OMMN-610 · OMM 1 Written Exam #1 · Mon 12 Oct 2026 · Weeks 1–8

OMM 1 Written · Practice Questions

Every practice question I could find for this exam, 655 questions after merging repeats: this year's in-class polls and practice docs, past clickers and Canvas quizzes (2021–2026), TA exam reviews (2020–2025), the textbook chapter questions and instructor review notes. asked N× means the same question showed up in N different decks or sets, so those are the ones to know cold. 2026 marks questions from this year's course material.

Each section now starts with a green Learn first box: the facts, tables and lecture slides you need to answer that section’s questions. Read it, then do the questions. Tap its title to fold it away.

How the Top 215 were chosen

Top 215 (under Show) is one question per high-yield fact, so nothing in it repeats. The questions are unchanged; only the selection is new.

  • Grouped by fact. Every one of the 655 questions was read and grouped with the others that test the same fact, meaning knowing one answers the other, even when the wording differs. That gives 350 distinct facts. Cases where the case changes the reasoning stay separate, like flexed vs extended Type II, inhalation vs exhalation ribs, or each organ's sympathetic level.
  • Rated for yield. Each fact was rated 1–5 for how likely it is to be on the exam, weighing faculty sources most: this year's clickers, Poll Everywhere, Canvas, the 2026 Written Review deck and instructor review notes. TA reviews and the textbook count less.
  • One best version per fact. Multiple choice over open ended, from a faculty or 2026 source where possible, and never a version whose key is disputed.
  • Highest yield first. Every fact rated 5 or 4 is in, plus the strongest of the 3s. What's left out is the least likely material: minor details of a point already covered, disputed keys, and trivia.

The 215 facts account for 496 of the 655 questions, because questions you skip often repeat a fact you've already practiced. 211 multiple choice, 4 open. Wk 1 16 · Wk 2 17 · Wk 3 28 · Wk 4 27 · Wk 5 44 · Wk 6 24 · Wk 7 30 · Wk 8 29. These questions carry a top 215 tag in every view.

About the answers

Answers follow each source's own key (answer slides, red or green text, highlighted choices, printed keys), checked against this year's lecture and review slides. Where an old key looks wrong or sources disagree, the question says so under Heads up and gives the answer this year's slides support. Each answer can open the lecture slide that teaches it. TA-written questions are not an official key, so defer to lecture and faculty.

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Week 1 · 63 questions

History & Philosophy

Questions 1–63

8 sections in this week
  1. 1.1Still's life & motivation
  2. 1.2Medicine in the 1800s
  3. 1.31874: birth of osteopathy
  4. 1.4Schools, licensure & the AOA
  5. 1.51918 flu & road to parity
  6. 1.6Tenets & philosophy
  7. 1.7Five models
  8. 1.8Touch & palpation

1.1 · 7 questions · Questions 1–7

Still's life & motivation

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Learn firstWhat you need for 1.1

Andrew Taylor Still was born August 6, 1828 in Jonesville, Lee County, Virginia, and lived 1828–1917. He later moved west to Missouri and Kansas, but he was born in Virginia. His father, Abram Still, was a Methodist circuit-rider preacher and physician; A.T. Still trained the usual way for the time, by apprenticeship with his father. It was Abram (not A.T.) who was the missionary to the Shawnee in Kansas; A.T. helped him doctor at the Wakarusa Mission. During the Civil War (1861–1865) Still served as a surgeon and cavalry major in the Kansas militia.

The turning point: in February 1864, three of his children died of spinal meningitis despite the best orthodox (heroic) medicine of the day. This loss is what drove him to reject the medicine of his time and look for a better way; he then studied anatomy for about 10 years before announcing osteopathy. Older TA keys word this as the death of his daughters (the 2026 slides just say “3 of his children”), so pick the meningitis/children (or daughters) answer, not “sons”.

Influences on StillWhat actually happened
Children's deaths (1864)The main trigger: 3 children died of spinal meningitis
Headache at age 10He relieved his own migraine by lying with the back of his neck resting on a rope (a lowered swing), “suspending the action of the great occipital nerve” (not magnetic healing): an early structure–function lesson
His fatherApprenticed and worked with Abram Still
BonesettingExposed to European bonesetting as an adult (likely during the Civil War), not treated by one as a child
Heroic medicineHe rejected it (Benjamin Rush's bloodletting, purging, mercury); he never preferred it

Things that did not motivate him: Baker University refused to let him teach his methods; 1893 was the allopaths' first attack on DOs (not 1828). Still believed the physician does not “cure” disease: the physician removes structural impediments so the body can heal itself, and he saw the neuromusculoskeletal system as an access point to the body's physiology.

1top 215asked 4×Still's life & motivation

When and where was A.T. Still born?

Ans: Still's birth → August 6, 1828 → Lee County, Virginia

Why: A.T. Still was born on August 6, 1828 in Jonesville, Lee County, Virginia. He lived from 1828 to 1917.

Heads up: One 2025 TA version keyed 'Aug 6, 1826 – Lee County, Virginia'. The course lecture gives Still's dates as 1828–1917, born in Lee County, VA, so 1828 is correct.

Explanation & sources

Explanation

The other choices are other famous births: A is Elvis Presley (Tupelo), B is Abraham Lincoln (Kentucky), C is Michael Jackson (Gary, Indiana). Other versions of this question pair Virginia/1828 against Missouri or Kansas dates; Still moved to Missouri and Kansas later but was born in Virginia. His father Abram Still was a Methodist circuit-rider preacher and physician.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 3-4
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 4-5
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 3-4
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 4-5
2Still's life & motivation

Which of the following significant events occurred in 1828?

Ans: 1828 → Still's birth year → born in Lee County, Virginia

Why: 1828 is the year A.T. Still was born in Lee County, Virginia.

Explanation & sources

Explanation

B, the allopaths' first attack pushing DOs toward MD licensure, was 1893. C is wrong because the Civil War ran 1861–1865, when Still was a military surgeon and cavalry major for the Kansas militia. D happened in February 1864, when 3 of his children died of spinal meningitis.

Asked in

  • 2020 TA Review Exam 1 · TA review · slides 5-6
3top 215asked 9×2026Still's life & motivation

A.T. Still had some significant experiences that were influential in the development of osteopathy. Which of the following represents one of these influential experiences?

Ans: What drove Still → 1864 spinal meningitis killed 3 of his children → sought better medicine

Why: In February 1864, three of his children died of spinal meningitis despite the best medicine of the day. This loss drove Still to look for an alternative to orthodox (heroic) medicine.

Explanation & sources

Explanation

A: his father Abram, not Still, was the missionary to the Shawnee in Kansas (Still helped him doctor at the Wakarusa Mission). B: Still was exposed to bonesetting ideas as an adult, not treated by a bonesetter as a child. C: at age 10 he relieved his own migraine by 'suspending the action of the great occipital nerve', not with magnetic healing. E: Baker University refused to let him teach his methods.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 1-2
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slides 6-8 (poll)
  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 4-5
  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 19-20
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 8-9
  • 2024-2025 IA 1A - History · In-class poll · slides 2-3
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 2-3
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 3-4
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 4-5
Lecture slides (2)
Week 1 · IA1 History & Philosophy · slide 4
Study note
4Still's life & motivation

Why did A.T. Still develop the osteopathic approach?

Ans: Still's motivation → three children died of spinal meningitis → searched for a better way

Why: Still developed osteopathy after the tragic loss of 3 children to spinal meningitis, then spent about 10 years studying anatomy before announcing his approach.

Explanation & sources

Explanation

A is wrong because Still taught that the physician does not cure disease; the physician removes structural impediments so the body can heal itself. C reverses the history: people were fed up with toxic and addictive drugs. D is also reversed: Still saw the neuromusculoskeletal system as an access point to the underlying physiology.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 20-21
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 4
5asked 3×Still's life & motivation

What event pushed A.T. Still to reject the medical practice of his day?

Ans: Break from orthodox medicine → children lost to spinal meningitis (1864) → answer the meningitis deaths

Why: The deaths of his children in the 1864 spinal meningitis outbreak made Still reject the medicine of his time. The TA keys word this as the death of his daughters.

Heads up: The 2026 course slides only say '3 of his children' died of spinal meningitis in February 1864. The older TA keys say 'daughters', so D is kept here.

Explanation & sources

Explanation

Options A and C are made up. B (sons) is the distractor the TA writers set against 'daughters'. Other versions use joke distractors (Angel Gabriel, Shawnee spirit journey, Gettysburg). On the exam, choose the option about children dying of meningitis.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 7-8
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 5-6
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 6-7
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 4
6Still's life & motivation

Which event led A.T. Still to question and ultimately sever all his ties to contemporary medical practice in the late 19th century?

Ans: Turning point → 1864 meningitis outbreak killed his children → rejected orthodox medicine

Why: The outcome of the 1864 meningitis outbreak, in which 3 of his children died, led Still to break from orthodox medicine.

Explanation & sources

Explanation

A: Still served as a Civil War surgeon, but he wrote that the war 'left my family unharmed'; meningitis was the turning point. C: his apprenticeship under his father Abram was simply how he trained. D: calomel (mercury) was part of the heroic medicine he later rejected, but it was not the triggering event.

Asked in

  • 2020 TA Review Exam 1 · TA review · slides 7-8
7Still's life & motivation

All of the following were influential to A.T. Still in developing osteopathy EXCEPT:

Ans: EXCEPT → Still rejected heroic medicine → 'preference' for it is false

Why: Still rejected heroic medicine (Benjamin Rush's bloodletting, purging and mercury). He did not prefer it.

Explanation & sources

Explanation

A: the meningitis deaths of his children were the main trigger. C: at age 10 he relieved his own migraine by resting his neck, an early structure-function lesson. D: he trained by apprenticeship with his physician father. E: he was likely exposed to European bonesetting during the Civil War, and bonesetting is listed as an influence.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 4-5
Lecture slide (1)
Study note

1.2 · 3 questions · Questions 8–10

Medicine in the 1800s

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Learn firstWhat you need for 1.2

In the 1800s the mainstream (orthodox, MD) practice was heroic medicine, championed by Benjamin Rush. It tried to drive out disease by depleting the body and eliminating symptoms. Still saw these practices as ineffective and often harmful, and rejected them.

  • Heroic medicine practices: bloodletting and leeches, purging with mercury (calomel) and other inorganic substances, blistering, and high doses of opium, alcohol and arsenic.
SystemFounder / key idea
Heroic medicine (mainstream)Benjamin Rush; depletion: bloodletting, mercury purging, blistering, symptom elimination
HomeopathySamuel Hahnemann; “like cures like” (Law of Similars)
Thomsonian medicine → EclecticismSamuel Thomson, self-taught herbalist; also inspired naturopathy
Magnetic healingFringe practice; one of the influences on Still

What Still practiced instead: a holistic approach that treats the person as a unit of body, mind and spirit. Any answer naming bloodletting, blistering, purging or high-dose mercury/opium/alcohol is heroic medicine, which he rejected.

8top 215asked 6×2026Medicine in the 1800s

After the Civil War in 1864, Still concluded that the orthodox medical practices of his day were frequently ineffective and often harmful. Which of the following was the main form of medicine practiced by physicians at the time?

Ans: Orthodox 1800s medicine → bloodletting, mercury purging, blistering → heroic medicine

Why: Heroic medicine, championed by Benjamin Rush, was the main form of medicine practiced by MDs. It used bloodletting and leeches, purging with mercury (calomel), blistering, and high doses of opium, alcohol and arsenic.

Explanation & sources

Explanation

Homeopathy (A) was Hahnemann's 'like cures like' system, an alternative sect. Eclecticism (E) grew out of Samuel Thomson's herbal medicine, which also inspired naturopathy (B). Magnetic healing (C) was a fringe practice that influenced Still. None of these was the mainstream.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 3-4
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slides 13-16 (poll + 'Question 2' slide)
  • 2024-2025 IA 1A - History · In-class poll · slides 5-6
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 4-5
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 5-6
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 7-8
Lecture slide (1)
Study note
9Medicine in the 1800s

Which pairing of a type of medicine with its description is correct?

Ans: Benjamin Rush → depletion (purging, bloodletting, blistering) → heroic medicine

Why: Heroic medicine was advocated by Benjamin Rush: purging with mercury, bloodletting and leeches, blistering, and a focus on eliminating symptoms.

Explanation & sources

Explanation

A is wrong because Samuel Thomson, the self-taught herbalist, founded Thomsonian medicine (eclecticism), not homeopathy. C is wrong because Samuel Hahnemann and the Law of Similars belong to homeopathy, not heroic medicine.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 7-8
Lecture slide (1)
Study note
10Medicine in the 1800s

Which practice would Dr. Still practice?

Ans: Still rejected heroic depletion → favored whole-person care → holistic body-mind-spirit approach

Why: Still favored a holistic approach that treats the person as a unit of body, mind and spirit.

Explanation & sources

Explanation

Bloodletting (A), blistering (B), high doses of mercury, opium and alcohol (D), and purging with inorganic substances (E) are all heroic medicine practices, which Still rejected as harmful.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 7-8
Lecture slide (1)
Week 1 · Written Review deck · slide 8

1.3 · 3 questions · Questions 11–13

1874: birth of osteopathy

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Learn firstWhat you need for 1.3

On June 22, 1874, Still “flung to the breeze the banner of osteopathy”. The phrase means he divorced himself from (severed all ties to) the orthodox medicine of the time and publicly announced his new philosophy and practice. This date is the birth of osteopathy.

Watch for near-miss dates: July 22, 1874, June 22, 1873 and June 20, 1874 are all wrong. Know the timeline so you can reject distractors:

YearEvent
1828Still born, Lee County, Virginia
Feb 18643 children die of spinal meningitis
June 22, 1874Banner flung to the breeze: osteopathy is born
1892American School of Osteopathy (ASO) opens, Kirksville, MO
1896Vermont is the first state to license DOs
1897Missouri guarantees DOs the right to practice; AOA founded
1916AOA sets a standard 4-year curriculum
1918Spanish flu pandemic
11asked 7×1874: birth of osteopathy

On what date was the banner of osteopathy “flung to the breeze”?

Ans: "Flung the banner" → birth of osteopathy → June 22, 1874

Why: On June 22, 1874, Still 'flung to the breeze the banner of osteopathy'. This date marks the birth of osteopathy.

Explanation & sources

Explanation

Watch for near-miss dates in other versions: July 22, 1874, June 22, 1873, and June 20, 1874 are all wrong. Other key dates used as distractors: February 1864 (his children's deaths), 1892 (ASO opens), 1918 (Spanish flu).

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 5-6
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 3-4
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 9-10
  • 2023 TA Review - Written Exam 1 · TA review · slides 6-7
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 9-10
  • 2022 TA Review - Exam 1 · TA review · slides 3-4
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 8-9
Lecture slides (2)
Week 1 · Written Review deck · slide 3
Week 1 · Written Review deck · slide 2
12top 215asked 6×20261874: birth of osteopathy

What does “flung to the breeze the banner of osteopathy” refer to?

Ans: "Flung the banner" → Still divorced himself from orthodox medicine → announced osteopathy, 1874

Why: The phrase refers to Still divorcing himself from the orthodox medicine of the time and announcing his new philosophy and practice in 1874. It marks the birth of osteopathy.

Explanation & sources

Explanation

B: the first school (ASO) opened in 1892. C: the AOA mandated a 4-year curriculum in 1916. D: Missouri guaranteed DOs the right to practice in 1897, but Vermont (1896) was first. E: lesion osteopaths did try to keep surgery and pharmacology out of the curriculum, but that is not what the phrase means.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 5-6
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slides 19-21 (poll)
  • 2024-2025 IA 1A - History · In-class poll · slides 10-11
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 6-7
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 7-8
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 12-13
Lecture slides (2)
Week 1 · Written Review deck · slide 3
Week 1 · Written Review deck · slide 2
13asked 2×1874: birth of osteopathy

June 22, 1874 is a significant date in the history of osteopathic medicine because it marks the date that…

Ans: June 22, 1874 → banner flung to the breeze → Still severs ties with traditional medicine

Why: On June 22, 1874, Still severed his ties to traditional medicine and 'flung to the breeze the banner' of osteopathy.

Explanation & sources

Explanation

A: the American School of Osteopathy was founded in 1892. B: Vermont became the first state to license DOs in 1896. C: Missouri guaranteed DOs the right to practice in 1897.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 6-7
  • 2020 TA Review Exam 1 · TA review · slides 9-10
Lecture slide (1)
Week 1 · Written Review deck · slide 3

1.4 · 5 questions · Questions 14–18

Schools, licensure & the AOA

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Learn firstWhat you need for 1.4

American School of Osteopathy (ASO): opened 1892 in Kirksville, Missouri (today ATSU). The first class had 18 students (15 men, 3 women). Memory hook: about 400 years after Columbus (1492).

Licensure: Vermont was the first state to license DOs (1896). Missouri followed in 1897 with a law guaranteeing DOs the right to practice. By 1901, 14 states licensed osteopathy; Mississippi and Louisiana were the last to grant full practice rights (1973).

AOA: the American Osteopathic Association was founded in 1897 (it began as a student group in Kirksville) and is now headquartered in Chicago, Illinois.

Rod of Asclepius (AOA symbol)Caduceus
SerpentsOne serpentTwo serpents
StaffPlain wooden staff, no wingsWinged staff
Belongs toAsclepius, Greek god of healing and medicineHermes, messenger (herald) of the gods; often misused as a medical symbol

Other dates used as distractors: 1893 (allopaths' first attack), 1902 (Still publishes Philosophy and Mechanical Principles of Osteopathy), 1918 (Spanish flu), 1961 (California merger).

14top 215asked 3×Schools, licensure & the AOA

The American School of Osteopathy first opened its doors in what year and state?

Ans: ASO → Kirksville, Missouri → 1892

Why: The American School of Osteopathy opened in 1892 in Kirksville, Missouri (now ATSU).

Explanation & sources

Explanation

Each distractor is a real date: 1896 Vermont is the first state to license DOs; 1961 California is the California merger; 1828 Virginia is Still's birth; 1897 Illinois is the founding of the AOA, now headquartered in Chicago (it began as a student group in Kirksville). The first ASO class had 18 students (15 men, 3 women).

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 8-9
  • 2023 TA Review - Written Exam 1 · TA review · slides 8-9
  • 2020 TA Review Exam 1 · TA review · slides 15-16
Lecture slides (2)
Week 1 · IA1 History & Philosophy · slide 4
Study note
15asked 3×Schools, licensure & the AOA

In what year did the American School of Osteopathy open?

Ans: ASO founded → Kirksville → 1892

Why: The ASO opened in 1892. A memory hook: about 400 years after Columbus sailed.

Explanation & sources

Explanation

1893 was the allopaths' first attack on osteopathy. 1902 is when Still published 'Philosophy and Mechanical Principles of Osteopathy'. 1918 was the Spanish flu pandemic. 1897 was Missouri's DO licensure law and the AOA's founding.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 15-16
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 11-12
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 14-15
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 4
16top 215asked 12×2026Schools, licensure & the AOA

The first state to license DOs was:

Ans: First DO licensure → 1896 → Vermont

Why: Vermont was the first state to license osteopathic physicians, in 1896.

Explanation & sources

Explanation

Missouri (C) was second, in 1897, when it passed legislation guaranteeing DOs the right to practice. Alaska, Illinois and Iowa are distractors. Other versions use Virginia, California, Kansas, New York, Alabama or Pennsylvania. By 1901, 14 states licensed osteopathy, and Mississippi and Louisiana were the last to grant full practice rights, in 1973.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 7-8
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slide 23
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 10-11
  • 2024-2025 IA 1A - History · In-class poll · slides 14-15
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 8-9
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 9-10
  • 2023 TA Review - Written Exam 1 · TA review · slides 10-11
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 7-8
  • 2022 TA Review - Exam 1 · TA review · slide 9
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 16-17
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 256-257
  • 2020 TA Review Exam 1 · TA review · slides 248-249
Lecture slide (1)
Study note
17asked 2×Schools, licensure & the AOA

What is the symbol of the American Osteopathic Association?

Ans: AOA symbol → single serpent on a staff → Rod of Asclepius

Why: The AOA uses the Rod of Asclepius: one serpent wound around a wooden staff. Asclepius is the Greek god of healing and medicine.

Explanation & sources

Explanation

The caduceus (two serpents on a winged staff) belongs to Hermes, messenger of the gods. It is often misused as a medical symbol.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 2-3
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 2-3
18asked 2×Schools, licensure & the AOA

The AOA differs from the AMA in its use of the Rod of Asclepius as opposed to the Rod of Caduceus. Which of the following statements correctly describes the Rod of Asclepius?

Ans: Asclepius = god of healing → one serpent, plain wooden staff

Why: The Rod of Asclepius is a solitary serpent-entwined wooden staff belonging to Asclepius, the Greek deity of healing and medicine.

Explanation & sources

Explanation

A mixes one serpent with the messenger of the gods. B mixes the caduceus's wings and two serpents with the god of healing. D describes the caduceus (Hermes, herald of the gods), not the Rod of Asclepius.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 5-6
  • 2020 TA Review Exam 1 · TA review · slides 2-3

1.5 · 6 questions · Questions 19–24

1918 flu & road to parity

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Learn firstWhat you need for 1.5

1918 Spanish flu: an H1N1 pandemic (not H3N2) that infected about 500 million people and killed about 50–100 million. Osteopathic patients did far better than those given standard care, which greatly boosted the profession's reputation. The OMT protocol aimed to increase lymphatic drainage via the thoracic pump and clear inflammatory exudate, decrease the work of breathing and improve thoracic compliance.

Mortality, 1918Standard medical careOsteopathic care
Influenza5–6%0.25% (about 95% lower, so an option saying “50% less” is keyed false: it understates the benefit)
Influenza + pneumonia33%10%

Road to parity:

  • 1910 Flexner Report closed many schools; only 5 of 8 osteopathic schools survived.
  • 1929: pharmacology added to the osteopathic curriculum (brought DO and MD curricula closer).
  • WWII: DOs could not serve as military physicians, so they gained patients at home.
  • 1955 AMA committee on DO schools found: admission requirements the same, clinical study time the same, “pure medicine” = 90–95% of instruction, standard medical texts used, and instruction time 25% higher (extra teaching on MSK disease and manipulation). It concluded DO training was not “cult healing”.
  • 1961 California merger: about 2,000 California DOs exchanged their DO for an MD degree ($65 and 12 Saturday classes); the separate DO licensing board was eliminated, and after a 1962 referendum no new DOs could be licensed in California. Existing DOs could keep practicing.
  • The AOA and remaining DOs fought back: licensure restored in 1971 and the 1962 law struck down by the California Supreme Court in 1974. The reversal led to broad acceptance of the DO as equal to the MD, a stronger AOA, and new COMs, beginning with MSUCOM in 1969 (the first new COM in 53 years).
  • 1967: the AMA offered to let osteopathic students transfer to MD schools (a separate event).
Lecture slide for this section (1)
IA1 slide 32: the 1961 California merger
19top 215asked 6×20261918 flu & road to parity

The Spanish Flu Pandemic of 1918 is significant in osteopathic history. Which of the following is a true statement regarding this pandemic?

Ans: 1918 OMT protocol → thoracic pump → increase lymphatic drainage

Why: The 1918 OMT influenza protocol aimed to increase lymphatic drainage via the thoracic pump. It also decreased the work of breathing and improved thoracic compliance.

Heads up: The 2026 IA1 poll shortened option E to 'Medical care had a 5% mortality for influenza cases', which by itself is close to the slide's 5–6%. The fuller wording used here (influenza cases that also developed pneumonia) is clearly false, and C matches the slide 'Increasing lymphatic drainage via thoracic pump', so C is the answer.

Explanation & sources

Explanation

A understates the benefit: influenza mortality was 0.25% with osteopathic care vs 5–6% with standard care, far more than 50% less. B: it was H1N1, not H3N2. D: about 50–100 million people died (about 500 million infected). E: standard care had 33% mortality when pneumonia developed (vs 10% with osteopathic care); 5–6% was the figure for influenza alone.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 9-10
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slides 27-30 (poll)
  • 2024-2025 IA 1A - History · In-class poll · slides 16-17
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201918 flu & road to parity

The treatment of patients during the Spanish Flu Pandemic in 1918 was influential for the development of osteopathy because:

Ans: 1918 flu → OMT patients had far lower mortality → boost for the profession

Why: Patients treated with OMT had much better outcomes: influenza mortality 0.25% and pneumonia mortality 10%, vs 5–6% and 33% with standard care.

Explanation & sources

Explanation

B is wrong because lymphatic techniques decrease, not increase, the work of breathing. C contradicts the data. D is wrong because pharmacology was not added to the osteopathic curriculum until 1929.

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211918 flu & road to parity

The findings of the AMA committee that investigated education at schools of osteopathy included:

Ans: 1950s AMA committee → found DO schools equivalent → same admission requirements

Why: The 1955 AMA committee found that admission requirements were the same as MD schools. It concluded that osteopathic instruction could not be called 'cult healing'.

Explanation & sources

Explanation

The real findings: clinical study time was the same (not less, B); 'pure medicine' was 90–95% of instruction (not 60–65%, C); standard medical texts were used (D); and instruction time was 25% higher (not lower, E), mostly from extra teaching on MSK disease and manipulation.

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22top 215asked 6×20261918 flu & road to parity

Which of the following events in osteopathic history was followed by a significant strengthening of the AOA and the opening of several new COMs?

Ans: After 1961 California merger → AOA fought back → new COMs from 1969 (MSUCOM)

Why: After the 1961 California merger, the remaining DOs and the AOA fought back and won (licensure restored in 1971; the 1962 law was struck down in 1974). New COMs then opened, starting with MSUCOM in 1969, the first new COM in 53 years.

Explanation & sources

Explanation

A: the 1910 Flexner Report closed schools; only 5 of 8 osteopathic schools survived. B: adding pharmacology (1929) brought the curricula closer to MD schools but was not followed by a wave of new COMs. C: WWII helped DOs gain patients at home, since DOs could not serve as military physicians. E: the 1918 flu boosted the profession's reputation.

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231918 flu & road to parity

The California Merger resulted in:

Ans: 1961 California merger → DOs became MDs for $65, DO board eliminated → later reversed

Why: In 1961 about 2,000 California DOs exchanged their DO for an MD degree ($65 and 12 Saturday classes), the separate DO licensing board was eliminated, and the change was later reversed (1974 California Supreme Court).

Explanation & sources

Explanation

A is the opposite: no new DOs could be licensed in California after the 1962 referendum. B describes the AMA's 1967 offer to transfer osteopathic students to MD schools, a separate event. C overstates it: existing DOs could keep practicing, but new DO licensure stopped until 1974.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 9-10
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 32
241918 flu & road to parity

What was the importance of the California merger and what year did it happen?

Ans: California merger → 1961 → DOs became MDs, later overturned → DO proven equal

Why: The merger happened in 1961. DOs could easily convert to MDs, and when the law was overturned (1974) the episode led to broad acceptance of the DO degree as equal to the MD.

Explanation & sources

Explanation

A has the wrong year (1960). C uses 1910, the year of the Flexner Report. D is wrong on both counts: by 1973 the DO degree was recognized in all 50 states, and nothing ruled it unequal.

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Week 1 · IA1 History & Philosophy · slide 32

1.6 · 14 questions · Questions 25–38

Tenets & philosophy

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There are exactly four tenets of osteopathic medicine. Most questions here are “which is NOT a tenet?”, so memorize the list and reject anything else, even if it is a true statement.

  1. The body is a unit; the person is a (dynamic) unit of body, mind and spirit.
  2. The body is capable of self-regulation, self-healing and health maintenance.
  3. Structure and function are reciprocally interrelated (at all levels; neither ranks above the other).
  4. Rational treatment is based on the above three principles.

Common fakes: “balance between homeostasis and allostasis”; “SD is only caused by trauma”; “treat or suppress symptoms” (that is the heroic approach); “body is many parts, function over structure”; “the nervous system is the sole determinant of disease”; “body and mind are indirectly related”; “mind, body, spirit are separate”. True-but-not-a-tenet traps: “the five models are...” and “SDs are diagnoses treatable with osteopathy”. Older expanded principle lists also say the body can defend and repair itself, and that disease can follow when adaptability is overwhelmed; these fit osteopathic thinking.

Health and disease. Still: “When all parts of the human body are in line we have perfect health. When they are not, the effect is disease.” and “To find health should be the object of the doctor. Anyone can find disease.” (A.T. Still, not Mitchell, Jones or Sutherland.)

Structure ↔ function works both ways. Example: an asymmetrically enlarged mastoid process from years of pull by a hypertonic SCM is abnormal function producing abnormal structure.

Host factors + Disease/Disturbance = Illness. Host factors are the patient's own terrain (age, genetics, health, nutrition, immune function, MSK and fascia) and are what OMT optimizes. Disturbances are outside insults: pathogens, toxins, environmental stressors, injury and trauma. Illness is the result, not an input.

Lecture slide for this section (1)
Written Review slide 8: the four tenets
25top 215asked 7×2026Tenets & philosophy

Which of the following is NOT one of the principles of osteopathic philosophy?

Ans: Four tenets: unit, self-regulation, structure-function, rational treatment → homeostasis/allostasis balance isn't one

Why: The four tenets are: the body is a dynamic unit of function; it has self-regulatory, self-healing mechanisms; structure and function are interrelated; and rational treatment is based on these. A 'balance between homeostasis and allostasis' is not a tenet.

Explanation & sources

Explanation

A, B, D and E are the four tenets almost word for word. C borrows physiology vocabulary to sound plausible. The tenet uses 'self-regulatory (homeostatic)', but there is no allostasis principle.

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Week 1 · Written Review deck · slide 8
26Tenets & philosophy

Which is NOT a principle of osteopathic philosophy?

Ans: Not among the four tenets → 'SD only from trauma' → false and not a tenet

Why: 'Somatic dysfunction is only caused by a traumatic event' is not a tenet, and it is false: SD also arises from posture, overuse and visceral reflexes.

Explanation & sources

Explanation

A, B, C and E are the four tenets: dynamic unit of function, self-regulation/self-healing, structure-function interrelation, and rational treatment based on these principles.

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Week 1 · Written Review deck · slide 8
27asked 3×Tenets & philosophy

What is NOT a principle of osteopathy?

Ans: Osteopathy treats the person, not just symptoms → suppressing symptoms isn't a tenet

Why: Treating or suppressing symptoms is the disease-focused (heroic) approach Still rejected. It is not one of the four tenets.

Explanation & sources

Explanation

A (self-regulation), B (unit of body, mind and spirit), D (rational treatment) and E (structure and function are reciprocally interrelated) are the four tenets.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 11-12
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Lecture slide (1)
Week 1 · Written Review deck · slide 8
28Tenets & philosophy

What is not a principle of osteopathic medicine?

Ans: Tenet: body is a unit; structure and function are equal partners → 'many parts, function over structure' is false

Why: Osteopathy holds that the body is a unit and that structure and function are reciprocally interrelated. Neither is ranked above the other, so E contradicts two tenets.

Explanation & sources

Explanation

A (mind, body, spirit), B (structure-function), C (rational treatment) and D (self-regulatory mechanisms) are the four tenets.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 11-12
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Week 1 · Written Review deck · slide 8
29Tenets & philosophy

Which of the following are the Tenets of Osteopathic Medicine? (Select all that apply.)

Ans: Four tenets = self-regulation + unit + rational treatment + structure-function → C is symptom suppression

Why: The four tenets are self-regulation (A), unit of body, mind and spirit (B), rational treatment (D) and structure-function interrelation (E).

Explanation & sources

Explanation

C (treating or suppressing symptoms) is the disease-oriented approach of heroic medicine. Osteopathy focuses on finding health and supporting the body's own healing.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 13-14
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Week 1 · Written Review deck · slide 8
30asked 2×Tenets & philosophy

Which is not a principle of the philosophy of osteopathic medicine?

Ans: True statement ≠ tenet → five models are a framework, not one of the four principles

Why: The five models are a true statement about osteopathic care, but they are a practice framework, not one of the four principles.

Explanation & sources

Explanation

A (structure-function), B (body is a unit), C (self-regulation and self-healing) and E (rational treatment) are the four principles. The trap is choosing between true statements: ask which one is on the tenet list.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 61-62
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Lecture slides (2)
Week 1 · Written Review deck · slide 8
Week 1 · IA1 History & Philosophy · slide 42
31Tenets & philosophy

Which of the following is NOT one of the four tenets of osteopathic medicine?

Ans: Body is a unit → no single system is the 'sole determinant' → C is not a tenet

Why: No tenet says the nervous system is the sole determinant of disease. That conflicts with the tenet that the body is a unit.

Explanation & sources

Explanation

A (self-regulation and self-healing), B (structure-function) and D (rational treatment based on the others) are tenets. The fourth tenet, not listed here, is that the body is a dynamic unit of function.

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Week 1 · Written Review deck · slide 8
32Tenets & philosophy

Which of the following is NOT one of the four tenets of osteopathy?

Ans: Tenets are philosophy, not diagnoses → 'SD treatable with osteopathy' isn't a tenet

Why: 'Somatic dysfunctions are diagnoses treatable with osteopathy' may be true, but it is not a tenet.

Explanation & sources

Explanation

A (dynamic unit), B (self-regulatory, self-healing mechanisms) and C (structure-function) are tenets. The fourth is that rational treatment is based on these principles.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 14-15
Lecture slide (1)
Week 1 · Written Review deck · slide 8
33Tenets & philosophy

Which one is NOT considered an osteopathic principle?

Ans: Body is a unit of body, mind and spirit → 'indirectly related' contradicts it

Why: Osteopathy holds that body, mind and spirit form one unit, so saying the body and mind are only indirectly related contradicts the first tenet.

Explanation & sources

Explanation

A, B and C are tenets. E and F come from older expanded lists of osteopathic principles: the body can defend and repair itself, and disease can follow when the body's adaptability is overwhelmed. Both fit osteopathic thinking.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 129-130
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Week 1 · Written Review deck · slide 8
34Tenets & philosophy

Which one of the following is a correct statement regarding the four tenets of osteopathic philosophy?

Ans: Tenet 1 → human being is a dynamic unit of function

Why: The first tenet is that a human being is a dynamic unit of function (body, mind and spirit).

Explanation & sources

Explanation

B, C and D are negated versions of real tenets: the body does have self-regulatory, self-healing mechanisms; structure and function are interrelated; and mind, body and spirit are a unit.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 13-14
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Week 1 · Written Review deck · slide 8
35Tenets & philosophy

Which of the following best describes the osteopathic view of health and disease?

Ans: Still: 'When all parts are in line we have perfect health' → disease from structural disruption

Why: Still taught: 'When all parts of the human body are in line we have perfect health. When they are not, the effect is disease.' Proper structure supports proper function.

Explanation & sources

Explanation

A ignores host factors and the body's self-healing. C is wrong because surgery is not always required (Still did surgery but used it selectively). D is wrong because osteopathy focuses on finding health, not just disease.

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36top 215Tenets & philosophy

The osteopathic principle which best describes the relationship of an asymmetrically enlarged left mastoid process is:

Ans: Enlarged mastoid → chronic muscle pull (SCM) remodels bone → abnormal function causes abnormal structure

Why: Long-term abnormal pull of muscles on the mastoid, such as a hypertonic SCM, remodels the bone. That is abnormal function producing abnormal structure.

Explanation & sources

Explanation

A and D describe structure acting on function, the reverse direction. C contradicts the tenet that structure and function are reciprocally interrelated.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 5, slides 26-27
Lecture slide (1)
Week 1 · Written Review deck · slide 8
37asked 3×Tenets & philosophy

Who said, “To find health should be the object of the doctor. Anyone can find disease.”

Ans: Health-focused quote → founder's philosophy → A.T. Still

Why: A.T. Still said it. It sums up the osteopathic focus on finding and supporting health rather than chasing disease.

Explanation & sources

Explanation

The others are key figures in OMT: Fred Mitchell Sr. developed muscle energy, Lawrence Jones developed counterstrain, and William G. Sutherland developed the cranial concept. Stephen C. Jones is a distractor.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 13-14
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38top 215asked 7×2026Tenets & philosophy

Within the equation, Host Factors + Disease/Disturbance = Illness, which component would trauma fit into?

Ans: Trauma = outside insult acting on the host → disease/disturbance factor

Why: Trauma is an outside insult, so it is a disease/disturbance factor, along with pathogens, toxins, environmental stressors and injury.

Explanation & sources

Explanation

A: host factors are the patient's own terrain (age, genetics, health state, nutrition, immune function, MSK and fascia). Host factors are what OMT optimizes. C: illness is the result of host plus disturbance, not an input. D and E are wrong because trauma fits one category.

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1.7 · 15 questions · Questions 39–53

Five models

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The five models are lenses for choosing treatment goals. Pick the model by what the treatment is aimed at:

ModelGoal / signature wordsExamples
BiomechanicalCoordination and symmetry of MSK and fascial structures in posture and motionHVLA (e.g. Kirksville crunch), standing desk / ergonomics, lifting-injury SD
Respiratory-circulatoryReduce diaphragm restrictions, enhance circulation (arterial, venous, lymphatic), reduce work of breathing, improve thoracic cage complianceRib raising, lymphatic pumps for pneumonia, RA knee swelling
NeurologicalImprove autonomic balance, facilitated segments (viscerosomatic reflexes), decrease nociceptive load, improve proprioceptionCounterstrain (resets muscle spindle), palpitations from irritated SNS/PNS nerves to the heart
Metabolic-energyOptimize energy expenditure/exchange; enhance immune and organ function; diet, exercise, nutrition, preventionWeight loss
BehavioralPsychological and social components: stress, anxiety, work/family, drug use, values, sleep habitsChanging sleep habits

Common traps: anything about the heart is not automatically respiratory-circulatory; if the problem is nerve tone, it is neurological. A lifestyle change aimed at posture (standing desk) is biomechanical, and weight loss is metabolic-energy, not behavioral. Rib raising also calms sympathetics, but it is filed under respiratory-circulatory for its breathing and fluid goals. For a purely physical trauma (whiplash with painful breathing) the behavioral model fits least.

Pneumonia OMT goals: lymphatic pumping to increase uptake of lymph from interstitial tissue, free rib motion and the diaphragm (decrease psoas tone so the diaphragm moves normally), create optimal intrathoracic negative pressure, and normalize (not increase) autonomic tone.

Lecture slide for this section (1)
IA1 slide 42: the five models
39top 215Five models

Which of the following best describes the Respiratory/Circulatory model?

Ans: Respiratory-circulatory → diaphragms, fluid flow, work of breathing, thoracic cage compliance

Why: The respiratory-circulatory model aims to reduce diaphragm restrictions, enhance circulation (arterial, venous, lymphatic), reduce the work of breathing and improve thoracic cage compliance.

Explanation & sources

Explanation

A describes the metabolic-energy model (energy expenditure, immune function). B describes the neurological model (autonomic balance, facilitated segments, proprioception). D describes the behavioral model (emotional balance, stress, coping).

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40Five models

Match each model with its definition: Biomechanical, Behavioral, Respiratory-circulatory, Metabolic, Neurological. A. Optimize the body's energy expenditure and exchange; enhance immune system and organ function. B. Improve autonomic balance and facilitated segments (viscerosomatic reflexes), decrease nociceptive load, improve proprioception. C. Improve the psychological and social components of the health spectrum. D. Coordination and symmetry of musculoskeletal and fascial structures in posture and motion. E. Reduce diaphragm restrictions, enhance circulatory mechanisms, reduce work of breathing, improve thoracic cage compliance.

AnswerBiomechanical = D; Behavioral = C; Respiratory-circulatory = E; Metabolic = A; Neurological = B

Ans: Key word per model: posture/symmetry → biomechanical; psyche → behavioral; diaphragms/fluids → resp-circ; energy → metabolic; autonomics → neuro

Why: Each model has a signature: biomechanical = posture and motion; behavioral = psychological and social; respiratory-circulatory = diaphragms and fluid flow; metabolic-energy = energy and immune/organ function; neurological = autonomic balance, reflexes, pain and proprioception.

Explanation & sources

Explanation

The usual mix-up is respiratory-circulatory vs neurological for thoracic problems. Fluid flow and breathing mechanics are respiratory-circulatory, while sympathetic and parasympathetic tone is neurological.

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Week 1 · IA1 History & Philosophy · slide 42
41top 215asked 7×2026Five models

A patient comes to your office with complaints of neck pain and slight pain with breathing after being rear ended while driving over the weekend. Into which treatment model of OMM do these complaints least fit?

Ans: Physical trauma: neck MSK, breathing, pain/reflex, healing energy → no psychosocial complaint → behavioral

Why: The complaints are physical: neck strain, painful breathing, pain and reflex changes, and tissue healing. Nothing points to a psychological, social or lifestyle problem, so the behavioral model fits least.

Explanation & sources

Explanation

Biomechanical (A) covers the whiplash neck strain. Respiratory-circulatory (B) covers painful breathing and rib/diaphragm restriction. Neurologic (C) covers pain, facilitation and autonomic effects. Metabolic-energy (D) covers inflammation and the energy cost of healing.

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Week 1 · IA1 History & Philosophy · slide 42
42top 215asked 7×2026Five models

A patient presents to your clinic with complaints of palpitations described as an occasional racing heartbeat. There is no pain but mild dizziness during these episodes. An electrocardiogram is normal. After your examination you decide that the heartbeat irregularity is the result of irritation to the sympathetic and parasympathetic nerves that go to the heart. Into which treatment model of OMM does this scenario most directly fit?

Ans: Irritated sympathetic/parasympathetic nerves → autonomic balance → neurological model

Why: The cause is autonomic nerve irritation, so treatment aims at autonomic balance. That is the neurological model.

Explanation & sources

Explanation

Respiratory-circulatory (B) is tempting because the heart is involved, but that model is about fluid flow and breathing mechanics, not nerve tone. Biomechanical (A) is posture and motion. Metabolic-energy (D) is energy and organ or immune function. Behavioral (E) is psychosocial.

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Week 1 · IA1 History & Philosophy · slide 42
43Five models

Which model would describe getting a standing desk for studying?

Ans: Standing desk → changes posture and ergonomics → biomechanical model

Why: A standing desk changes posture and ergonomics, which falls under the biomechanical model (structure, posture, motion).

Explanation & sources

Explanation

Behavioral (E) is tempting because it is a lifestyle change, but its target is posture, not psyche or stress. The TA summary: biomechanical = structural/postural; resp-circ = fluids; neurological = nerves and reflexes; metabolic = energy; behavioral = mind, sleep, stress, lifestyle.

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Week 1 · IA1 History & Philosophy · slide 42
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44top 215asked 3×Five models

HVLA is an example of which osteopathic model?

Ans: HVLA thrust → restores joint motion → biomechanical model

Why: HVLA is a thrust technique that restores motion at a restricted joint, which makes it a biomechanical treatment.

Explanation & sources

Explanation

Rib raising goes with respiratory-circulatory, counterstrain with neurological (muscle spindle reset), weight loss with metabolic-energy, and sleep habits with behavioral.

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Week 1 · Written Review deck · slide 6
45Five models

Mr. Smith bends over forward and to the right to pick up a heavy box quickly and develops back pain. You diagnose a type 2 SD at T10 and treat with a Kirksville crunch. What model of osteopathy does this dysfunction and treatment most reflect?

Ans: Lifting injury + vertebral SD + HVLA (Kirksville crunch) → biomechanical

Why: A lifting strain causing a vertebral somatic dysfunction, treated with a thrust (the Kirksville crunch is a thoracic HVLA), is classic biomechanical model care.

Explanation & sources

Explanation

The other models could add secondary goals, such as calming a facilitated segment (neurological), but the dysfunction and the chosen technique are structural.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 22-23
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Week 1 · Written Review deck · slide 6
46asked 2×Five models

Which model would describe rib raising?

Ans: Rib raising → improves rib motion, breathing and lymph flow → respiratory/circulatory

Why: Rib raising improves rib cage motion, reduces the work of breathing and helps fluid (lymph, venous) move. That is the respiratory/circulatory model.

Explanation & sources

Explanation

Rib raising also normalizes sympathetic tone (a neurological effect), but the TA key files it under respiratory-circulatory because of its breathing and fluid goals. Its typical uses are pneumonia and cardiac conditions.

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Week 1 · Written Review deck · slide 7
47Five models

A 66-year-old male develops lobar pneumonia caused by Strep pneumo. You attempt to use rib and diaphragm based lymphatic techniques you learned in OMM to help move and clear inflammation. Which model of osteopathy would this treatment be a part of?

Ans: Lymphatic + rib/diaphragm techniques → move fluid, ease breathing → respiratory/circulatory

Why: Lymphatic pumps and rib/diaphragm work move fluid and improve breathing mechanics, which places them in the respiratory/circulatory model.

Explanation & sources

Explanation

Neurological (C) would be the choice if the goal were normalizing sympathetic or parasympathetic tone. Metabolic (D) would be the choice for immune or energy optimization through nutrition or medication. The question stresses moving fluid.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 16-17
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Week 1 · Written Review deck · slide 7
48Five models

A patient with rheumatoid arthritis presents with persistent knee swelling. Which osteopathic model best addresses this condition by enhancing lymphatic drainage and improving thoracic cage compliance?

Ans: Swelling + lymphatic drainage + thoracic compliance → respiratory-circulatory

Why: Promoting venous and lymphatic return by freeing diaphragms and improving thoracic cage compliance is the respiratory-circulatory model. The RA knee swelling case is the lecture's own example.

Explanation & sources

Explanation

Biomechanical (A) would address joint alignment. Neurological (C) would address pain or autonomic tone. Behavioral (B) would address the psychosocial side. None of them targets fluid drainage.

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Lecture slide (1)
Week 1 · Written Review deck · slide 7
49Five models

What is the goal of OMT when treating pneumonia?

Ans: Pneumonia OMT → lymphatic pump techniques → uptake of lymph from interstitial tissue

Why: In pneumonia, OMT uses pumping techniques to assist lymphatic drainage, increasing uptake of lymph from the interstitial tissues. Other goals are freeing rib motion and the diaphragm and normalizing autonomic tone.

Explanation & sources

Explanation

A is reversed: you decrease psoas tone so the diaphragm can move normally. C is wrong because the goal is to normalize autonomic tone, not increase it. D is wrong because a free diaphragm generates optimal intrathoracic negative pressure, not positive pressure.

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Lecture slide (1)
Week 1 · Written Review deck · slide 7
50asked 2×Five models

Which model would describe counterstrain?

Ans: Counterstrain → resets muscle spindle (proprioceptive reflex) → neurological model

Why: Counterstrain works by resetting the muscle spindle, an inappropriate proprioceptive reflex, so it belongs to the neurological model.

Explanation & sources

Explanation

Counterstrain does relieve musculoskeletal pain, which makes biomechanical (A) tempting, but its mechanism is neural: muscle spindles are sensory receptors. HVLA is the biomechanical example.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 19-20
  • 2020 TA Review Exam 1 · TA review · slides 19-20
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 42
51asked 3×Five models

Which model would describe weight loss?

Ans: Weight loss → energy balance, diet and exercise → metabolic-energy

Why: Weight loss is about energy balance, diet and exercise, which fall under the metabolic-energy model.

Explanation & sources

Explanation

Behavioral (E) is tempting because habits change, but the metabolic-energy model explicitly includes diet and exercise education, nutritional deficiencies and preventive health measures.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 15-16
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 25-26
  • 2020 TA Review Exam 1 · TA review · slides 25-26
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 42
52asked 2×Five models

Which model would describe changing sleep habits?

Ans: Sleep habits → lifestyle and psyche → behavioral model

Why: Sleep habits are listed under the behavioral model, with stress, anxiety, work and family, drug use, and values and beliefs.

Explanation & sources

Explanation

The behavioral model covers the psychological and social side of health, including habits like sleep. The other models address structure, fluids, nerves and energy.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 21-22
  • 2020 TA Review Exam 1 · TA review · slides 21-22
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 42
53Five models

A 48-year-old male truck driver presents with excessive daytime sleepiness; he gets at least 7 hours of sleep per night but frequently wakes unrested. In reference to his sleeping habits, which model of osteopathy may be of most interest?

Ans: Question asks about sleeping habits → lifestyle → behavioral model

Why: The question asks about his sleeping habits, which fall under the behavioral model.

Explanation & sources

Explanation

Other models might matter for the workup (for example, obstructive sleep apnea and respiratory mechanics), but the question asks specifically about habits.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 18-19
Lecture slide (1)
Week 1 · IA1 History & Philosophy · slide 42

1.8 · 10 questions · Questions 54–63

Touch & palpation

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Palpation is the art of feeling tissues with your hands so that changes in tension and position can be noticed, diagnosed and treated. Touch is a primary diagnostic tool and is essential to a trusting, respectful doctor-patient relationship. Palpatory skill can be developed to know the “feel” of conditions and can be used to monitor progress. Rules: don't rush or use rough maneuvers, and work with the tissues, not at them. Palpate from superficial to deep.

Physiology of touch: the stimulus is coded by primary afferent (sensory) neurons in the dermis and epidermis (Merkel discs, Meissner, Ruffini and Pacinian corpuscles) and processed in the postcentral gyrus (primary somatosensory cortex). Touch releases oxytocin, which downregulates the HPA axis, lowers cortisol, enhances parasympathetic tone and improves social and pair bonding (including during lactation).

Layer / testFindingMeans
Skin temperature & textureChangeAltered blood flow (SNS)
Skin dragMoistureSudomotor (sweat) SNS activity
Erythema test (red reflex): stroke skin, watch rednessRedness lastsAcute SNS activity / acute SD
Redness then early blanching (turns pale before the surrounding skin)Chronic SD (chronic SNS → vasoconstriction). Normal skin: brief redness that fades
Skin rollFascial resistanceAcute or chronic dysfunction
Turgor—Hydration status
Subcutaneous tissueEdema (most easily felt here)Metabolic conditions or acute inflammation
Deep fascia, muscleTone, ropiness, bogginessFelt deeper, after superficial layers
54Touch & palpation

Which one incorrectly describes touch/palpation in the OMM context?

Ans: Lecture: palpatory skills CAN develop and CAN monitor progress → C is incorrect

Why: The lecture states that palpatory skills can develop to know the 'feel' of conditions and can be used to monitor patient progress. C says the opposite.

Explanation & sources

Explanation

A is the Mitchell/Pruzzo definition of palpation. B and D are straight from the touch slide: touch is essential to a trusting doctor-patient relationship and is a primary diagnostic tool.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 15-16
55Touch & palpation

Which of the following is TRUE about touch?

Ans: Touch = primary diagnostic tool + builds trust → D

Why: Touch is a primary diagnostic tool and is essential to a trusting, respectful doctor-patient relationship.

Explanation & sources

Explanation

A is wrong twice: oxytocin downregulates the HPA axis and enhances parasympathetic tone. B is wrong because the stimulus is coded in primary afferent (sensory), not efferent, neurons. C is wrong because oxytocin improves social and pair bonding, including during lactation.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 27-28
56Touch & palpation

Which of the following is TRUE of touch?

Ans: Touch → oxytocin release → downregulates HPA axis

Why: Oxytocin is released in response to touch. It downregulates the HPA axis, lowers cortisol and enhances parasympathetic tone.

Explanation & sources

Explanation

A: touch strengthens the patient-physician relationship. B: touch is a primary, not secondary, diagnostic tool. D: touch downregulates, not upregulates, the HPA axis.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 16-17
57Touch & palpation

Which of the following is a physiological response to therapeutic touch in osteopathy?

Ans: Touch → oxytocin → ↓HPA, ↓cortisol → parasympathetic activation

Why: Touch triggers oxytocin release, which downregulates the HPA axis and activates the parasympathetic nervous system (lower stress, lower blood pressure).

Explanation & sources

Explanation

A is reversed: cortisol goes down. C is reversed: touch calms sympathetic activity. D is wrong because touch stimulates tactile receptors (Merkel, Meissner, Ruffini, Pacinian) rather than inhibiting them.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 21-22
58Touch & palpation

Which of the following is not true about touch?

Ans: Palpation rule: don't rush, work WITH the tissue → C is false

Why: The lecture rule is: don't rush palpation or use rough maneuvers, and work with the tissues, not at them.

Explanation & sources

Explanation

A and B: touch releases oxytocin and downregulates the HPA axis. D: Merkel discs and Pacinian corpuscles are touch receptors. E: tactile sensation is processed in the postcentral gyrus (primary somatosensory cortex).

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 24-25
59Touch & palpation

Qualities and significance of altered palpation, fill in the blanks: ____: temperature and texture changes signify altered ____. Erythema test (____ reflex): prolonged redness signifies ____. Skin roll test: fascial resistance signifies ____ in that area. Subcutaneous tissue: edema signifies ____.

AnswerSkin temperature/texture → altered blood flow (SNS). Erythema (red) reflex: prolonged redness → acute SNS activity/injury. Skin roll resistance → acute or chronic dysfunction. Subcutaneous edema → metabolic conditions or acute inflammation.

Ans: Each layer's finding → what it signifies (blood flow, acute SNS, dysfunction, fluid)

Why: Skin temperature/texture reflects blood flow controlled by the SNS. A prolonged red reflex means acute SNS activity. Skin roll resistance means acute or chronic dysfunction. Subcutaneous edema means metabolic conditions or acute inflammation.

Explanation & sources

Explanation

Other items on the same lecture list: skin drag reflects sudomotor (sweat) activity of the SNS, and turgor reflects hydration status.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 27-28
Lecture slide (1)
Week 3 · Written Review deck · slide 20
60Touch & palpation

Which palpatory test evaluates the sympathetic nervous system response by observing the duration of skin redness after stimulation?

Ans: Redness duration after stroking → erythema test (red reflex)

Why: The erythema test (red reflex) strokes the skin and watches how long the redness lasts. Prolonged redness suggests acute SNS activity or somatic dysfunction.

Explanation & sources

Explanation

Skin drag (A) checks for moisture from sudomotor SNS activity. Skin roll (B) checks superficial fascial resistance. Turgor (D) checks hydration.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 23-24
Lecture slides (2)
Week 3 · Written Review deck · slide 20
Week 3 · IA3 Somatic Dysfunction · slide 26
61top 215asked 6×2026Touch & palpation

The erythema test/red reflex is done by firmly stroking or rubbing the skin to elicit a response. What does a prolonged redness of the skin indicate?

Ans: Redness that lingers → acute SNS activity/injury (chronic = quick blanching)

Why: Prolonged redness after stroking reflects acute SNS activity or acute injury. The irritated, facilitated tissue overreacts with hyperemia.

Explanation & sources

Explanation

B: in chronic dysfunction, chronic sympathetic tone causes vasoconstriction, so the redness fades and the area blanches early. C, D and E are not what the red reflex tests: hydration is checked by turgor, and ligament stretch or postural compensation are found by other exam steps.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 19-20
  • 2026 OMM1 IA1 History & Philosophy (Poll Everywhere) · In-class poll · slides 53-54 (post-poll Q4)
  • 2025 (PE) IA 1B - Philosophy · In-class poll · slides 12-14
  • 2024 IA 1B - Philosophy · In-class poll · slides 8-9
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 22-23
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 36-37
Lecture slides (2)
Week 3 · Written Review deck · slide 20
Week 3 · IA3 Somatic Dysfunction · slide 26
62Touch & palpation

The Erythema test or Red reflex is done by firmly stroking or rubbing the skin to elicit a response. What does a long-lasting reddening of the skin indicate?

Ans: Redness lasts → acute (facilitated tissue overreacts) → acute somatic dysfunction

Why: A long-lasting red reflex marks acute somatic dysfunction, with acute sympathetic activity and tissue irritation.

Explanation & sources

Explanation

B: in chronic SD the redness fades quickly and blanches. C (edema) is felt in the subcutaneous tissue, not tested by the red reflex. D and E do not cause a prolonged red reflex.

Asked in

  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 21-22
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 26
Week 3 · Written Review deck · slide 20
63asked 2×Touch & palpation

Where is edema most easily felt?

Ans: Fluid collects in the subcutaneous layer → edema felt in subQ

Why: Edema (excess tissue fluid) is palpated in the subcutaneous tissue. It points to metabolic conditions or acute inflammation.

Explanation & sources

Explanation

The epidermis (A) gives temperature and texture. Deep fascia (B) and muscle (D) are felt deeper, after the superficial layers, for tone, ropiness and bogginess. Palpation goes from superficial to deep.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 258-259
  • 2020 TA Review Exam 1 · TA review · slides 250-251

Week 2 · 49 questions

Gross Motion & Posture

Questions 64–112

7 sections in this week
  1. 2.1Planes & axes
  2. 2.2Describing spinal motion
  3. 2.3Lateral gravity line
  4. 2.4Static landmarks
  5. 2.5Spinal curves & development
  6. 2.6Postural types
  7. 2.7Muscles in posture

2.1 · 8 questions · Questions 64–71

Planes & axes

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Every motion happens in a plane and around an axis that is perpendicular to that plane. Questions often ask for only one of the two, so read whether they want the plane or the axis.

MotionPlane (moves IN)Axis (moves AROUND)
Flexion / extension (forward–back)SagittalTransverse = frontal = lateral (runs side to side)
Side bendingFrontal = coronalSagittal = A-P (runs front to back)
Rotation (turning)Horizontal = transverseVertical = longitudinal (the “Y-axis”)

Naming trap: “frontal” and “transverse” each name both a plane and an axis. The frontal (lateral/transverse) axis is the axis for flexion, but the frontal plane is the plane for side bending. The transverse plane is the rotation plane. “Longitudinal” is an axis, never a plane. Tie-break: if both “Frontal” and “Transverse” are offered as the axis for forward/back motion, the key picks Frontal (it reads “Transverse” as the rotation plane). “Neutral” is a position (range of sagittal positioning), not a motion.

Quick cases: thrown forward and back in a car → sagittal plane (axis: frontal). Leaning forward then yanking head back → frontal/lateral axis. Turning to look right then left → horizontal plane.

Lecture slide for this section (1)
Written Review slide 11: planes and axes
64top 215asked 2×Planes & axes

Fill in the blanks: Flexion and extension occur in the ____ plane around the ____ axis. Side bending occurs in the ____ plane around the sagittal axis. Rotation occurs in the ____ plane around the ____ axis.

AnswerFlexion/extension: sagittal plane, transverse (frontal/lateral) axis. Side bending: frontal (coronal) plane, sagittal (A-P) axis. Rotation: horizontal (transverse) plane, vertical (longitudinal) axis.

Ans: Motion happens IN a plane, AROUND the axis perpendicular to it

Why: Each motion happens in one plane around the axis perpendicular to that plane: flexion/extension = sagittal plane, transverse axis; side bending = frontal plane, A-P axis; rotation = horizontal plane, vertical axis.

Explanation & sources

Explanation

The naming trap: the frontal (lateral/transverse) axis runs side to side and is the axis for flexion. The frontal plane is the plane for side bending. Synonyms: frontal = coronal; horizontal = transverse plane; vertical = longitudinal axis; sagittal axis = A-P axis.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 21-22
  • 2024 TA Review (Harlem) Exam 1 · TA review · slide 19
Lecture slide (1)
Week 2 · Written Review deck · slide 11
65asked 2×Planes & axes

Flexion/extension occurs in which plane and around which axis?

Ans: Forward/back bending → sagittal plane → around side-to-side (frontal/lateral) axis

Why: Flexion/extension occurs in the sagittal plane around the frontal (transverse/lateral) axis.

Explanation & sources

Explanation

A pairs the sagittal plane with the rotation axis. B is side bending (frontal plane, sagittal axis). C is rotation (horizontal plane, longitudinal axis). Tip: the motion occurs on the plane; the axis is what you move about.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 23-24
  • 2022 TA Review - Exam 1 · TA review · slides 26-27
Lecture slide (1)
Week 2 · Written Review deck · slide 11
66Planes & axes

Rotation occurs in the ____ plane around the ____ axis.

Ans: Turning → horizontal (transverse) plane → around vertical (longitudinal) axis

Why: Rotation occurs in the transverse (horizontal) plane around the longitudinal (vertical) axis.

Explanation & sources

Explanation

A mixes the flexion plane with the rotation axis. B is side bending. D is flexion/extension.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 31-32
Lecture slide (1)
Week 2 · Written Review deck · slide 11
67asked 2×2026Planes & axes

For each description, select the physiologic motion most closely associated with it (each heading may be used once, more than once, or not at all). Headings: A. flexion and extension; B. neutral; C. rotation; D. rotation and sidebending; E. sidebending. Description: Normal motion of the vertebral segments in a sagittal plane.

Ans: Sagittal plane → forward/backward bending → flexion and extension

Why: Motion in the sagittal plane (about a transverse axis) is flexion and extension.

Explanation & sources

Explanation

Neutral (B) is a range of sagittal positioning where Fryette's first principle applies, not a motion. Rotation (C) is about a vertical axis. Sidebending (E) is in the coronal plane about an A-P axis.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.14 Q10 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 19 (answer slide 20); textbook TB_Basics.pdf p.14 Q10
Lecture slide (1)
Week 2 · Written Review deck · slide 11
68asked 2×2026Planes & axes

For each description, select the physiologic motion most closely associated with it (each heading may be used once, more than once, or not at all). Headings: A. flexion and extension; B. neutral; C. rotation; D. rotation and sidebending; E. sidebending. Description: Motion of vertebral segments around a vertical axis.

Ans: Vertical (longitudinal) axis → turning motion → rotation

Why: Motion around the vertical (longitudinal) axis is rotation.

Explanation & sources

Explanation

Flexion/extension (A) is about a transverse axis. Sidebending (E) is about an A-P axis in the coronal plane. D combines two motions and does not describe a single axis.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.14 Q11 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 21 (answer slide 22); textbook TB_Basics.pdf p.14 Q11
Lecture slide (1)
Week 2 · Written Review deck · slide 11
69Planes & axes

A passenger's driver hits the brakes quickly, and the passenger is thrown forward and backward against the seat. In which plane of motion was the passenger moving forward and backward?

Ans: Forward/back = flexion/extension → asks for PLANE → sagittal

Why: Forward and backward motion is flexion/extension, which occurs in the sagittal plane. The question asks for the plane, not the axis.

Explanation & sources

Explanation

If the question asked for the axis, the answer would be frontal. Horizontal (B) is the rotation plane. Frontal (C) is the side bending plane. Longitudinal (D) is an axis, not a plane.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 35-36
Lecture slide (1)
Week 2 · Written Review deck · slide 11
70Planes & axes

A skier leans forward to stick her tongue to a ski-lift bar, then yanks her head backward. Along which axis of motion was she moving forward and back?

Ans: Forward/back = flexion/extension → asks for AXIS → frontal (lateral) axis

Why: Flexion/extension moves around the frontal (lateral/transverse) axis, while the motion itself occurs in the sagittal plane.

Explanation & sources

Explanation

Sagittal (A) is the plane, or the axis for side bending. Transverse (C) here would refer to the rotation plane. 'Y-axis' (D) is the vertical axis used for rotation.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 40-41
Lecture slide (1)
Week 2 · Written Review deck · slide 11
71Planes & axes

A man on a ski lift turned to his right to look at someone, then turned back to the left and felt back pain. In which plane of motion was he moving?

Ans: Turning = rotation → horizontal (transverse) plane

Why: Turning is rotation, which happens in the horizontal (transverse) plane around the vertical axis.

Explanation & sources

Explanation

Sagittal (B) is the flexion/extension plane. Frontal (C) is the side bending plane. D is a joke option.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 42-43
Lecture slide (1)
Week 2 · Written Review deck · slide 11

2.2 · 3 questions · Questions 72–74

Describing spinal motion

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To describe a real movement, break it into its parts and name each one. Use the plane/axis table from 2.1.

  • Bending forward = flexion → sagittal plane, transverse/lateral (frontal) axis.
  • Reaching toward something in front and to the right = adds rotation right → horizontal plane, longitudinal (vertical) axis.
  • Leaning sideways = side bending → frontal plane, A-P (sagittal) axis. Only include it if the story describes it.

Apply it: picking up a child standing straight ahead = pure flexion (sagittal plane, transverse/lateral axis). Child in front and to the right = flexion and rotation right. If the question asks only about the rotational part, answer horizontal plane, longitudinal axis, and ignore the flexion.

72top 215asked 7×2026Describing spinal motion

A patient presents with pain in the low back. He says that it began with a sharp pain when he bent forward to pick up his child who was standing in front of him to the right. Which of the following describes his spinal motion?

Ans: Bent forward = flexion + reached toward the right = rotation right → flexion and rotation right

Why: Bending forward is flexion, and reaching for a child in front and to the right adds rotation right.

Explanation & sources

Explanation

A and E (both 'rotation right' on the source slide) leave out the forward bend. C adds side bending, which the story does not describe. D (flexion alone) fits only if the child were straight ahead, as in the next question.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 23-24
  • 2026 OMM1 IA2 Gross Motion (Poll Everywhere) · In-class poll · slides 4-5
  • 2025 (PE) IA 2 - Gross motion · In-class poll · slides 4-8
  • 2024 IA 2 - Gross motion · In-class poll · slides 3-4
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 26-27
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 27-28
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 42-43
Lecture slides (2)
Week 2 · Written Review deck · slide 11
Study note
73top 215asked 7×2026Describing spinal motion

A patient presents with pain in the low back. He says that it began with a sharp pain when he bent forward to pick up his child who was standing directly in front of him. Which of the following describes the plane and axis of the spinal motion?

Ans: Straight forward bend = pure flexion → sagittal plane, transverse/lateral axis

Why: A straight forward bend is pure flexion: sagittal plane around a transverse (frontal/lateral) axis.

Explanation & sources

Explanation

B is rotation (horizontal plane, vertical axis). C is side bending (frontal plane, A-P axis). D and E pair a plane with the wrong axis. Older versions word A as 'sagittal plane with a frontal/lateral axis', which means the same thing.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 25-26
  • 2026 OMM1 IA2 Gross Motion (Poll Everywhere) · In-class poll · slides 6-7
  • 2025 (PE) IA 2 - Gross motion · In-class poll · slides 9-13
  • 2024 IA 2 - Gross motion · In-class poll · slides 5-6
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 28-29
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 29-30
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 44-45
Lecture slide (1)
Week 2 · Written Review deck · slide 11
74top 215Describing spinal motion

A patient presents with pain in the low back. He says that it began with a sharp pain when he bent forward and rotated to the right to pick up his child who was standing in front of him and to the side. Which of the following describes the plane and axis of the rotational spinal motion?

Ans: Asks only about rotation → horizontal plane, longitudinal axis

Why: The question asks only about the rotational part, which occurs in the horizontal plane around the longitudinal (vertical) axis.

Explanation & sources

Explanation

A describes the flexion part of the same movement, a trap for students who don't read 'rotational'. C is side bending. D and E pair a plane with the wrong axis.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 32-33
Lecture slide (1)
Week 2 · Written Review deck · slide 11

2.3 · 6 questions · Questions 75–80

Lateral gravity line

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The lateral gravity (plumb) line is viewed from the side. In ideal posture it passes, from top to bottom, through these points of lateral symmetry:

  1. Vertex: just posterior to the apex of the coronal suture
  2. External auditory meatus (not internal; not behind the ear canal)
  3. Humeral head (not the greater tuberosity)
  4. Middle of the L3 vertebral body (not L5)
  5. Femoral head (not the lesser trochanter)
  6. Just behind (posterior to) mid-knee
  7. Just anterior to the lateral malleolus

The body's center of gravity is about 5 cm anterior to S2 (S2 is not itself a lateral-line landmark). A line falling in front of the knee or behind the lateral malleolus means postural misalignment. One question keys “anterior to the medial malleolus”; the slide says lateral, but that option is still the intended answer because the others are clearly wrong.

Reading a patient: a head and ear sitting well forward of the line means the external auditory meatus is the most deviated landmark (the 2026 key also accepts L3).

Whole-body deviations: anterior postural deviation = all points in front of the line, weight carried on the metatarsals. Posterior postural deviation = body leans back and balance is kept by an anterior thrust of the pelvis and hips, with marked lordosis from the mid-thoracic spine down.

Written Review slide 10: points of lateral symmetry
75asked 2×Lateral gravity line

Which of the following is a landmark the plumb line is drawn through?

Ans: Lateral line → EAM, humeral head, L3, femoral head, behind mid-knee, anterior to malleolus → B closest

Why: The lateral line passes just anterior to the lateral malleolus (the ankle). B is the only option near a true landmark.

Heads up: The keyed option says 'anterior to the MEDIAL malleolus'. The 2026 slides and the TA's own slide note say just anterior to the LATERAL malleolus. B is still the intended answer because the other three options are clearly wrong.

Explanation & sources

Explanation

A: the line passes through the external auditory meatus, not behind the ear canal. C: it passes just behind the mid-knee, not in front of the kneecap. D: it passes through the femoral head, not the lesser trochanter. The center of gravity is about 5 cm anterior to S2.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 19-20
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 22-23
Lecture slide (1)
Week 2 · Written Review deck · slide 10
76top 215Lateral gravity line

Which of the following is NOT a point of lateral symmetry when comparing to the gravity line?

Ans: Gravity line at the ankle is just ANTERIOR to the lateral malleolus → 'posterior' is wrong

Why: At the ankle the gravity line falls just anterior to the lateral malleolus, not posterior to it.

Explanation & sources

Explanation

External auditory meatus (A), humeral head (B), femoral head (C) and the middle of L3 (E) are all true points of lateral symmetry.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 33-34
Lecture slide (1)
Week 2 · Written Review deck · slide 10
77top 215Lateral gravity line

A plumb line (gravity line) is dropped along the lateral side of a standing patient. Which physical landmark is a correct point of lateral symmetry?

Ans: Lateral line points → femoral head is on the list → D

Why: The femoral head is one of the points of lateral symmetry.

Explanation & sources

Explanation

Each other option is a near miss: A should be the external (not internal) auditory meatus; B should be the humeral head (not the greater tuberosity); C should be the middle of L3 (not L5); E should be just anterior (not posterior) to the lateral malleolus.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 46-47
Lecture slide (1)
Week 2 · Written Review deck · slide 10
78top 215Lateral gravity line

A patient comes to your OMM clinic concerned about their posture. You use a plumb line to look at their landmarks. Which of the following findings are a sign of postural misalignment?

Ans: Normal: just BEHIND mid-knee, just ANTERIOR to lateral malleolus → C and E deviate

Why: Normally the line passes just behind the mid-knee and just anterior to the lateral malleolus. A line anterior to the knee (C) or posterior to the lateral malleolus (E) both mean misalignment.

Heads up: The TA key marks only C. E (just posterior to the lateral malleolus) also contradicts the slide's landmark list (just ANTERIOR to the lateral malleolus), and the stem asks which findings 'are' signs, so C and E are both correct.

Explanation & sources

Explanation

A (middle of L3), B (external auditory meatus) and D (humeral head) are normal landmarks.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 28-29
Lecture slide (1)
Week 2 · Written Review deck · slide 10
79top 215asked 7×2026Lateral gravity line

In the assessment of this patient using the lateral gravity line, which landmark shows the most deviation?

Ans: Compare to ideal line: head/ear far forward of the line (and lumbar region off) → EAM most deviated

Why: The line should pass through the external auditory meatus, but this patient's head and ear sit well forward of it, which is the most obvious deviation. The 2026 answer slide also accepts the L3 vertebral body, where the lumbar curve falls off the line.

Heads up: The 2026 IA2 poll marks both B and D green. Earlier years (2021–2025 clickers) key B only. If an exam version allows only one answer, choose B (external auditory meatus).

Explanation & sources

Explanation

The ankle (A) is in its normal place, just in front of the line. The femoral head (C) is close to the line. S2 (E) is not a lateral line landmark; the body's center of gravity sits about 5 cm anterior to S2.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 27-28
  • 2026 OMM1 IA2 Gross Motion (Poll Everywhere) · In-class poll · slides 10-12
  • 2025 (PE) IA 2 - Gross motion · In-class poll · slides 15-21
  • 2024 IA 2 - Gross motion · In-class poll · slides 8-9
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 30-31
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 31-32
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 47-48
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 11
Week 2 · Written Review deck · slide 10
80asked 2×Lateral gravity line

If all plumb line points are anterior to the gravity line, this means the patient has…

Ans: Whole body ahead of the line → anterior postural deviation → weight on the metatarsals

Why: When the whole body leans forward of the line, this is anterior postural deviation, and weight is supported by the metatarsals.

Explanation & sources

Explanation

A and D describe posterior deviation: the body leans back and balance is kept by an anterior thrust of the pelvis and hips, with marked lordosis from the mid-thoracic spine down. C (kyphosis-lordosis) is a curve pattern, not a whole-body forward lean.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 260-261
  • 2020 TA Review Exam 1 · TA review · slides 252-253
Lecture slide (1)
Week 2 · Written Review deck · slide 9

2.4 · 6 questions · Questions 81–86

Static landmarks

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Static landmarks by view:

  • Anterior (from the front): head position, acromion process, iliac crest. (Ear position and knee flexion/extension are judged from the side.)
  • Posterior symmetry line: inion, midline of the vertebrae, midline of the sacrum, midline of the coccyx, and a point midway between the two ankles (left and right malleoli). The apex of the coronal suture is a lateral-line landmark, not posterior.
LandmarkVertebral level
Suprasternal (sternal) notchT2 vertebral body
Spine of the scapulaT3
Angle of Louis (sternal angle, rib 2 attaches)Anterior to T4; aortic arch just superior, tracheal bifurcation just posterior
Inferior angle of the scapulaT7
Xiphoid processAnterior to T9
12th ribFollow it to T12
UmbilicusAbout L3–L4 (L3 accepted)
Top of the iliac crestsL4–L5 interspace (L4 accepted)

Memory chain going down: notch T2 → scapular spine T3 → Louis T4 → inferior angle T7 → xiphoid T9 → iliac crest L4–5. A common trap is “Angle of Louis = T5”, which is wrong.

81Static landmarks

A patient asks for an osteopathic evaluation. The DO asks permission, then begins with observation from the front. Which anterior landmark is the doctor using?

Ans: Anterior landmarks (lecture): head position, acromion process, iliac crest → acromion

Why: The lecture's anterior landmarks are head position, the acromion process and the iliac crest. Of these, only the acromion is offered.

Explanation & sources

Explanation

Ear position and knee flexion/extension (A, C) are assessed from the lateral view, against the lateral line. Navel deviation (D) is not on the course's anterior landmark list.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 52-53
82Static landmarks

The doctor then asks the patient to turn around and observes her posteriorly. What posterior landmarks are being used? (Select all that apply.)

Ans: Posterior line: inion, vertebral midline, sacral midline, coccyx midline, midway between both malleoli

Why: The posterior symmetry line runs through the inion, the midline of the vertebrae, the midline of the sacrum, the midline of the coccyx, and a point midway between both malleoli.

Explanation & sources

Explanation

A is wrong: the apex of the coronal suture is a lateral line landmark; posteriorly you use the inion. C is wrong as written: the point is midway between the two ankles (left and right malleoli), not between the lateral and medial malleolus of one ankle.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 54-55
83top 215asked 3×Static landmarks

What is the functional landmark of the iliac crest?

Ans: Iliac crests → L4-L5 interspace

Why: The top of the iliac crests marks the L4-L5 interspace.

Explanation & sources

Explanation

Distractors are other landmarks: T3 = spine of the scapula; T7 = inferior angle of the scapula; T2 vertebral body = suprasternal notch; anterior to T9 = xiphoid process.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 84-85
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 95-96
  • 2020 TA Review Exam 1 · TA review · slides 83-84
84top 215asked 2×Static landmarks

Which vertebra is at the level of the angle of Louis?

Ans: Angle of Louis (sternal angle, rib 2) → anterior to T4

Why: The angle of Louis (sternal angle, where rib 2 attaches) lies anterior to T4. The aortic arch lies just superior and the tracheal bifurcation just posterior.

Explanation & sources

Explanation

T2 (B) is the level of the suprasternal notch (T2 body). T3 is the spine of the scapula. T1 and T5 are distractors.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 197-198
  • 2020 TA Review Exam 1 · TA review · slides 187-188
85Static landmarks

During an osteopathic exam you review the anatomical landmarks of the spine. Which of the following landmarks is incorrect?

Ans: Angle of Louis = T4, not T5 → C is incorrect

Why: The angle of Louis is at T4, not T5.

Explanation & sources

Explanation

Spine of the scapula = T3, sternal notch = T2 and inferior angle of the scapula = T7 are correct. The umbilicus lies at about L3-L4, and the iliac crest marks the L4-L5 interspace, so E and F are acceptable approximations.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 26-27
86Static landmarks

Match each landmark with its vertebral level: spine of scapula; suprasternal notch; xiphoid process; inferior angle of the scapula; angle of Louis. Choices: A. Anterior to T9; B. Anterior to T4; C. Aortic arch lies superior; D. T7; E. T3; F. Vertebral body of T2. (One landmark has two correct answers.)

AnswerSpine of scapula = E (T3); suprasternal notch = F (T2 body); xiphoid = A (anterior to T9); inferior angle of scapula = D (T7); angle of Louis = B and C.

Ans: Scapula spine T3 → notch T2 → Louis T4 → inferior angle T7 → xiphoid T9

Why: Functional landmarks: spine of scapula = T3, suprasternal notch = T2 body, angle of Louis = anterior to T4 (aortic arch just superior), inferior angle of scapula = T7, xiphoid = anterior to T9.

Explanation & sources

Explanation

Also know that the iliac crest marks the L4-L5 interspace and that the 12th rib can be followed to T12. Somatic dysfunction and group curves can shift these landmarks.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slide 72
Lecture slide (1)
Study note

2.5 · 7 questions · Questions 87–93

Spinal curves & development

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Convex = the side that bulges out. Lordosis = convex forward; kyphosis = convex backward (concave forward). The adult spine has four normal curves:

RegionCurveConvexity
CervicalLordosisForward
ThoracicKyphosisBackward
LumbarLordosisForward
Sacrum (fused)Kyphotic (not neutral)Backward (per the 2026 review deck)

“Hyper” or increased lordosis/kyphosis refers to pathological states. There is no normal cervical kyphosis or thoracic lordosis.

Development: the spine starts as one kyphotic curve and the lordoses develop as the baby lifts its head and then stands.

AgeSpine
BirthWhole spine kyphotic: one C-curve
13 monthsLumbar spine neutral
3 yearsLumbar lordosis begins to appear
8 yearsLumbar lordosis obvious
10 yearsClear adult stance (S-curve)

Causes of postural deviations: kyphosis: osteoporosis, compression fracture, depression, ankylosing spondylitis. Lordosis: pregnancy, obesity, high heels (weight in front or heels tip the pelvis forward → deeper lumbar curve). Scoliosis: unequal muscle use (e.g. carrying a bag), unequal growth, short leg, genetics. A pregnant woman in high heels → accentuated lumbar lordosis.

Lecture slide for this section (1)
Written Review slide 12: physiologic curves
87top 215Spinal curves & development

Which of the following curves is convex backward?

Ans: Convex backward = kyphosis → thoracic curve

Why: The thoracic kyphotic curve is convex backward (concave forward). The fused sacrum is also convex backward.

Explanation & sources

Explanation

Cervical (A) and lumbar (B) curves are lordotic, convex forward. There is no normal cervical kyphotic curve (D).

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 31-32
Lecture slide (1)
Week 2 · Written Review deck · slide 12
88Spinal curves & development

At birth the spine is kyphotic; the curves change as we grow. Which of the following adult curvatures is incorrect?

Ans: Adult curves: cervical lordosis, thoracic kyphosis, lumbar lordosis, sacrum kyphotic → 'sacrum neutral' is wrong

Why: The adult sacrum is kyphotic (convex backward), not neutral.

Heads up: The original Lect 2 slide says 'Fused Sacrum is convex forward', but the 2026 review deck and IA2 slides say convex backward (kyphotic). Either way 'neutral' is the incorrect choice; follow the review deck (convex backward).

Explanation & sources

Explanation

Cervical lordosis (A), thoracic kyphosis (B) and lumbar lordosis (C) are the normal adult curves. Lordosis means convex forward; kyphosis means convex backward.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 37-38
Lecture slide (1)
Week 2 · Written Review deck · slide 12
89top 215asked 2×Spinal curves & development

At birth, what is the shape of the spine?

Ans: Newborn → whole spine kyphotic → C-curve

Why: At birth the whole spine is one kyphotic C-curve. The cervical and lumbar lordoses develop later, as the baby lifts its head and then stands.

Explanation & sources

Explanation

The S-curve (A) is the adult pattern of alternating curves. 'T curve' (B) is not a term.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 89-90
  • 2020 TA Review Exam 1 · TA review · slides 77-78
90Spinal curves & development

Fill in the blank (development of spinal curves): Birth: whole spine is kyphotic/lordotic/neutral. 13 months: lumbar spine is kyphotic/lordotic/neutral. 3 years: lumbar kyphosis/lordosis begins to appear. 8 years: lumbar kyphosis/lordosis is obvious. 10 years: clear adult stance (cervical, thoracic, lumbar = ?).

AnswerBirth: kyphotic. 13 months: lumbar neutral. 3 years: lumbar lordosis begins. 8 years: lumbar lordosis obvious. 10 years: adult stance (cervical lordosis, thoracic kyphosis, lumbar lordosis).

Ans: Kyphotic C-curve → lumbar neutral (13 mo) → lordosis appears (3 y) → obvious (8 y) → adult (10 y)

Why: The spine starts as one kyphotic C-curve, the lumbar spine becomes neutral by 13 months, lordosis appears by 3 years, is obvious by 8, and the adult stance is clear by about 10 years.

Explanation & sources

Explanation

Adult curves alternate: cervical lordosis, thoracic kyphosis, lumbar lordosis, sacral kyphosis.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 75-76
91Spinal curves & development

Match the development of the spinal curves with when they occur (Birth, 13 months, 3 years, 8 years, 10 years): A. Lordosis obvious; B. Lumbar spine neutral; C. Whole spine is a C-curve; D. Clear adult stance; E. Lordosis begins to appear.

AnswerBirth = C; 13 months = B; 3 years = E; 8 years = A; 10 years = D

Ans: C-curve at birth → neutral 13 mo → lordosis begins 3 y → obvious 8 y → adult 10 y

Why: Order: C-curve at birth, lumbar neutral at 13 months, lordosis begins at 3 years, lordosis obvious at 8 years, adult stance at 10 years.

Explanation & sources

Explanation

This matching set uses the same timeline as the fill-in-the-blank version, so learn it once as a sequence.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 68-69
92asked 3×Spinal curves & development

What could produce these disorders? Name some causes of each of these postural deviations: kyphosis, lordosis and scoliosis.

AnswerKyphosis: osteoporosis, compression fracture, depression, ankylosing spondylitis. Lordosis: pregnancy, obesity, high heels. Scoliosis: unequal muscle use (e.g., carrying a bag), unequal growth, short leg, genetics.

Ans: Kyphosis → bone loss/fracture/mood; lordosis → anterior load (pregnancy, obesity, heels); scoliosis → asymmetry

Why: Kyphosis: osteoporosis, compression fracture, depression, rheumatologic disease such as ankylosing spondylitis. Lordosis: pregnancy, obesity, high heels. Scoliosis: unequal muscle use, unequal growth, short leg, genetics.

Explanation & sources

Explanation

Lordosis causes share one idea: weight carried in front (or heels tipping the pelvis) pulls the lumbar curve deeper. Short leg as a cause of functional scoliosis returns in Week 5.

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  • 2025 (PE) IA 2 - Gross motion · In-class poll · slide 23
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  • 2021 Compiled Clickers - Exam 1 · Clicker · slide 51
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Week 2 · Written Review deck · slide 12
93top 215Spinal curves & development

A woman comes in pregnant, wearing high heels, with back pain. What would you expect to find on observation of her posture?

Ans: Pregnancy + high heels → anterior load and pelvic tilt → increased lumbar lordosis

Why: Both pregnancy and high heels shift weight forward and tilt the pelvis anteriorly, producing an accentuated lumbar lordosis.

Explanation & sources

Explanation

A (flat back) is the opposite, a flattened lumbar curve. C and D swap the normal curve names: the cervical spine is lordotic and the thoracic spine is kyphotic.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 40-41
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Week 2 · Written Review deck · slide 12

2.6 · 10 questions · Questions 94–103

Postural types

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The figure “Four Types of Postural Alignment” (Kendall) is used for picture questions. Its order is fixed: A = ideal, B = kyphosis-lordosis, C = flat back, D = sway back.

PostureKey features
Ideal / normalLine through ear, shoulder, hip, just behind knee, just in front of ankle; normal curves
Kyphosis-lordosisForward head, rounded upper back, increased lumbar lordosis, abdomen forward
Flat backHead forward, slight ↑ cervical lordosis, slight upper thoracic kyphosis flattening below, flattened lumbar lordosis, hips and knees extended
Sway backPelvis shifted forward with posterior tilt, upper trunk sways back, ↑ cervical/thoracic curves, decreased lumbar lordosis, hyperextended hips and knees
Military bearing (“chest out, stomach in”)Head tilted posteriorly, chest elevated (anterior cervical, posterior thoracic deviation), cervical/thoracic spine otherwise normal (no ↑ kyphosis), increased lumbar lordosis, anterior pelvic tilt, knees extended, ankles plantar flexed
Anterior postural deviationWhole body ahead of the line; weight on the metatarsals
Posterior postural deviationBody leans back; balance by anterior thrust of pelvis and hips; increased lordosis from the mid-thoracic spine down

Sway back vs posterior deviation: both push the pelvis forward, but sway back has a decreased lumbar curve while posterior deviation has a marked lordosis.

IA2 slide 15: four types of postural alignment (A ideal, B kyphosis-lordosis, C flat back, D sway back)
94asked 2×Postural types

What posture is shown?

Ans: Plumb line through ear, shoulder, hip, behind knee, in front of ankle → normal (ideal)

Why: The plumb line falls through the ear, shoulder, mid-trunk and hip, just behind the knee, and just in front of the ankle, with normal curves. This is normal (ideal) alignment.

Explanation & sources

Explanation

Sway-back (A) shows the pelvis pushed forward with the upper trunk back. Flat-back (C) shows a flattened lumbar curve. Kyphosis-lordosis (D) shows exaggerated thoracic and lumbar curves.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 17-18
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 27-28
Lecture slide (1)
Week 2 · IA2 Gross Motion · slide 15
95top 215asked 7×2026Postural types

Which of the following postures is described as “swayback”?

Ans: Pelvis pushed forward of the line, trunk swayed back, hips/knees hyperextended → D

Why: In sway-back (D) the pelvis is shifted forward with a posterior tilt, the upper trunk sways back, the lumbar lordosis is decreased, and the hips and knees are hyperextended.

Explanation & sources

Explanation

A is ideal alignment. B is kyphosis-lordosis (exaggerated thoracic and lumbar curves). C is flat back (flattened lumbar curve, hips and knees extended).

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 29-30
  • 2026 OMM1 IA2 Gross Motion (Poll Everywhere) · In-class poll · slides 20-21
  • 2025 (PE) IA 2 - Gross motion · In-class poll · slides 25-29
  • 2024 IA 2 - Gross motion · In-class poll · slides 13-14
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 32-33
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 33-34
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 52-53
Lecture slide (1)
Week 2 · IA2 Gross Motion · slide 15
96top 215asked 2×Postural types

In the 'Four Types of Postural Alignment' figure (A-D), which posture is C?

AnswerFlat-back posture

Ans: C: lumbar curve flattened, head forward, hips and knees extended → flat back

Why: Posture C is flat back: head forward, slight increase in cervical lordosis, slight upper thoracic kyphosis that flattens below, flattened lumbar lordosis, and hips and knees extended.

Explanation & sources

Explanation

Figure order (Kendall): A ideal, B kyphosis-lordosis, C flat back, D sway back.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 26-27
  • 2022 TA Review - Exam 1 · TA review · slides 21-22
Lecture slide (1)
Week 2 · IA2 Gross Motion · slide 15
97Postural types

Identify the posture shown in the image.

Ans: Hips pushed forward, upper back leaning behind → sway-back

Why: The pelvis is pushed forward past the line while the upper trunk leans back, which is sway-back.

Explanation & sources

Explanation

Normal (B) stacks the head, trunk and pelvis over the ankle. Flat-back (C) lacks the forward pelvic shift. Kyphosis-lordosis (D) shows a rounded upper back plus a deep lumbar curve and protruding abdomen.

Asked in

  • 2020 TA Review Exam 1 · TA review · slides 28-29
Lecture slide (1)
Week 2 · IA2 Gross Motion · slide 15
98Postural types

Identify the posture shown in the image.

Ans: Forward head, rounded upper back, deep low-back curve with belly forward → kyphosis-lordosis

Why: Forward head, a rounded thoracic spine and an increased lumbar lordosis with a forward abdomen make this kyphosis-lordosis posture.

Explanation & sources

Explanation

Sway-back (A) has a decreased lumbar curve with the pelvis pushed forward. Flat-back (C) has a flattened lumbar curve. Normal (B) has neither exaggeration.

Asked in

  • 2020 TA Review Exam 1 · TA review · slides 30-31
Lecture slide (1)
Week 2 · IA2 Gross Motion · slide 15
99top 215Postural types

While observing a patient standing next to a plumb line, you note that the head is slightly posterior, the neck is anterior, the shoulders are back, the abdomen is flat and there is an increased lumbar lordosis. The pelvis has an anterior tilt, the knees are extended and the ankles are plantar flexed. What would you name this posture type?

Ans: Chest out, stomach in, head back + increased lordosis, anterior pelvic tilt → military

Why: Military-bearing posture ('chest out, stomach in'): head tilted posteriorly, chest elevated, increased lumbar lordosis, anterior pelvic tilt, knees extended, ankles plantar flexed.

Explanation & sources

Explanation

Swayback (A) has decreased lumbar lordosis and a posterior pelvic tilt. Kypholordotic (B) has a forward head and rounded upper back. Flatback (C) has a flattened lumbar curve.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 5, slides 22-23
Lecture slide (1)
Week 2 · Written Review deck · slide 9
100Postural types

Which occurs in military-bearing posture?

Ans: Military bearing → anterior pelvic tilt → increased lumbar lordosis

Why: Military-bearing posture has an increased lumbar lordosis with an anterior pelvic tilt.

Explanation & sources

Explanation

A: the thoracic spine is normal, not decreased. C: the head is tilted posteriorly, not anteriorly. D: the posture is upright ('chest out'), not leaning forward.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 25-26
Lecture slide (1)
Week 2 · Written Review deck · slide 9
101asked 2×Postural types

Which of the following does NOT describe military-bearing posture?

Ans: Military: head back, ↑ lumbar lordosis, knees extended; C/T spine normal → no ↑ kyphosis

Why: In military-bearing posture the cervical and thoracic spine are described as normal, so increased thoracic kyphosis does not fit.

Explanation & sources

Explanation

Head tilted posteriorly (A), increased lumbar lordosis (B) and knees extended (C) are all features of military-bearing posture.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 30-31
  • 2022 TA Review - Exam 1 · TA review · slides 24-25
Lecture slide (1)
Week 2 · Written Review deck · slide 9
102Postural types

What are characteristics of the military-bearing posture? (Select all that apply.)

Ans: Military: head back, chest elevated, ↑ lordosis, anterior tilt, knees extended, ankles plantar flexed

Why: Military bearing: head tilted posteriorly, chest elevated with anterior cervical and posterior thoracic deviation, increased lumbar lordosis, anterior pelvic tilt, knees extended, ankles plantar flexed.

Explanation & sources

Explanation

C, D and F are each reversed: the lumbar lordosis is increased, the pelvis tilts anteriorly, and the ankles are plantar flexed (not dorsiflexed).

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 49-50
Lecture slide (1)
Week 2 · Written Review deck · slide 9
103Postural types

Match each description to the correct posture (flat back, military-bearing, anterior postural deviation, swayback, posterior postural deviation): (1) body deviates anteriorly, weight supported by the metatarsals; (2) increased cervical lordosis, slight upper thoracic kyphosis, flattening in the lower thoracic and lumbar spine; (3) anterior cervical and posterior thoracic deviation, increased lumbar lordosis, anterior pelvic tilt, ankles plantar flexed; (4) body deviates posteriorly, balance kept by anterior thrust of the pelvis, increased lordosis from the mid-thoracic spine down; (5) increased cervical and thoracic curves, decreased lumbar lordosis, posterior pelvic tilt, hyperextended hips and knees.

AnswerFlat back = 2; Military-bearing = 3; Anterior postural deviation = 1; Swayback = 5; Posterior postural deviation = 4

Ans: Metatarsals → anterior; flat lumbar → flat back; plantar flexion → military; pelvic thrust → posterior; hyperextension → sway

Why: Key features: anterior deviation = weight on the metatarsals; flat back = flattened lumbar curve; military = chest up, increased lordosis, ankles plantar flexed; posterior deviation = anterior pelvic thrust; swayback = decreased lordosis, hyperextended hips and knees.

Explanation & sources

Explanation

Swayback and posterior deviation both push the pelvis forward. Swayback has a decreased lumbar curve, while posterior deviation has marked lordosis from the mid-thoracic spine down.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 35-36
Lecture slide (1)
Week 2 · Written Review deck · slide 9

2.7 · 9 questions · Questions 104–112

Muscles in posture

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Postures are held by a pattern of tight/overactive (hypertonic, shortened) muscles that need stretching and inhibited/weakened muscles that need strengthening. Learn the two course slides below, which take priority over the textbook table when they differ.

PostureTight / overactiveInhibited / weakened
Sway backRectus abdominis, hamstrings, TFL/ITBAbdominal obliques, iliopsoas, multifidus, thoracic extensors, glutei
Flat backRectus abdominis (normal or tight), gluteiBack extensors, multifidus, iliacus, and psoas (2026 Canvas correction: psoas is long and weak, not tight)

The rectus abdominis is tight in both; the glutei are the key difference (tight in flat back, weak in sway back). Tight hamstrings pull the pelvis into posterior tilt → sway back. Muscles like the pectoralis major are not on either list (they shorten in kyphotic and forward-head postures).

Textbook Table 15-1 (shortened / weakened):

PostureShortenedWeakened
Forward headLevator scapulae, SCM, scalenes, suboccipitals, upper trapezius, pec major/minorHyoids, lower cervical and thoracic erector spinae, middle/lower trapezius, rhomboids
Sway backUpper abdominals, internal intercostals, hip extensors, lower lumbar extensorsLower abdominals, lower thoracic extensors, hip flexors
LordoticLumbar extensors, hip flexorsAbdominals
KyphoticIntercostals, pec major, serratus anterior, levator scapulae, upper trapeziusThoracic erector spinae, rhomboids, middle/lower trapezius
Flat backAbdominals, hip extensorsLumbar extensors, hip flexors
Flat upper backThoracic erector spinae, scapula retractorsScapula protractors, anterior intercostals

Weak abdominals let tight hip flexors tip the pelvis into anterior tilt → the lordotic (kyphosis-lordosis) posture.

Lecture slides for this section (3)
Written Review slide 13: sway back muscles
IA2 slide 18: flat back muscles (with the Canvas correction)
IA2 slide 16: Table 15-1
104top 215asked 7×2026Muscles in posture

You are examining a patient with the posture pictured in this diagram. Which muscle(s) would you expect to be hypertonic?

Ans: Sway-back → posterior pelvic tilt, hyperextended hips → tight hamstrings (+ rectus abdominis, TFL)

Why: In sway-back the tight/overactive muscles are the rectus abdominis, hamstrings and TFL/ITB. Tight hamstrings hold the pelvis in posterior tilt.

Explanation & sources

Explanation

The thoracic extensors (B), iliopsoas (C) and glutei (E) are the inhibited/weakened muscles in sway-back, along with the obliques and multifidus. The cervical extensors (A) are not on the sway-back list.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 31-32
  • 2026 OMM1 IA2 Gross Motion (Poll Everywhere) · In-class poll · slides 22-23
  • 2025 (PE) IA 2 - Gross motion · In-class poll · slides 30-35
  • 2024 IA 2 - Gross motion · In-class poll · slides 15-16
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 34-35
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slide 35
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 54-55
Lecture slide (1)
Week 2 · Written Review deck · slide 13
105Muscles in posture

What muscles are tight/overactive in swayback posture?

AnswerRectus abdominis, hamstrings and TFL/ITB (weak: abdominal obliques, iliopsoas, multifidus, thoracic extensors, glutei).

Ans: Sway-back tight: rectus abdominis, hamstrings, TFL/ITB

Why: Sway-back tight/overactive: rectus abdominis, hamstrings, TFL/ITB. Weak: obliques, iliopsoas, multifidus, thoracic extensors, glutei.

Explanation & sources

Explanation

Memory aid: in sway-back the pelvis tucks (posterior tilt) and the hips hyperextend, so the muscles pulling the pelvis down in back (hamstrings) and up in front (rectus abdominis) are short.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 20-21
Lecture slide (1)
Week 2 · Written Review deck · slide 13
106asked 2×Muscles in posture

Which muscle is inhibited/weakened in sway back?

Ans: Sway-back weak list: obliques, iliopsoas, multifidus, thoracic extensors, glutei → glutei

Why: The glutei are on the sway-back inhibited/weakened list.

Explanation & sources

Explanation

Hamstrings (B) and rectus abdominis (C) are tight/overactive in sway-back. The quadriceps (D) are not on either list.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 33-34
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 29-30
Lecture slide (1)
Week 2 · Written Review deck · slide 13
107Muscles in posture

Which of the following muscles is NOT affected in swayback posture?

Ans: Sway-back lists: tight RA, hamstrings, TFL; weak obliques, iliopsoas, glutei → pec major not listed

Why: The pectoralis major is not on either sway-back list. It shortens in kyphotic and forward-head postures.

Explanation & sources

Explanation

Rectus abdominis (A) and hamstrings (C) are tight in sway-back. Iliopsoas (B) and abdominal obliques (E) are weakened.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 37-38
Lecture slides (2)
Week 2 · Written Review deck · slide 13
Week 2 · IA2 Gross Motion · slide 16
108asked 2×Muscles in posture

Which muscles are shortened in flat back?

Ans: Flat back (Table 15-1) → shortened abdominals + hip extensors

Why: Per the postural table, flat back shortens the abdominals and hip extensors. The lumbar extensors and hip flexors are weakened.

Explanation & sources

Explanation

A is forward head posture. B is flat upper back posture. C is sway-back posture.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 28-29
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 27-28
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 16
Week 2 · IA2 Gross Motion · slide 18
109Muscles in posture

While walking to the market, a student notices a man at the bus stop with a flat-back posture. Which muscles would be inhibited/weakened by this posture?

Ans: Flat back weak: back extensors, multifidus, iliacus + psoas (long & weak per Canvas correction)

Why: In flat back the back extensors are inhibited/weakened. Per the course's Canvas correction, the psoas is also long and weak (the postural table lists hip flexors as weakened).

Heads up: The 2023 TA key marks only C (back extensors) and treats the psoas as tight, following the original slide. The 2026 Canvas correction says the flat-back psoas is LONG and WEAK, so B and C are both correct.

Explanation & sources

Explanation

Rectus abdominis (A) is normal or tight in flat back, together with the glutei.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 37-38
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 18
Week 2 · IA2 Gross Motion · slide 16
110asked 2×Muscles in posture

Which of the following is a correct description of what you would expect to find in flat-back or sway-back posture?

Ans: Flat back → weak back extensors (lumbar curve lost) → A

Why: In flat back the back extensors are weak, along with the multifidus and iliacus, so the lumbar curve flattens.

Explanation & sources

Explanation

B: the glutei are tight, not weak, in flat back. C: the glutei are weak, not tight, in sway-back. D: the hamstrings are tight, not weak, in sway-back. E: the rectus abdominis is normal or tight in flat back.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 262-263
  • 2020 TA Review Exam 1 · TA review · slides 254-255
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 18
Week 2 · Written Review deck · slide 13
111Muscles in posture

Hypertonic muscles can cause asymmetry. What muscles would be hypertonic in a flat back compared with a sway back postural alignment?

AnswerFlat back: rectus abdominis and glutei (psoas is long and weak). Sway back: rectus abdominis, hamstrings, TFL/ITB.

Ans: Flat back tight: RA + glutei; sway back tight: RA + hamstrings + TFL

Why: Flat back hypertonic: rectus abdominis and glutei; weak: back extensors, multifidus, iliacus and psoas. Sway back hypertonic: rectus abdominis, hamstrings, TFL/ITB; weak: obliques, iliopsoas, multifidus, thoracic extensors, glutei.

Heads up: The TA key lists the psoas as hypertonic in flat back, following the original slide. The 2026 Canvas correction says the flat-back psoas is long and weak, so it is left out here.

Explanation & sources

Explanation

The rectus abdominis is tight in both. The glutei are the key difference: tight in flat back, weak in sway back.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 34-35
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 18
Week 2 · Written Review deck · slide 13
112Muscles in posture

Bonus: Which posture would present with tight hamstrings? Which with weak abdominal muscles?

AnswerTight hamstrings: sway-back (posterior pelvic tilt; also rectus abdominis and TFL tight). Weak abdominals: lordotic (kyphosis-lordosis) posture with anterior pelvic tilt and tight hip flexors and lumbar extensors.

Ans: Hamstrings pull pelvis into posterior tilt → sway-back; weak abs let pelvis tip forward → lordotic

Why: Tight hamstrings pull the pelvis into posterior tilt, as in sway-back. Weak abdominals let tight hip flexors tip the pelvis into anterior tilt, the lordotic (kyphosis-lordosis) pattern.

Explanation & sources

Explanation

From the postural table: lordotic posture has shortened lumbar extensors and hip flexors with weakened abdominals; sway-back has weakened lower abdominals and shortened hip extensors.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 31-32
Lecture slides (2)
Week 2 · IA2 Gross Motion · slide 16
Week 2 · Written Review deck · slide 13

Week 3 · 82 questions

Somatic Dysfunction

Questions 113–194

12 sections in this week
  1. 3.1Definition & TART
  2. 3.2Acute vs chronic
  3. 3.3Red reflex
  4. 3.4Barriers
  5. 3.5Fryette's principles
  6. 3.6Type I vs Type II
  7. 3.7Type I/II notation
  8. 3.8Naming for freedom
  9. 3.9Palpation to diagnosis
  10. 3.10Mechanism of injury
  11. 3.11Direct vs indirect
  12. 3.12Related topics

3.1 · 9 questions · Questions 113–121

Definition & TART

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Learn firstWhat you need for 3.1

Somatic dysfunction (SD) is an impaired or altered function of related components of the somatic (body framework) system: skeletal, arthrodial (joint) and myofascial structures, plus their related vascular, lymphatic and neural elements. It is not the red reflex, not a vasodilation response, and not “the direction of freer motion” (that is how an SD is named).

SD is diagnosed with the TART criteria (letter order varies by source; the four findings never change):

LetterFindingNot to be confused with
TTissue texture change (warmth, edema, bogginess, ropiness...)Inflammation or arthritis (diagnoses, not palpatory criteria)
AAsymmetryAtrophy
RRestriction of motionRedness / red reflex (a separate special test)
TTenderness—

Because restriction is a criterion, full range of motion is not a finding of SD (in acute SD range may not be clearly reduced, but motion feels sluggish).

Two true facts: a region can have more than one SD at a time (e.g. a Type II at the apex or end of a Type I group curve; treat the Type II first). And the body compensates for SDs over time: chronic SD shows asymmetry with compensation in other areas, while acute SD is segmental without much compensation yet.

Lecture slide for this section (1)
Written Review slide 15: TART
113top 215asked 5×Definition & TART

Which of the following best defines somatic dysfunction?

Ans: Somatic dysfunction → impaired/altered function of somatic framework → D

Why: Somatic dysfunction is an impaired or altered function of related components of the somatic framework: skeletal, arthrodial and myofascial structures plus their related vascular, lymphatic and neural elements.

Explanation & sources

Explanation

B is the definition of the red reflex (erythema test), not of somatic dysfunction. A is wrong because the sympathetic response in SD causes vasoconstriction, not vasodilation. C describes the freedom of motion, which is how an SD is named, not what an SD is. The term 'somatic dysfunction' replaced 'osteopathic lesion' in 1968.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 41-42
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 34-35
  • 2022 TA Review - Exam 1 · TA review · slides 29-30
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 39-40
  • 2020 TA Review Exam 1 · TA review · slides 42-43
Lecture slide (1)
Week 3 · Written Review deck · slide 15
114asked 3×Definition & TART

What does TART stand for?

AnswerTissue texture change, Asymmetry, Restriction of motion, Tenderness.

Ans: TART → the four objective findings used to diagnose somatic dysfunction

Why: TART lists the objective findings that diagnose somatic dysfunction: Tissue texture change, Asymmetry, Restriction of motion, Tenderness.

Explanation & sources

Explanation

The letter order varies between sources (some start with Tenderness), but the four findings are always the same. Common wrong substitutions are 'Atrophy' for Asymmetry and 'Redness' for Restriction. The red reflex is a special test, not a TART criterion.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 36-37
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 32-33
  • 2022 TA Review - Exam 1 · TA review · slides 19-20
Lecture slide (1)
Week 3 · Written Review deck · slide 15
115Definition & TART

What is the correct form of the TART acronym?

Ans: TART → Tenderness, Asymmetry, Restriction, Tissue texture → E

Why: The A is Asymmetry and the R is Restricted motion, so only E is correct.

Explanation & sources

Explanation

Any option with 'Atrophy' or 'Redness' is wrong. Redness belongs to the red reflex test, and atrophy is not one of the four criteria. B and D are identical distractors that both swap in Redness.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 63-64
Lecture slide (1)
Week 3 · Written Review deck · slide 15
116Definition & TART

What is not found in the acronym TART?

Ans: TART = tissue texture, asymmetry, restriction, tenderness → atrophy absent → A

Why: The A in TART is Asymmetry, not atrophy.

Explanation & sources

Explanation

Asymmetry, restricted motion, tenderness and tissue texture changes are the four TART findings. Atrophy is a common trap because it also starts with A.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 49-50
Lecture slide (1)
Week 3 · Written Review deck · slide 15
117Definition & TART

Which of these is not correctly categorized as a TART sign?

Ans: TART's R = Restriction of motion, not Red reflex → C

Why: The R in TART is Restriction of motion. The red reflex is a separate special test used to judge acute vs chronic SD.

Explanation & sources

Explanation

Tenderness, asymmetry and tissue texture change are all TART criteria. Normal skin gets initial redness that fades quickly; lingering redness suggests acute SD and early blanching suggests chronic SD.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 43-44
Lecture slides (2)
Week 3 · Written Review deck · slide 15
Week 3 · Written Review deck · slide 20
118asked 3×Definition & TART

Which of the following findings is a diagnostic characteristic of somatic dysfunction?

Ans: Diagnostic characteristics = TART → tissue texture changes → B

Why: Tissue texture change is the first T of TART.

Explanation & sources

Explanation

Full range of motion is the opposite of the R (restriction). Inflammation and arthritis are diagnoses, not palpatory TART criteria. Warmth, edema and bogginess are examples of tissue texture change.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 31-32
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 36-37
  • 2020 TA Review Exam 1 · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 15
119top 215asked 8×2026Definition & TART

Which of the following findings is not a diagnostic characteristic of somatic dysfunction?

Ans: TART includes Restriction → full ROM is not SD → D

Why: Somatic dysfunction requires restriction of motion (the R in TART), so full range of motion is not a finding of SD.

Explanation & sources

Explanation

Edema and temperature change are both tissue texture changes (the first T). Tenderness and asymmetry are the other two TART criteria. Note that in acute SD range may not be clearly restricted but feels sluggish.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 35-36
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 7-10
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 13-15
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 11-12
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 39-40
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 39-40
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 50-51
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 74-75
Lecture slide (1)
Week 3 · Written Review deck · slide 15
120Definition & TART

True or false when referring to a somatic dysfunction? Patients can only have one SD per body part.

Ans: Type II can sit inside a Type I curve → multiple SDs possible → False

Why: A region can have more than one SD at once. A classic example is a Type II dysfunction at the apex or end of a Type I group curve.

Explanation & sources

Explanation

Because Type II and Type I can coexist, you must decide which to treat first. The course rule is to treat the Type II dysfunction before the Type I curve.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 18
121Definition & TART

True or false when referring to a somatic dysfunction? The body can compensate for them after a while.

Ans: Long-standing SD → body adapts → compensation elsewhere → True

Why: Over time the body compensates for an SD. Chronic SD typically shows asymmetry with noticeable compensation in other areas.

Explanation & sources

Explanation

Acute SD tends to be segmental without much compensation yet. Type I group curves are often compensatory, forming gradually.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 16

3.2 · 16 questions · Questions 122–137

Acute vs chronic

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Learn firstWhat you need for 3.2

Acute vs chronic SD is a favorite exam topic. Think of two pictures: acute = inflamed (warm, wet, boggy, red, sharp pain, hypertonic) and chronic = fibrosed (cool, dry, ropy, doughy, dull ache, decreased tone).

AcuteChronic
HistoryRecent injuryLong-standing impairment
Pain / tendernessSharp, severe; more tenderDull ache (sometimes burning); less tender. “Radiating” pain suggests a nerve root, not SD
SkinWarm, moist, red (rubor), inflamedCool, dry (↓ sweating), scaly, pale, itchy, thin, pigment change
Red reflexRedness lingersRedness then early blanching
MuscleHypertonic (↑ tone)Contracture but decreased tone: mushy, flaccid, fibrotic, ropy, atrophic
TissueBoggy, edematous, congestedDoughy: chronic congestion from a poor lymphatic pump; little or no edema
MotionRange not always restricted but sluggish; painful restrictionLimited ROM from contracture/fibrosis; restriction with little or no pain
VisceralSomatovisceral effects minimalSomatovisceral effects common
CompensationSegmental, little compensationCompensation in other areas

Traps: boggy (acute edema) vs doughy (chronic congestion). Chronic SD does not usually involve swelling. Chronic muscle is not hypertrophied. Mixed options like “cold and boggy” are wrong. Paresthesia and itching-only answers are not acute tissue findings.

Lecture slide for this section (1)
Written Review slide 16: acute vs chronic findings
122Acute vs chronic

You palpate a patient's paraspinal muscles and notice bogginess, edema, tenderness, and warmth. Which best describes this dysfunction?

Ans: Boggy, edematous, tender, warm → acute tissue findings → A

Why: Boggy, edematous, warm and more tender tissue is the acute pattern.

Explanation & sources

Explanation

Chronic SD feels cool, dry, ropy/fibrotic and less tender. Type I and Type II describe spinal mechanics, not tissue quality. A viscerosomatic reflex can produce acute-looking changes, but the question asks what describes the palpatory finding itself.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 47-48
Lecture slide (1)
Week 3 · Written Review deck · slide 16
123top 215asked 3×Acute vs chronic

What changes take place in an acute somatic dysfunction?

Ans: Acute → inflammation, fluid → boggy, edematous, congested → C

Why: Acute SD tissues are boggy, edematous and congested from the vascular and chemical changes of injury.

Explanation & sources

Explanation

Cool dry skin (A), mushy/flaccid/ropy muscle (B) and common somatovisceral effects (D) are all chronic findings. In acute SD somatovisceral effects are minimal.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 27-28
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 31-32
  • 2020 TA Review Exam 1 · TA review · slides 33-35
Lecture slide (1)
Week 3 · Written Review deck · slide 16
124top 215asked 2×2026Acute vs chronic

A 50-year-old male with no history of low back pain presents with acute low back pain after gardening for several hours yesterday. Structural examination reveals tissue texture changes to the right lumbar paraspinal region. Which of the following would most likely be appreciated at this time?

Ans: Yesterday's injury → acute SD → muscle hypertonia → B

Why: Acute SD musculature shows hypertonicity, along with warm moist skin, boggy edema and sharp pain.

Explanation & sources

Explanation

Cool dry skin, fibrosis and itchy skin are chronic changes. Paresthesia is a nerve symptom, not a tissue texture finding of SD.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.12 Q1 (answer key p.16)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 1 (answer slide 2); textbook TB_Basics.pdf p.12 Q1
Lecture slide (1)
Week 3 · Written Review deck · slide 16
125Acute vs chronic

Your gym friend is complaining about muscle pain and asks you for help. You begin with palpation and decide that it is an acute change. How would you describe an acute change in musculature?

Ans: Acute → warm (inflamed) + boggy (edema) → C

Why: Acute tissue is warm and boggy.

Explanation & sources

Explanation

Cold, firm, mushy and dry are chronic descriptors. E mixes a chronic temperature (cold) with an acute texture (boggy). Remember: acute = warm, moist, boggy, red; chronic = cool, dry, ropy, fibrotic.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 138-139
Lecture slide (1)
Week 3 · Written Review deck · slide 16
126Acute vs chronic

Which of the following correctly describes an acute change to musculature?

Ans: Acute → inflammation → redness (rubor) → D

Why: Rubor (redness) reflects the inflammatory, vasodilated state of acute SD.

Explanation & sources

Explanation

Ropiness, dryness, coolness and firmness all describe chronic tissue. Acute skin is warm, moist and shows a prolonged red reflex.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 164-165
Lecture slide (1)
Week 3 · Written Review deck · slide 16
127top 215asked 7×2026Acute vs chronic

What changes take place in chronic somatic dysfunctions?

Ans: Chronic → fibrosis replaces muscle → contracture with decreased tone → E

Why: In chronic SD, fibrotic tissue replaces contractile muscle, producing contracture (fixed shortening) with decreased tone that feels mushy, ropy and fibrotic.

Explanation & sources

Explanation

Warmth, sharp pain and boggy edema are acute findings. Chronic muscle is not hypertrophied; tone is decreased. Chronic ROM is limited because of the contracture or fibrosis.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 33-34
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 14-17 (answer slide 17 is hidden)
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 3-5
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 2-3
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 37-38
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 37-38
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 65-66
Lecture slide (1)
Week 3 · Written Review deck · slide 16
128top 215asked 3×Acute vs chronic

What changes occur in chronic somatic dysfunctions?

Ans: Chronic → poor lymphatic pump → chronic congestion → doughy → C

Why: Chronic tissues feel doughy from chronic congestion and a poor lymphatic pump.

Explanation & sources

Explanation

Sharp pain, warm moist skin and hypertonic muscle are acute findings. Chronic muscle has decreased tone. Do not confuse doughy (chronic congestion) with boggy (acute edema).

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 29-30
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 33-34
  • 2020 TA Review Exam 1 · TA review · slides 34-36
Lecture slide (1)
Week 3 · Written Review deck · slide 16
129top 215asked 2×2026Acute vs chronic

A 60-year-old female presents for a general wellness examination. She denies any complaints and has no noticeable limitations to range of motion by routine musculoskeletal examination. However, focused osteopathic structural examination reveals somatic dysfunction of T1-T2 on the left, and fibrotic muscles with decreased tension. Which of the following is most associated with this type of somatic dysfunction?

Ans: Fibrotic, decreased tone → chronic SD → cool, dry skin → A

Why: Fibrosis with decreased tone means chronic SD, which goes with cool, dry skin.

Explanation & sources

Explanation

Sharp pain, erythema and moist boggy tissue are acute findings. Segmental asymmetry without compensation also suggests acute SD; chronic SD shows compensation elsewhere.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.12 Q2 (answer key p.16)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 3 (answer slide 4); textbook TB_Basics.pdf p.12 Q2
Lecture slide (1)
Week 3 · Written Review deck · slide 16
130Acute vs chronic

A 22-year-old male presents with a 7-month history of right-sided back pain that worsens after prolonged standing. On exam, you find tissue texture changes including cool temperature, ropy and fibrotic consistency, and decreased tenderness over the right paraspinal muscles. Which of the following best describes the pain associated with this type of somatic dysfunction?

Ans: 7 months + cool, ropy, less tender → chronic → dull ache → A

Why: Chronic SD pain is a dull ache (sometimes burning), less intense than acute pain.

Explanation & sources

Explanation

Sharp, severe pain is acute. Throbbing and radiating pain are not the textbook SD descriptors. Burning appears in some chronic lists but 'radiating' suggests nerve root pain.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 45-46
Lecture slide (1)
Week 3 · Written Review deck · slide 16
131asked 2×Acute vs chronic

Which of the following is NOT an example of a chronic somatic dysfunction of the shoulder?

Ans: Moist, edematous, erythematous, boggy → acute, not chronic → C

Why: Moist, edematous, erythematous, boggy tissue is the acute picture.

Explanation & sources

Explanation

Little or no temperature rise, compensation in other areas, and restriction with little or no pain all fit chronic SD. TAs flagged acute vs chronic as a favorite exam topic.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 64-65
  • 2022 TA Review - Exam 1 · TA review · slides 31-32
Lecture slide (1)
Week 3 · Written Review deck · slide 16
132Acute vs chronic

True or false when referring to a somatic dysfunction? Chronic SDs usually involve swelling.

Ans: Swelling/edema → acute; chronic → decreased or no edema → False

Why: Edema is an acute finding. Chronic SD has decreased or no edema; its tissues feel doughy from chronic congestion instead.

Explanation & sources

Explanation

Acute tissues are boggy and edematous. Chronic tissues are cool, dry, ropy and fibrotic.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 16
133Acute vs chronic

Which of the following are correctly matched between acute/chronic somatic dysfunctions and their findings? (There may be more than one correct.)

Ans: Sharp pain + hypertonia = acute; mushy, ropy, low tone = chronic → A and F

Why: Acute SD has sharp, severe pain with hypertonic muscle. Chronic SD has decreased tone that feels mushy, fibrotic and ropy.

Explanation & sources

Explanation

B (dull ache) and C (doughy, poor lymphatic pump) are chronic findings mislabeled as acute. D (warm, moist, red reflex) and E (boggy, edematous) are acute findings mislabeled as chronic.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 51-52
Lecture slide (1)
Week 3 · Written Review deck · slide 16
134Acute vs chronic

Compare and contrast acute vs chronic somatic dysfunction findings: tenderness, tissue texture changes, moist or dry, temperature, red reflex/erythema test.

AnswerAcute: more tender; hypertonic, boggy, edematous; moist; warm; redness lingers. Chronic: less tender; atrophic, fibrotic, ropy; dry; cool; early blanching.

Ans: Acute = inflamed (warm, wet, boggy, red) vs chronic = fibrosed (cool, dry, ropy, blanching)

Why: Acute findings come from inflammation (vasoactive mediators, edema). Chronic findings come from long-standing sympathetic vasoconstriction and fibrosis.

Explanation & sources

Explanation

Learn the table as two pictures rather than isolated facts. Acute pain is sharp and severe; chronic pain is a dull ache. Somatovisceral effects are minimal in acute SD and common in chronic SD.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 40-41
Lecture slides (2)
Week 3 · Written Review deck · slide 16
Week 3 · IA3 Somatic Dysfunction · slide 26
135Acute vs chronic

Match each finding to acute or chronic somatic dysfunction: A. Boggy on palpation; B. Doughy on palpation; C. Dull ache, burning pain; D. Sharp, severe pain; E. Skin is scaly and dry; F. Skin has an acute red reflex; G. Fibrotic; H. Congested soft tissue.

AnswerAcute: A, D, F, H. Chronic: B, C, E, G.

Ans: Boggy/sharp/red/congested → acute; doughy/dull/scaly/fibrotic → chronic

Why: Acute: boggy, sharp severe pain, acute red reflex, congested (edematous) soft tissue. Chronic: doughy, dull ache, scaly dry skin, fibrosis.

Explanation & sources

Explanation

The tricky pair is boggy vs doughy: boggy is acute edema, doughy is chronic congestion from a poor lymphatic pump. 'Congested soft tissue' is listed with boggy and edematous on the acute side of the course table.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 36-37
Lecture slide (1)
Week 3 · Written Review deck · slide 16
136Acute vs chronic

Match each finding with acute or chronic somatic dysfunction: edematous/erythematous/boggy tissues; increased tissue moisture, warmth; hypertonic muscles; painful restriction with movement; severe and sharp tenderness; cool, dry skin with slight tension; decreased or no edema; decreased muscle tone, flaccid, fibrotic, ropy; restriction with decreased or no pain; dull, achy, or burning tenderness.

AnswerAcute: edematous/erythematous/boggy; moist, warm; hypertonic; painful restriction; sharp severe tenderness. Chronic: cool dry skin; little or no edema; decreased tone, flaccid, fibrotic, ropy; painless restriction; dull, achy, burning tenderness.

Ans: First five findings → acute; last five findings → chronic

Why: The list splits cleanly: the first five are acute (inflamed, painful) and the last five are chronic (cool, fibrotic, less painful).

Explanation & sources

Explanation

Restriction occurs in both, but acute restriction is painful while chronic restriction has little or no pain. Muscle tone is increased (hypertonic) in acute and decreased in chronic SD.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slide 110
Lecture slide (1)
Week 3 · Written Review deck · slide 16
137Acute vs chronic

Label the following somatic dysfunction findings as acute or chronic: sharp severe pain with hypertonic musculature; dull ache, burning pain; tissue congestion, doughy tissues, poor lymphatic pump; skin warm, moist, acute red reflex; boggy, edematous, congested soft tissue; common to have somatovisceral effects; sluggish mobility; limited ROM due to contracture or fibrosis; skin cool, dry, scaly, pale, itchy, pigmentation change; decreased muscle tone, mushy/flaccid, ropy, fibrotic.

AnswerAcute: sharp pain with hypertonia; warm moist skin with red reflex; boggy edematous tissue; sluggish mobility. Chronic: dull/burning ache; doughy congestion; common somatovisceral effects; contracture-limited ROM; cool dry scaly skin; decreased tone, ropy.

Ans: Inflamed, sluggish → acute; doughy, fibrotic, visceral effects → chronic

Why: Sluggish mobility (range not always restricted) is acute, while ROM limited by contracture or fibrosis is chronic. Somatovisceral effects are common in chronic and minimal in acute SD.

Explanation & sources

Explanation

Acute red reflex: local bradykinin and histamine override sympathetic vasoconstriction, so redness lingers. Chronic red reflex: initial redness then blanching before the surrounding skin.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 65-66
Lecture slides (2)
Week 3 · Written Review deck · slide 16
Week 3 · IA3 Somatic Dysfunction · slide 26

3.3 · 3 questions · Questions 138–140

Red reflex

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The red reflex (erythema test): stroke the paraspinal skin firmly with two finger pads and watch how the redness behaves compared with the surrounding skin. Normal skin reddens briefly and fades.

Acute SDChronic SD
What you seeRedness that remains longer than the rest of the areaInitial redness, then blanching before the rest of the area blanches
MechanismIrritated skin releases bradykinin, histamine and other vasoactive mediators → hyperemia. Sympathetic outflow is increased, but the region is facilitated (lowered threshold) and over-responds, so the local mediators winLong-standing hypersympathetic tone → vasoconstriction (the chemical mediation is long gone) → ↓ blood flow; fibrosis, ↓ circulation, ↓ local response, trophic changes

Decide acute vs chronic from the history: scoliosis diagnosed 12 years ago or 30 years of smoking/COPD = chronic (expect blanching and chronic tissue such as fibrotic, ropy muscle). A box-lifting injury yesterday = acute (lingering redness). An acute red reflex can also come from an acute visceral problem at that segment (viscerosomatic reflex).

Lecture slides for this section (2)
IA3 slide 26: acute red reflex
IA3 slide 27: chronic red reflex
138top 215asked 3×Red reflex

A new 22-year-old patient presents for a comprehensive history and physical. If the patient has a history of scoliosis, diagnosed at age 10, what would their red reflex look like?

Ans: 12-year history → chronic → early blanching → D

Why: A 12-year-old problem is chronic, and the chronic red reflex is initial redness followed by blanching before the surrounding skin.

Explanation & sources

Explanation

Lingering redness indicates acute SD, so B pairs the wrong response with chronic. A and C pair the responses with acute. Chronic blanching comes from long-standing hypersympathetic vasoconstriction and fibrosis.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 38-39
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 43-44
  • 2020 TA Review Exam 1 · TA review · slides 46-47
Lecture slide (1)
Week 3 · IA3 Somatic Dysfunction · slide 27
139Red reflex

A patient presents with shortness of breath due to COPD. He has been smoking 1 pack a day for the last 30 years. You perform a red reflex test on his back as part of your osteopathic examination. What do you expect to find?

Ans: 30-year COPD → chronic viscerosomatic changes → only chronic option = fibrotic, ropy → C

Why: Long-standing COPD produces chronic segmental changes, and flaccid, fibrotic, ropy musculature is the only chronic finding offered.

Heads up: None of the options describes the chronic red reflex itself (redness, then early blanching). The key picks C because it is the only chronic finding listed.

Explanation & sources

Explanation

Prolonged redness (B) is the acute red reflex. Sharp pain, boggy tissue and minimal somatovisceral effects are all acute findings. The true chronic red reflex result would be early blanching.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 44-45
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 27
Week 3 · Written Review deck · slide 16
1402026Red reflex

A 34-year-old patient presents with acute thoracic back pain after lifting a heavy box. During physical examination, the physician runs a firm stroke with two finger pads along the paravertebral area (Red Reflex / Erythema Test). The test results in sustained, exaggerated redness in the T4–T6 region that lasts significantly longer than surrounding tissues. Which underlying mechanism best accounts for this palpatory finding?

Ans: Acute SD + lingering redness → local bradykinin/histamine override vasoconstriction → C

Why: In acute SD, bradykinin, histamine and other vasoactive mediators cause local hyperemia. The region is facilitated, so it overreacts to slight irritation and redness lasts longer.

Explanation & sources

Explanation

A, B, D and E describe chronic mechanisms: long-standing sympathetic vasoconstriction, fibrosis, poor lymphatic pump and blanching. Sympathetic outflow is increased in acute SD too, but the local mediators override it.

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  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 141 (answer slide 142)
Lecture slide (1)
Week 3 · IA3 Somatic Dysfunction · slide 26

3.4 · 4 questions · Questions 141–144

Barriers

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Motion barriers, from neutral outward:

Neutral Restrictive(only with SD) Physiologic Anatomic elastic zone Active range (patient moves) Passive range (physician moves)
BarrierDefinition
PhysiologicLimit of active motion (the patient moves on their own); springy end-feel; can be stretched past with a warm-up. Example: a healthy person sidebending the neck to 45°
ElasticSafe zone of passive stretch between the physiologic and anatomic barriers
AnatomicAbsolute limit of passive motion, set by bones and ligaments; hard end-feel (e.g. olecranon in elbow extension); forcing past it tears tissue
RestrictiveEarly, abnormal stop caused by somatic dysfunction, before the physiologic barrier. This is what OMT treats
PathologicPermanent, hard stop from tissue disease, bone spurs or joint damage; does not change easily with OMT

Disrupted vs created: when SD reduces active range (e.g. neck rotation limited by pain after a car accident), the normal physiologic barrier is the one disrupted; a restrictive barrier is what gets created. With SD present, motion stops early at the restrictive barrier. A firm stop that appears before the expected end of active motion is restrictive, even if the stem says going further would damage tissue.

Lecture slide for this section (1)
Written Review slide 21: motion barriers
141top 215asked 2×2026Barriers

A 20-year-old female presents for a general maintenance examination without complaints. Structural examination is negative for somatic dysfunction. The patient without a cervical somatic dysfunction actively sidebends her cervical spine to an endpoint of 45 degrees. This limit is most appropriately described as the

Ans: Active motion limit, no SD → physiologic barrier → C

Why: The physiologic barrier is the limit of active (patient-generated) motion.

Explanation & sources

Explanation

The anatomic barrier is the limit of passive motion set by bone and ligament. The elastic barrier is the zone of passive stretch between the physiologic and anatomic barriers. A restrictive barrier requires somatic dysfunction, which this patient lacks. 'Rotational barrier' is not a term.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.13 Q7 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 13 (answer slide 14); textbook TB_Basics.pdf p.13 Q7
Lecture slide (1)
Week 3 · Written Review deck · slide 21
142top 2152026Barriers

A physician performs passive motion testing on a patient's lumbar spine. Movement toward left sidebending meets a firm end-feel prior to reaching the expected limit of active movement, significantly shortening the patient's available range of motion. Passive movement beyond this newly encountered barrier is impossible without causing tissue damage. How should this new limit to motion be classified?

Ans: Early abnormal stop inside the active range → restrictive barrier → C

Why: A restrictive barrier is an early, abnormal stop caused by somatic dysfunction that lies before the physiologic barrier. It is what OMT treats.

Explanation & sources

Explanation

The anatomic barrier lies beyond the physiologic barrier, not before it, even though the stem's tissue-damage wording sounds anatomic. The physiologic barrier is the normal end of active motion. Neutral point shifting and hypermobility are not barrier types. A pathologic barrier (permanent stop from tissue disease, spurs or joint damage) is not offered.

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  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 147 (answer slide 148)
Lecture slide (1)
Week 3 · Written Review deck · slide 21
143top 2152026Barriers

A 22-year-old female presents to the office with the complaint of sharp, non-radiating pain at the base of her neck. She reports that she was a seatbelt-restrained driver in a motor vehicle accident 2 weeks ago and that she hit her head against the steering wheel. She denies any numbness, weakness, or paresthesias. Physical examination reveals that the patient can actively rotate her head 65° to the left and 75° to the right, limited by pain. The type of barrier that is most likely disrupted in this patient is

Ans: Active ROM reduced → normal physiologic barrier disrupted → restrictive barrier created → D

Why: Active motion ends at the physiologic barrier. When somatic dysfunction occurs, that normal barrier is disrupted and a restrictive (or pathologic) barrier is created in its place.

Explanation & sources

Explanation

Restrictive and pathologic barriers are what is created, not what is disrupted. An anatomic barrier disruption would mean torn ligament or fracture, and she has no neurologic signs. The elastic barrier is a passive zone that is not tested by active rotation.

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  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · · slide 65 (bottom)
Lecture slide (1)
Week 3 · Written Review deck · slide 21
144Barriers

Match each to A. Anatomical barrier, B. Physiological barrier, C. Restrictive barrier: (1) How far you can forward bend (or bend your knee) without an SD; (2) Limited by ligaments and bones; (3) How far you can sidebend your neck to the right after tweaking it.

Answer1-B (physiologic, springy end-feel); 2-A (anatomic, hard end-feel, e.g. olecranon in elbow extension); 3-C (restrictive).

Ans: Normal active limit = physiologic; bone/ligament limit = anatomic; SD limit = restrictive

Why: Physiologic = normal limit of active motion. Anatomic = absolute passive limit set by bones and ligaments. Restrictive = early stop caused by somatic dysfunction.

Explanation & sources

Explanation

Order from neutral outward in a healthy joint: physiologic barrier, then the elastic zone, then the anatomic barrier. An SD adds a restrictive barrier inside the physiologic range.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 43-44
Lecture slide (1)
Week 3 · Written Review deck · slide 21

3.5 · 8 questions · Questions 145–152

Fryette's principles

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Fryette's principles describe how the thoracic and lumbar spine couple sidebending and rotation. Rotation is named for where the anterior vertebral body turns (so the spinous process moves the opposite way).

Principle 1 = Type IPrinciple 2 = Type II
Spine positionNeutralNon-neutral: sufficiently flexed or extended
Which comes firstSidebending precedes rotationRotation (of one segment) precedes sidebending
CouplingRotation to the opposite side (toward the convexity)Rotation and sidebending to the same side (rotation into the concavity)
SegmentsGroup: two or moreSingle segment

Principle 3 (motion restriction) applies to the entire spine: moving a segment in one plane reduces its motion in the other two planes. Example: a flexed segment has less sidebending and rotation available.

Type II dysfunctions are found at the apex (mid-point) or extremes (ends) of Type I curves, at transitional areas, or by themselves. Clinical clues: sitting at a desk / neutral spine → Law I (one TA question describes the spinous processes in a way that technically gives same-side coupling, but it says neutral and is keyed Law I: let the stated position decide); acute lifting injury with the spine flexed and same-side coupling → Law II. Watch the wording: “opposite” coupling paired with flexion, or “same side” paired with neutral, mixes up the two laws.

Lecture slides for this section (2)
Written Review slide 17: Type I mechanics
Written Review slide 18: Type II mechanics and Law 3
145top 215asked 3×Fryette's principles

Fryette's principles define Type 1 Mechanics as:

Ans: Type 1 → neutral, sidebending first, rotation opposite → A

Why: Type I: from neutral, sidebending precedes rotation and rotation goes to the opposite side, involving two or more segments.

Explanation & sources

Explanation

B and C describe Type II dysfunction (traumatic, non-neutral). D is Fryette's third principle. In Type I, disc compression on the sidebent side pushes disc material to the other side, which rotates the bodies opposite.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 44-45
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 45-46
  • 2020 TA Review Exam 1 · TA review · slides 48-49
Lecture slide (1)
Week 3 · Written Review deck · slide 17
146asked 2×Fryette's principles

Which of the following statements concerning Fryette's law I is true?

Ans: Law I = neutral → sidebending and rotation opposite → C

Why: Fryette's first law: in neutral, sidebending and rotation occur to opposite sides.

Explanation & sources

Explanation

A is Law II (non-neutral, same side), not Law I. B wrongly pairs opposite-side coupling with flexion. D pairs neutral with same-side coupling, which mixes up the two laws.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 50-51
  • 2022 TA Review - Exam 1 · TA review · slides 35-36
Lecture slide (1)
Week 3 · Written Review deck · slide 17
147Fryette's principles

A 25-year-old man presents with low back stiffness after sitting at his desk for long hours. On exam, when his lumbar spine is in a neutral position, you notice that as you side bend him to the right, the spinous processes rotate toward the left. Which of Fryette's principles does this describe?

Ans: Neutral + sidebending with opposite rotation (intended) → Law I → A

Why: The question intends neutral coupling with rotation opposite the sidebending, which is Fryette's Law I.

Heads up: Wording flaw: if the spinous processes go left, the bodies rotate right, the same side as the sidebending. The TA key still marks Law I because the stem says neutral and means opposite-side coupling.

Explanation & sources

Explanation

Law II requires a flexed or extended (non-neutral) spine, as in an acute lifting injury. Law III says motion in one plane reduces motion in the other planes. Rotation is named for the anterior vertebral body, so spinous processes move opposite to the named rotation.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 54-55
Lecture slide (1)
Week 3 · Written Review deck · slide 17
148Fryette's principles

A 40-year-old woman presents with acute back pain after lifting a heavy box. Exam shows that when her lumbar spine is flexed, sidebending her to the right is accompanied by rotation to the right as well. Which Fryette's law best explains this coupled motion?

Ans: Flexed (non-neutral) + same-side coupling → Law II → B

Why: Fryette's Law II: in a non-neutral (flexed or extended) spine, rotation and sidebending occur to the same side.

Explanation & sources

Explanation

Law I is neutral with opposite-side coupling. Law III states that motion in one plane reduces motion in the other planes. Acute lifting injuries typically produce Type II dysfunctions.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 52-53
Lecture slide (1)
Week 3 · Written Review deck · slide 18
149top 215asked 2×2026Fryette's principles

A 20-year-old female presents for a general maintenance examination without complaints. Structural examination is negative for somatic dysfunction. The examiner evaluates the physiologic motion of T3 on T4. Which of the following most accurately describes this segment's Fryette Type 2 mechanics?

Ans: Type 2 → sufficiently flexed/extended → same-direction coupling → E

Why: Type II mechanics: with sufficient flexion or extension, a single segment sidebends and rotates to the same side (rotation into the concavity).

Explanation & sources

Explanation

A is Fryette's third principle. B correctly describes Type I, not Type II. C and D mismatch the position and the coupling direction.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.13 Q8 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 15 (answer slide 16); textbook TB_Basics.pdf p.13 Q8
Lecture slide (1)
Week 3 · Written Review deck · slide 18
150asked 2×Fryette's principles

Which of these Fryette's Principles are correctly matched?

Ans: Second principle = non-neutral, rotation first, same side → B

Why: The second principle (Type II) is non-neutral, rotation precedes sidebending, and both go to the same side.

Explanation & sources

Explanation

A gives the third principle's text with the label 'first'. C gives the first principle's text with the label 'third'. Order: 1 = neutral/opposite, 2 = non-neutral/same, 3 = motion in one plane affects the others.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 67-68
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 55-56
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 18
151top 215Fryette's principles

What does Fryette's third principle of spinal mechanics state?

Ans: Third principle → motion in one plane limits the other planes → A

Why: Fryette's third principle: moving a segment in one plane reduces its motion in the other two planes. Example: a flexed segment has less sidebending and rotation.

Explanation & sources

Explanation

C is the second principle (Type II) and D is the first (Type I). B is a vague statement, not a Fryette principle. The third principle applies to the entire spine.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 47-48
Lecture slide (1)
Week 3 · Written Review deck · slide 18
152Fryette's principles

Fill in the blanks for Fryette's Principles: (1) Principle 1/Type 1 SD: sidebending/rotation precedes sidebending/rotation, and they are in the same/opposite directions. (2) Principle 2/Type 2 SD: found at the ____ and/or ____ of type 1 curves. (3) Principle 3: if a vertebral unit was flexed, its range of sidebending and rotation would/would not be reduced.

Answer(1) Sidebending precedes rotation; opposite directions. (2) Apex and/or extremes (ends) of Type 1 curves. (3) Would be reduced.

Ans: Type 1 = S before R, opposite; Type 2 at apex/ends; Law 3 = reduced

Why: Type I: sidebending first, opposite rotation. Type II: found at the apex or extremes of Type I curves. Third principle: flexion reduces sidebending and rotation.

Explanation & sources

Explanation

This is why Type I is written N SxRy and Type II is written F/E RxSx. Type II can also occur by itself or at transitional areas.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 45-46
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 18

3.6 · 9 questions · Questions 153–161

Type I vs Type II

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Type IType II
SegmentsGroup (2 or more)Single
PositionNeutral: flexion/extension do not change itFlexed or extended: asymmetry changes with F/E
CouplingSidebending first; S and R oppositeRotation first; R and S same side
Typical onsetGradual, compensatory, usually chronicAcute: trauma / abrupt twisting
WhereGroup curvesApex (mid-point) or ends of a Type I curve, transitional areas, or alone
Muscles maintaining itLong restrictors: erector spinae (iliocostalis, longissimus, spinalis)Short deep restrictors: rotatores (brevis and longus), intertransversarii, multifidus (interspinalis are also short segmental)
Treatment orderSecondTreat first; fixing an apex Type II often lets the curve improve

The deep intrinsic muscles and the facets determine Type II behavior; the rotatores are dense in muscle spindles, which is why twisting injuries provoke Type II dysfunction. A Type II is not “less severe” than a Type I. Trapezius and serratus posterior inferior are not Fryette restrictors.

153Type I vs Type II

Which is true of a Type 1 somatic dysfunction?

Ans: Type 1 → neutral group, SB and R opposite → C

Why: In Type I mechanics sidebending and rotation occur in opposite directions (e.g. T6-T8 N Sr Rl).

Explanation & sources

Explanation

Type I involves two or more segments, not one. It is neutral, so flexion and extension do not change it. Sidebending precedes rotation in Type I; rotation first is Type II.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 40-41
Lecture slide (1)
Week 3 · Written Review deck · slide 17
154top 215Type I vs Type II

True or false when referring to a somatic dysfunction? A type 1 SD of the spine is acute.

Ans: Type 1 → gradual, compensatory group curve → usually chronic → False

Why: Type I group curves form gradually, usually as compensation, so they are typically chronic. Type II is the one linked to acute trauma or abrupt twisting.

Explanation & sources

Explanation

Type I is maintained by the long erector spinae muscles. Type II is maintained by short deep muscles such as the rotatores and intertransversarii.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 18
155top 215asked 7×2026Type I vs Type II

Which of the following is a characteristic of a type II somatic dysfunction?

Ans: Type II found at apex (mid-point) or extremes of Type I curves → A

Why: Type II dysfunctions are found at the apex or extremes of Type I curves, and the apex is the mid-point of the curve.

Explanation & sources

Explanation

Type II is usually acute and traumatic (B wrong). Opposite-side coupling (C) and sidebending first (D) are Type I features. Type II should be treated before Type I, so it is not 'less severe' (E).

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 39-40
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 37-40
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 21-23
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 17-18
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 43-44
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 43-44
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 80-81
Lecture slide (1)
Week 3 · Written Review deck · slide 18
156Type I vs Type II

It is possible for a Type II somatic dysfunction to be located within a Type I curve. Which letter in the image corresponds to the vertebra at which the Type II SD would likely be located?

Ans: Type II sits at the apex (mid-point) of a Type I curve → C

Why: Type II dysfunctions classically sit at the apex of a Type I curve, which is the mid-point of the curve (C).

Explanation & sources

Explanation

B and D are mid-curve segments that are neither apex nor end. The course also says Type II can appear at the extremes (ends) of the curve or at transitional areas, but the apex is the answer they want.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 56-57
Lecture slide (1)
Week 3 · Written Review deck · slide 18
157top 2152026Type I vs Type II

During a structural examination, a physician identifies a multi-segment group curve spanning T4–T8 that is neutral, sidebent right, and rotated left (T4–T8 N SR RL). At the apex of this curve (T6), palpation reveals an acute single-segment dysfunction that worsens in flexion and improves in extension (T6 E RR SR). Which dysfunction should be treated first, and why?

Ans: Type II at apex of Type I curve → treat Type II first → B

Why: The course rule: Type II dysfunctions should be treated before Type I. Fixing the apex Type II often lets the group curve improve.

Explanation & sources

Explanation

C is wrong because Type I couples sidebending and rotation to opposite sides. D is wrong because Type I is maintained by the long erector spinae, Type II by short deep muscles. Waiting for skin changes (E) has no basis.

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  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 145 (answer slide 146)
Lecture slide (1)
Week 3 · Written Review deck · slide 18
158Type I vs Type II

Which muscles are commonly involved in Type 2 SD?

Ans: Type 2 → single segment → short deep restrictors (rotatores) → C

Why: Type II SD is maintained by short deep restrictors: rotatores (brevis), intertransversarii and multifidus.

Explanation & sources

Explanation

Erector spinae, including longissimus, maintain Type I group curves. Trapezius is a superficial muscle not used to explain Fryette mechanics. Deep intrinsic muscles and the facets determine Type II behavior.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 42-43
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 80
159top 215asked 2×Type I vs Type II

A patient presents with "I went to pick up a box and now my back hurts." According to Fryette's principles, which muscles are affected in this type of somatic dysfunction?

Ans: Lifting injury → acute Type II → short restrictors → rotatores brevis → C

Why: A sudden lifting/twisting injury gives an acute Type II SD, maintained by short restrictors such as the rotatores brevis and intertransversarii.

Explanation & sources

Explanation

Iliocostalis and spinalis are parts of the erector spinae, which maintain Type I curves. Serratus posterior inferior is an intermediate-layer extrinsic back muscle and not a Fryette restrictor.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 116-117
  • 2020 TA Review Exam 1 · TA review · slides 105-106
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 80
160Type I vs Type II

The muscular TA Gregory is attempting to break the deadlifting world record. While bending over, he seems to have twisted his back and injured himself. In regards to this type of somatic dysfunction, which of Gregory's muscles is least likely to be directly involved in his injury?

Ans: Bent + twisted → Type II → short deep muscles; erector spinae = Type I → C

Why: A twisting injury while bent gives a Type II SD maintained by short deep muscles. The erector spinae maintain Type I group curves, so they are least likely involved.

Explanation & sources

Explanation

Rotatores (brevis and longus), intertransversarii and interspinalis are short segmental muscles that span one or two levels. The rotatores are dense in muscle spindles, which is why twisting motions provoke Type II dysfunction.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 62-63
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 80
161Type I vs Type II

Which muscles maintain a type I and a type II somatic dysfunction, respectively?

AnswerType I: erector spinae (long restrictors). Type II: short restrictors, i.e. rotatores, multifidus and intertransversarii.

Ans: Group curve → long muscles (erector spinae); single segment → short deep muscles

Why: Long multi-segment muscles (erector spinae) hold multi-segment Type I curves. Short one-segment muscles (rotatores, intertransversarii, multifidus) hold single-segment Type II dysfunctions.

Explanation & sources

Explanation

The erector spinae are iliocostalis, longissimus and spinalis. Because Type II lives in small deep muscles, muscle energy is usually preferred over a broad myofascial technique.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 60-61
Lecture slide (1)
Week 3 · Written Review deck · slide 18

3.7 · 7 questions · Questions 162–168

Type I/II notation

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This course writes the two types in a fixed format. Check a diagnosis against all four rules:

Type IType II
LevelsA range (T2-T6)One vertebra (T3)
Position letterNF or E
Written firstSidebending, then rotationRotation, then sidebending
SidesOppositeSame
ExampleT2-T6 N Sl Rr, T10-L2 N Sr RlT3 F Rl Sl, T3 F Rr Sr, T6 FRSl

How distractors fail: a group that is F or E (not neutral); a neutral group with same-side letters; a single segment labelled N; a flexed single segment with opposite sides (fits neither type); a range labelled F/E with same sides (Type II must be one segment).

Letter order: when the choices include both forms, pick the course form: S-then-R for Type I (N Sr Rl, not N Rl Sr) and R-then-S for Type II (F Rr Sr, not F Sr Rr). Textbook/board-style questions sometimes write Type I as “N RL SR”; if that is the only neutral, opposite-side group offered, it still describes Type I.

Clinical clue: involvement of the erector spinae with ropy (chronic) tissue points to a Type I group curve (e.g. T4-T7 N Sr Rl).

Lecture slide for this section (1)
Written Review slide 19: naming SDs
162top 215asked 7×2026Type I/II notation

Which of the following most closely follows a dysfunction with a classic Type I mechanics pattern?

Ans: Type I = group + neutral + S first + opposite sides → T10-L2 NSrRl → C

Why: Classic Type I is a group, neutral, sidebending written first, rotation opposite: T10-L2 N Sr Rl.

Heads up: Older deck speaker notes said 'D', but D (T2-9 NRlSl) has rotation and sidebending to the same side. The red answer slide in every year, including 2026, marks C.

Explanation & sources

Explanation

A and D are neutral groups but rotate and sidebend to the same side. B is flexed, so not neutral. E is a single cervical segment in extension, and Fryette mechanics are taught for the thoracic and lumbar spine.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 41-42
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 41-44
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 29-31
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 24-25
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 45-46
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 45-46
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 87-88
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 44
Week 3 · Written Review deck · slide 17
163asked 3×Type I/II notation

Which of the following most closely follows a dysfunction with a classic Type 1 mechanics pattern?

Ans: Group + N + S first + opposite → T3-T5 N SLRR → C

Why: T3-T5 N SL RR is a neutral group with sidebending written first and rotation to the opposite side.

Explanation & sources

Explanation

A is neutral but rotation comes first and both are to the same side. B is a single flexed segment (Type II). D is flexed, so not neutral. E is extended with same-side coupling. For this course, Type I is written S then R; boards may switch the order.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 48-49
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 51-52
  • 2020 TA Review Exam 1 · TA review · slides 54-55
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 19
164Type I/II notation

Which is a correct Type I diagnosis?

Ans: Type I = N + Sx then opposite Ry → T2-T6 N Sl Rr → E

Why: T2-T6 N Sl Rr: group, neutral, sidebending listed first, rotation to the opposite side.

Explanation & sources

Explanation

A is flexed and B is extended, so neither is neutral. C is neutral but both components go right. D lists rotation first and both go right, which is Type II style.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 73-74
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 19
165Type I/II notation

Which of the following is a correct Type I diagnosis?

Ans: Group + neutral + opposite sides → T2-T4 N Sr Rl → C

Why: T2-T4 N Sr Rl is a neutral group curve with sidebending and rotation to opposite sides.

Explanation & sources

Explanation

A is neutral but same side. B is flexed. D is a single segment. E has opposite sides in a flexed single segment, which fits neither type. F (T3 F Rr Sr) is a correct Type II diagnosis, not Type I.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 57-60
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 19
166top 215Type I/II notation

Which of the following is a correct Type II diagnosis?

Ans: Type II = single segment, F or E, R first, same side → T3 F Rl Sl → D

Why: Type II: single segment, flexed or extended, rotation written first, rotation and sidebending to the same side: T3 F Rl Sl.

Explanation & sources

Explanation

A lists sidebending first with opposite sides. B and C are neutral. E is flexed but the sides are opposite. F is a group (T2-5), and Type II is a single segment.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 71-72
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 3 · Written Review deck · slide 19
167Type I/II notation

Which of the following is a correct Type II diagnosis?

Ans: Single segment + non-neutral + same side → T3 F Rr Sr → F

Why: T3 F Rr Sr: one segment, non-neutral, rotation first, rotation and sidebending to the same side.

Explanation & sources

Explanation

C (T2-T4 N Sr Rl) is the correct Type I diagnosis from the same option set. D is a single segment but neutral. E is flexed with opposite sides. A and B are groups.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 58-60
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 3 · Written Review deck · slide 19
168asked 2×Type I/II notation

In one of your patients, the erector spinae muscles are limited in their range of motion and feel ropy to palpation. What type of somatic dysfunction could this be diagnosed as?

Ans: Erector spinae + ropy (chronic) → Type I group → N, S first, opposite → D

Why: Erector spinae involvement and ropy (chronic) tissue point to a Type I curve: group, neutral, sidebending first, opposite rotation (T4-T7 N SR RL).

Explanation & sources

Explanation

A is a group but flexed. B is a single extended segment (Type II). C is neutral with opposite sides but lists rotation first, which is wrong for Type I in this course. E is a flexed single segment with sidebending first and opposite sides.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 121-122
  • 2020 TA Review Exam 1 · TA review · slides 110-111
Lecture slides (2)
Week 3 · Written Review deck · slide 17
Week 3 · Written Review deck · slide 19

3.8 · 4 questions · Questions 169–172

Naming for freedom

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A somatic dysfunction is named for its freedom: the direction(s) it moves easily, also called its preference or position of ease. It is never named for the restriction.

To find the restriction, flip every component of the name:

Diagnosis (freedom)Restricted in
FE
EF
R leftR right
S leftS right
T6 E Rl SlFlexion, right rotation, right sidebending
T10 F Rr SrExtension, left rotation, left sidebending

Segmental motion is always described as the vertebra relative to the one below: T6 moves on T7, not on T5. Half-flipped answers (flipping F/E but not the sides, or vice versa) are the usual traps. A restriction is a barrier with a firm end-feel; in muscle energy the patient is placed into the restrictive barrier and pushes toward the freedom.

169top 215asked 2×Naming for freedom

When naming a somatic dysfunction, name the:

Ans: SD named for preference/position of ease → freedom → A

Why: An SD is named for its freedom, which is the same as its preference or position of ease.

Explanation & sources

Explanation

The restriction is the opposite of the name in every plane. A restriction is a barrier with a firm end-feel. In muscle energy the patient is placed into the restrictive barrier and pushes toward the freedom.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 69-70
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 53-54
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · Written Review deck · slide 19
170Naming for freedom

True or false when referring to a somatic dysfunction? It is named for the patient's restriction.

Ans: SD named for freedom (ease), not restriction → False

Why: SDs are named for the freedom (position of ease), not the restriction.

Explanation & sources

Explanation

To get the restriction, flip every component of the name: F↔E, Rr↔Rl, Sr↔Sl. Example: T6 ERlSl is restricted in flexion, right rotation and right sidebending.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 14
171top 215asked 11×2026Naming for freedom

In evaluation of a patient with thoracic pain, your diagnosis on palpation is T6 ERlSl. This means that T6 is restricted in?

Ans: Name = freedom; flip every letter (E→F, Rl→Rr, Sl→Sr); motion is T6 on T7 → B

Why: T6 ERlSl is free in extension, left rotation and left sidebending, so it is restricted in flexion, right rotation and right sidebending. Segmental motion is always described relative to the vertebra below (T6 on T7).

Heads up: On the 2026 IA3 poll everyone received credit for this question (announced at IA5). B is still the correct answer on the answer slide in every year and in the textbook version.

Explanation & sources

Explanation

A flips flexion but keeps the left side, so it is half right. C has the right motions but the wrong reference vertebra (T5). D and E keep extension, which is the freedom, and also use T5.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 37-38
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 33-36
  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.12 Q3 (answer key p.16)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 5 (answer slide 6); textbook TB_Basics.pdf p.12 Q3
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 17-19
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 14-15
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 41-42
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 41-42
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 52-53
  • 2022 TA Review - Exam 1 · TA review · slides 45-46
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 77-78
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · IA3 Somatic Dysfunction · slide 36
172Naming for freedom

Mr. Smith bent over forward and to the right to pick up a heavy box, and you diagnose T10 F RrSr. In what motions may Mr. Smith have restriction?

Ans: Freedom F Rr Sr → flip every letter → restricted E, Rl, Sl → D

Why: The restriction is the exact opposite of the freedom: extension, left rotation and left sidebending.

Explanation & sources

Explanation

A is the freedom. B flips the rotation but keeps flexion, and C flips flexion but keeps right rotation. Both are half-flips.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 263-264
Lecture slide (1)
Week 3 · Written Review deck · slide 14

3.9 · 13 questions · Questions 173–185

Palpation to diagnosis

No questions in this section match the current Show filter.

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Turn palpation findings into a diagnosis in four steps:

  1. Rotation = side of the posterior transverse process. Rotating left turns the body left and pushes the left TP posterior. If your left thumb is more anterior (deeper), the right TP is posterior → rotated right.
  2. Group or single? Several segments (or a whole region with one curve) → think Type I. One segment with other levels moving normally → Type II.
  3. Does the asymmetry change with flexion/extension?
    No change → Neutral, Type I: sidebending opposite the rotation → write N Sx Ry.
    Changes → Type II: name it for the position where the asymmetry improves or disappears (better in flexion → F; better in extension → E); sidebending to the same side → write F/E Rx Sx.
  4. Name the freedom, never the position that makes it worse.
FindingDiagnosis
3 segments, left TPs posterior, no change with F/EN Sr Rl
Chronic, ropy L2–L4, L3 left TP posterior, no change with F/EL2–L4 N Sr Rl
T3 left TP posterior, worse in flexion, level in extensionT3 E Rl Sl
T4 right TP posterior, better in flexion, worse in extensionT4 F Rr Sr
T2 restricted in left rotation, worse in flexion, normal in extensionT2 E Rr Sr
T6 at end of T3–T6 N Sr Rl, worse in flexion, symmetric in extensionT6 E Rl Sl

Group curves by shape: sidebending is named toward the concavity; Type I rotation goes toward the convexity. A lumbar spine convex right = sidebent left, rotated right (Type I).

Why Type II changes with F/E (facets): an extended dysfunction (ERS) “disappears” in extension and is accentuated in flexion: in flexion both posterior facets should open, but one stays closed, so the vertebra rotates and sidebends toward that side (facet closed on the side of rotation). A flexed dysfunction (FRS) disappears in flexion and worsens in extension: in extension both facets should close, but one stays open, so it rotates and sidebends to the opposite side. So “restricted in flexion, posterior on the left” = left facet stuck closed = E Rl Sl. And since an ERS is restricted in flexion and the opposite rotation, flexing T3 E Rl Sl limits its right rotation.

Lecture slide for this section (1)
IA5 slide 67: ERS vs FRS and the facets
173asked 7×2026Palpation to diagnosis

On palpation of your patient you notice posterior transverse processes of three vertebrae on the left. Flexion and extension yield no change in the transverse process asymmetry. Which of the following is correct regarding this patient's somatic dysfunction?

Ans: Posterior TP left → rotated left; group + no F/E change → neutral Type I → sidebent right → D

Why: Posterior TP on the left means rotated left. A group that does not change with flexion or extension is neutral (Type I), so sidebending is opposite: N Sr Rl.

Explanation & sources

Explanation

A, B and C are non-neutral Type II patterns, which change with flexion or extension. E has the right type but the wrong sides (rotation would then be right, with posterior TPs on the right).

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 47-48
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slide 60
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 38-40
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 30-31
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 51-52
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 51-52
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 93-94
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 60
Week 3 · Written Review deck · slide 17
174top 2152026Palpation to diagnosis

A 27-year-old female presents to the office for evaluation of acute-on-chronic back pain. Osteopathic examination reveals reproducible lumbar paraspinal muscle tenderness. When palpating this region, the physician's left thumb is more anterior than the right thumb. This finding does not improve or worsen when the patient bends forward or backward. The most likely somatic dysfunction is

Ans: Left thumb anterior → right TP posterior → rotated right; no F/E change → neutral → sidebent left → E

Why: If the left thumb is anterior, the right TP is posterior, so the segment is rotated right. No change with flexion or extension means neutral (Type I), so it is sidebent left.

Explanation & sources

Explanation

F is the trap: it reads the anterior left thumb as left rotation. A to D are non-neutral and would change with forward or backward bending.

Asked in

  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · · slide 64 (top)
Lecture slide (1)
Week 3 · Written Review deck · slide 17
1752026Palpation to diagnosis

A 55-year-old man presents to the office with chronic low back pain. The pain began shortly after he started work as an accountant several years ago. His job requires prolonged sitting at a desk. Osteopathic examination reveals: ropy tissue texture changes in the L2–L4 region; L3 left transverse process is posteriorly displaced; L3 left transverse process does not change with lumbar flexion or extension. The most likely diagnosis is

Ans: Chronic group L2-L4 + no F/E change → neutral; posterior left TP → rotated left → sidebent right → B

Why: Chronic, ropy, multi-segment and unchanged by flexion or extension means a neutral Type I group (L2–L4). Left posterior TP means rotated left, so sidebending is right.

Explanation & sources

Explanation

A is a group but flexed. C has neutral mechanics but the wrong sides. D and E name a single segment, but the findings span L2–L4; E is also a Type II pattern. In course notation this is L2-L4 N Sr Rl.

Asked in

  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slides 54-57
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 57
Week 3 · IA3 Somatic Dysfunction · slide 21
176top 215asked 8×2026Palpation to diagnosis

A patient presents to your office with chronic low back pain. While lying prone, the patient's entire lumbar spine appears to have a lateral convexity to the right. State a possible diagnosis.

Ans: Group curve → Type I; convex right = concave left → sidebent left → rotated right (toward convexity) → D

Why: A whole-region curve is Type I. Sidebending is named toward the concavity (left), and Type I rotation goes to the opposite side, toward the convexity (right).

Explanation & sources

Explanation

C is the classic trap: it names sidebending toward the convexity. A and B are Type II, which is a single segment, and A also has opposite sides. The information given is enough, so E is wrong.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 43-44
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slide 58
  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 151 (answer slide 152)
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 32-34
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 26-27
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 47-48
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 47-48
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 89-90
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 58
Week 3 · Written Review deck · slide 17
177top 215asked 7×2026Palpation to diagnosis

While evaluating a patient's upper back, you notice that T3's transverse process is posterior on the left. Flexing T3 worsens the prominence of the posterior transverse process on the left. Extension allows the left transverse process to move anteriorly with ease. What can be said regarding this somatic dysfunction at T3?

Ans: Posterior left, worse in flexion → T3 ERlSl → restricted F, Rr, Sr → flexion limits right rotation → E

Why: The findings give T3 E Rl Sl. Its restrictions are flexion, right rotation and right sidebending, so flexing T3 engages the barrier and limits right rotation.

Explanation & sources

Explanation

A names Type II correctly but gives opposite-side coupling, which is Type I. B is wrong because head extension extends T2 on T3. C is backward: left rotation is the freedom. D is wrong because extension makes the Type II asymmetry disappear; it does not convert it to Type I.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 49-50
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slide 61
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 41-43
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 32-33
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 53-54
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 53-54
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 95-96
Lecture slides (2)
Week 3 · IA3 Somatic Dysfunction · slide 61
Week 5 · IA5 Thoracic & Scoliosis · slide 67
1782026Palpation to diagnosis

While evaluating a patient seated on the examination table, you place your thumbs over the transverse processes of T3. In the neutral position, your left thumb is noticeably more posterior than your right thumb. You instruct the patient to bend forward (flexion), and the left transverse process becomes significantly more prominent. When the patient slumps backward into extension, your thumbs become level. What is the correct diagnosis for T3?

Ans: Posterior left → RL; level in extension → E; Type II same side → SL → B

Why: Posterior left TP = rotated left. Asymmetry disappears in extension = extended. Type II couples to the same side: T3 E RL SL.

Explanation & sources

Explanation

A gets the rotation right but picks flexion, the position that worsens it. C and E put the rotation on the wrong side. D is a neutral Type I pattern, but this finding changes with flexion and extension.

Asked in

  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 149 (answer slide 150)
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
179Palpation to diagnosis

On palpation, you notice a posterior TP on the right side at T4. Flexing T4 worsens the prominence on the right; extension allows more freedom of motion of T4 on the right anteriorly. What is the somatic dysfunction?

Ans: Posterior right → Rr; worse in flexion, better in extension → E; Type II → Sr → A

Why: Rotated right with asymmetry that improves in extension gives T4 E Rr Sr.

Explanation & sources

Explanation

B is a neutral Type I pattern, which would not change with flexion or extension. C names the position that worsens the asymmetry; an SD is named for the position that eases it.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 49-50
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
1802026Palpation to diagnosis

A 17-year-old male presents to the office with acute back pain. Osteopathic examination reveals that the left transverse process of T2 is more posterior than the right. This finding is exaggerated with forward bending of the spine. All other spinal segments demonstrate preserved motion. According to Fryette principles, with this patient's somatic dysfunction

Ans: Single segment, worse in flexion → T2 E Rl Sl (Type II) → improves with extension → B

Why: This is a Type II T2 E Rl Sl. An extended dysfunction improves (the asymmetry disappears) in extension.

Explanation & sources

Explanation

A describes Type I (neutral). C and E imply a group curve, but all other segments move normally. D describes Type I coupling; Type II rotates and sidebends to the same side.

Asked in

  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · · slide 65 (top)
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
181top 215asked 3×2026Palpation to diagnosis

A 25-year-old male complains of upper back pain. Structural examination reveals T2 is restricted with left rotation. Flexing the body down to T2 causes the segment to further rotate to the right, while extending the area causes T2 to return to the neutral position. The most appropriate nomenclature for this dysfunction is?

Ans: Restricted left rotation → rotated right; worse in flexion, neutral in extension → E; Type II → SR → B

Why: Restricted in left rotation means the freedom is right rotation. It worsens in flexion and normalizes in extension, so it is extended. A single non-neutral segment follows Type II, so it sidebends right: ERRSR.

Explanation & sources

Explanation

A and C have the rotation on the wrong side. D picks flexion, the position that worsens it. E is a neutral pattern, but this segment changes with flexion and extension.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.12 Q4 (answer key p.16)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 7 (answer slide 8); textbook TB_Basics.pdf p.12 Q4
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 54-55
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
182asked 3×Palpation to diagnosis

While evaluating a patient's upper back, you notice that T4's transverse process is more posterior on the right. When the patient bends chin to chest, T4's posterior TP becomes better and the right TP moves anteriorly with ease. When the patient arches back and looks at the ceiling, T4's posterior TP becomes worse. Name the somatic dysfunction.

Ans: Posterior right → RR; better in flexion → F; Type II → SR, rotation written first → E

Why: Rotated right, better in flexion and worse in extension gives T4 F RR SR. Name for the freedom.

Explanation & sources

Explanation

C has the right motions but lists sidebending first; in this course, Type II is written with rotation first. B is extended with opposite sides. A and D are group diagnoses, and D is also flexed with opposite sides.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 56-57
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 56-57
  • 2020 TA Review Exam 1 · TA review · slides 59-60
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
183Palpation to diagnosis

On palpation of L3, the transverse process is more posterior on the left. The dysfunction worsens in extension and improves in flexion. What is the correct diagnosis?

Ans: Posterior left → Rl; better in flexion → F; Type II same side → Sl → A

Why: Posterior left TP = rotated left; it improves in flexion; Type II couples the same side: L3 F Rl Sl.

Explanation & sources

Explanation

B picks extension, the position that worsens it. C and D put rotation on the wrong side. E is a neutral pattern, which would not change with flexion or extension.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 60-61
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
184Palpation to diagnosis

A patient has a group dysfunction T3-T6 N Sr Rl. Upon further evaluation, at the level of T6 the asymmetry in the TPs gets worse in flexion and becomes more symmetrical in extension. What is the patient's diagnosis at T6?

Ans: Group rotated left → T6 rotated left; symmetrical in extension → E; Type II same side → D

Why: T6 shares the left rotation, and its asymmetry clears in extension, so it is a Type II T6 E Rl Sl at the end of the group curve.

Explanation & sources

Explanation

A and B are neutral, but this segment changes with flexion and extension. C picks flexion, which worsens the asymmetry. Type II dysfunctions are typically found at the top, bottom or apex of a Type I curve.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 63-64
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 67
185Palpation to diagnosis

A patient comes in with lower back pain. After performing an osteopathic structural exam, the physician states the patient is restricted in forward flexion and the vertebra is shallow (posterior) on the left compared to the right. What is the motion of the facet joint causing this dysfunction?

Ans: Restricted flexion → ERS; posterior left → RL SL; left facet can't open → stuck closed → A

Why: Restricted flexion with left posterior = E RL SL. In flexion both facets should open; the left facet stays closed, so the segment pivots and rotates/sidebends left.

Explanation & sources

Explanation

B and D are flexion dysfunctions, but this patient is restricted in flexion. C names an ERS left but blames the wrong facet; the closed facet is on the side of rotation. Flexed dysfunctions (FRS) come from a facet stuck open, on the side opposite the rotation.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 109-110
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 70
Week 5 · IA5 Thoracic & Scoliosis · slide 67

3.10 · 6 questions · Questions 186–191

Mechanism of injury

No questions in this section match the current Show filter.

Learn firstWhat you need for 3.10

An SD usually matches the position of its mechanism of injury. The position the patient was in when they got hurt becomes the freedom, and the opposite becomes the restriction (which is why these patients cannot straighten up).

  • Acute trauma (sudden onset, redness, warmth, sharp pain) → Type II single segment (F or E, rotation written first, same side). Neutral group curves are chronic and compensatory, so they do not fit an acute injury.
  • “Can't straighten up / stand up straight” = restricted extension → freedom is flexion (F).
  • Bending forward and to the right → F Rr Sr (e.g. L2 F Rr Sr, T10 F Rr Sr).
  • Bending forward toward the left → F Rl Sl (e.g. L4 F Rl Sl).
  • Reaching back and to the left (pen dropped behind) → extension with left rotation/sidebending.

Eliminate options that are extended when the patient was bent forward, that are on the wrong side, that list sidebending first, or that have opposite-side coupling in a single flexed segment.

186Mechanism of injury

True or false when referring to a somatic dysfunction? SDs usually match the positions of their mechanisms of injury (e.g., if you tweak your back bending forward to pick something, or someone, up, it will be a flexion SD).

Ans: Injured position becomes the freedom → SD matches mechanism → True

Why: The review deck states that SD usually matches the position of the mechanism of injury. The position the patient was in when hurt becomes the freedom.

Explanation & sources

Explanation

Bending forward and to the right when injured gives F Rr Sr. The restriction is the opposite (E, Rl, Sl), which is why these patients cannot straighten up.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 38-39
Lecture slide (1)
Week 3 · Written Review deck · slide 14
187top 215asked 9×2026Mechanism of injury

A man presents to your office with acute pain on the lower lumbar spine, unable to straighten his back. He was trying to pick up a box while bent forward and leaning over to the right. What is the most likely somatic dysfunction that you will palpate in this traumatic presentation?

Ans: Acute trauma → Type II; can't extend → F; leaning right → RR SR, rotation first → E

Why: Acute trauma gives a Type II single segment. He cannot straighten (extend), so the freedom is flexion. Injured while leaning right gives rotated and sidebent right, written rotation first: FRRSR.

Explanation & sources

Explanation

A and B are neutral group (Type I) curves, which are chronic and compensatory. C is extended and leans left. D is flexed but lists sidebending first with opposite sides, which is not Type II.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 45-46
  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · In-class poll · slide 59
  • 2025 (PE) IA 3 - Somatic dysfunction · In-class poll · slides 35-37
  • 2024 IA 3 - Somatic dysfunction · In-class poll · slides 28-29
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 49-50
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 49-50
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 49-50
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 58-59
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 91-92
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · IA3 Somatic Dysfunction · slide 21
188asked 3×Mechanism of injury

A patient presents with acute pain in his lower lumbar spine and is unable to straighten his back. He bent forward to pick up his son on the left, which is how the pain started. What is the most likely somatic dysfunction that you will palpate?

Ans: Acute → Type II; can't straighten → F; bent toward left → RL SL → D

Why: Unable to straighten (extend) means the freedom is flexion. An acute single segment is Type II, and bending toward the left gives rotated and sidebent left: L4 F RL SL.

Explanation & sources

Explanation

A and C are neutral group curves (C is a correct Type I format but does not fit an acute injury). B and E are extended, which is the motion he cannot do. The position at the time of injury is the freedom.

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  • 2022 TA Review - Exam 1 · TA review · slides 37-38
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 47-48
  • 2020 TA Review Exam 1 · TA review · slides 50-51
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · IA3 Somatic Dysfunction · slide 21
189Mechanism of injury

A woman presents to your office with acute back pain, unable to stand up straight. She was bending forward leaning to the right to pick up her child. What is the most likely somatic dysfunction that you will palpate?

Ans: Can't extend → F; leaning right → Rr Sr; Type II, rotation first → E

Why: She cannot stand straight, so the freedom is flexion. She was leaning right, so Rr Sr, written rotation first: T4 F Rr Sr.

Explanation & sources

Explanation

A lists sidebending first with opposite sides. B lists sidebending first. C and D are extended. F has the correct format but the wrong side.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 76-77
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · Written Review deck · slide 18
190Mechanism of injury

Mr. Smith bends over forward and to the right to pick up a heavy box quickly. The next day he has back pain with marked redness and warmth around T10. What may be the potential dysfunction?

Ans: Forward → F; to the right → Rr; acute (red, warm) → Type II → Sr → C

Why: Bending forward and right gives flexed, rotated right. Redness and warmth mean acute, so Type II with same-side sidebending: T10 F Rr Sr.

Explanation & sources

Explanation

A is a neutral group curve. B and E have opposite-side coupling. D has the correct sides but is extended rather than flexed.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 261-266
Lecture slides (2)
Week 3 · Written Review deck · slide 14
Week 3 · Written Review deck · slide 18
191Mechanism of injury

A patient presents with low back pain. He says that it began after reaching back to pick up a pen that dropped behind and to the left of him. Which of the following describes his spinal motion?

Ans: Reaching back → extension; behind and left → rotation/sidebending left → D

Why: Reaching back and to the left is extension with left rotation and sidebending. That position is the freedom; the restriction is flexion and right rotation/sidebending.

Explanation & sources

Explanation

A and B describe forward bending, which does not match reaching behind. C and E leave out one of the two motions involved.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 57-58
Lecture slide (1)
Week 3 · Written Review deck · slide 14

3.11 · 1 question · Question 192

Direct vs indirect

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Direct techniques move the dysfunctional segment into the restrictive barrier; indirect techniques move it away from the barrier, into the freedom (position of ease).

DirectIndirect
Goes towardRestrictive barrier (opposite of the name)Freedom / ease (same as the name)
ExamplesMuscle energy, HVLACounterstrain
Positioning for T6 E Rl SlFlexion, right rotation, right sidebendingExtension, left rotation, left sidebending

For a direct setup, flip every letter of the diagnosis (F↔E, left↔right for both rotation and sidebending).

192top 2152026Direct vs indirect

An osteopathic physician evaluates a patient with mid-back pain and diagnoses a T6 E RL SL somatic dysfunction. The physician chooses to perform a Direct technique (such as Muscle Energy Technique) to treat the dysfunction. Into which positioning combination must T6 be placed to properly engage the restrictive barrier?

Ans: Name = freedom; direct → into barrier → flip every letter → F RR SR → B

Why: T6 E RL SL is free in extension, left rotation and left sidebending. A direct technique goes into the barrier: flexion, right rotation, right sidebending.

Explanation & sources

Explanation

A is the freedom, which is where an indirect technique (e.g. counterstrain) would position the segment. C and D flip only some components. E is a neutral Type I setup.

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  • 2026 Textbook Q&A Compilation - Somatic Dysfunction Practice Questions · Practice questions · slide 143 (answer slide 144)
Lecture slide (1)
Week 3 · IA3 Somatic Dysfunction · slide 51

3.12 · 2 questions · Questions 193–194

Related topics

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  • The atlantoaxial joint (C1 on C2) is mainly a rotation joint. Rotation occurs in the transverse (horizontal) plane about a vertical axis. Don't confuse transverse plane (rotation) with transverse axis (flexion/extension).
  • Autonomics and the gut: the sacral region carries parasympathetic outflow (S2–S4, pelvic splanchnic nerves). Increased parasympathetic drive speeds gut motility → diarrhea. Sacral SD → ↑ parasympathetic drive to the gut → diarrhea. By contrast, hypersympathetic drive (thoracolumbar SD) slows the bowel → constipation.
1932026Related topics

A 14-year-old female is brought to the office for a sports physical examination. Vital signs and cardiopulmonary examination are normal. Musculoskeletal examination reveals a somatic dysfunction of the atlantoaxial joint. This somatic dysfunction is assessed in the

Ans: Atlantoaxial = rotation joint → rotation occurs in transverse (horizontal) plane → E

Why: The atlantoaxial joint is mainly a rotation joint, and rotation occurs in the transverse (horizontal) plane about a vertical axis.

Explanation & sources

Explanation

The A-P axis and coronal plane go with sidebending. The sagittal plane and transverse axis go with flexion and extension. Note the trap between 'transverse axis' (flexion/extension) and 'transverse plane' (rotation).

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  • 2026 OMM1 IA3 Somatic Dysfunction (Poll Everywhere) · · slide 64 (bottom)
Lecture slide (1)
Week 2 · Written Review deck · slide 11
194asked 3×Related topics

If you have somatic dysfunction of the sacrum, what are the effects on your health?

Ans: Sacrum → S2-S4 pelvic splanchnics (parasympathetic) → more gut motility → diarrhea → C

Why: The sacral region carries parasympathetic outflow (S2-S4, pelvic splanchnics). Sacral SD can increase parasympathetic drive to the gut, which increases motility and causes diarrhea.

Explanation & sources

Explanation

Parasympathetic tone speeds the gut, so A pairs it with the wrong effect. Hypersympathetic drive slows the bowel and causes constipation (D), which is the effect of a thoracolumbar SD. B pairs sympathetic drive with the wrong effect.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 36-37
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 41-42
  • 2020 TA Review Exam 1 · TA review · slides 44-45

Week 4 · 90 questions

Neuromuscular Physiology

Questions 195–284

11 sections in this week
  1. 4.1Fascia
  2. 4.2Muscle receptors
  3. 4.3Muscle spindle
  4. 4.4Alpha & gamma motor neurons
  5. 4.5Golgi tendon organ
  6. 4.6Reciprocal inhibition & crossed extensor
  7. 4.7Types of muscle contraction
  8. 4.8Technique physiology
  9. 4.9Hypertonia & goals of treatment
  10. 4.10Soft tissue techniques
  11. 4.11Myofascial release

4.1 · 5 questions · Questions 195–199

Fascia

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Fascia envelops muscles (muscles grow within it) and guides their contraction and motion, which is why muscle and fascia are called myofascia. FOM3 defines fascia as loose or dense irregular connective tissue organized as concentric tubes (not sheets). Dense regular tissue is tendon and ligament, not fascia.

FOM3 fascial layer (outside → in)Where / what
1. PannicularSuperficial (subcutaneous) fascia; contains muscles such as the platysma
2. Axial and appendicularDeep investing fascia of the trunk and limbs, just under the pannicular layer
3. MeningealSurrounds the CNS
4. VisceralSurrounds the organs of the body cavities

So removing the platysma removes the pannicular layer and reveals the axial/appendicular layer beneath it.

Cells of fascia: fibroblasts, myofibroblasts, macrophages and mast cells. (Reticulocytes are immature red blood cells, not fascia.) Extracellular matrix: collagen, elastic fibers, laminin, fibronectin.

195Fascia

Which of the following houses muscle and guides its contraction and motions?

Ans: Envelops muscle + guides its motion → fascia

Why: Muscles grow within and are enveloped by fascia, and fascia guides their contraction and motion. That is why the lecture calls it myofascia.

Explanation & sources

Explanation

Ligaments connect bone to bone and do not house muscle. Cartilage covers joint surfaces. 'Fibrous connective tissue' is too general; fascia is the specific structure. Tendons insert into bone through Sharpey's fibers.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 82-83
196asked 2×Fascia

According to FOM3, fascia is what type of connective tissue?

Ans: FOM3: fascia = irregular connective tissue arranged as concentric tubes → dense irregular, tubes

Why: FOM3 defines fascia as loose or dense irregular connective tissue, organized as concentric tubes (pannicular, axial/appendicular, meningeal, visceral).

Explanation & sources

Explanation

Dense regular tissue is tendon and ligament, not fascia. 'Loose regular' is not a fascia type. 'Loose irregular, sheets' gets the tissue partly right but the layers are described as tubes, not sheets.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 135-136
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 74-75
197Fascia

You remove the platysma from your cadaver. What layer of fascia did you remove?

Ans: Platysma lies in superficial fascia → pannicular layer

Why: The platysma is a muscle embedded in the superficial (subcutaneous) fascia, which FOM3 calls the pannicular layer.

Explanation & sources

Explanation

Axial and appendicular fascia is the deep investing layer under the pannicular layer. Meningeal fascia surrounds the CNS. Visceral fascia surrounds the body-cavity organs.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 77-80
198Fascia

You remove the platysma from your cadaver. What layer of fascia is being revealed?

Ans: Remove pannicular (platysma) layer → next deeper = axial/appendicular

Why: Removing the platysma takes away the pannicular layer and exposes the next deeper tube, the axial and appendicular (deep investing) fascia.

Explanation & sources

Explanation

Pannicular is the layer you removed, not the one revealed. Meningeal and visceral layers lie much deeper, around the CNS and the organs. Order from outside in: pannicular, axial/appendicular, then meningeal and visceral.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 78-80
199Fascia

Which cells are NOT a component of fascia?

Ans: Fascia cells = fibroblasts, myofibroblasts, macrophages, mast cells → reticulocytes are not

Why: The cells of fascia are fibroblasts, myofibroblasts, macrophages and mast cells. Reticulocytes are immature red blood cells found in blood.

Explanation & sources

Explanation

The other four are all resident cells of fascia. Its extracellular matrix holds collagen, elastic fibers, laminin and fibronectin.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 81-82

4.2 · 14 questions · Questions 200–213

Muscle receptors

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Two receptors are specific to muscle: the muscle spindle and the Golgi tendon organ (GTO). Together they provide continuous feedback and adjustment of muscular tone. (Nociceptors, Ruffini, Meissner and Pacinian receptors are found in skin, joints and other tissues.)

Muscle spindleGolgi tendon organ
LocationBelly of the muscleMyotendinous junction (periphery/ends of the muscle); encapsulated, 10–15 muscle fibers pass through it
SensesStretch: change in length and rate of change of lengthTension (from contracting or stretching)
Afferent (sensory) fibersIa (primary) and II (secondary)Ib: large, rapidly conducting
Motor supplyGamma motor neurons to its intrafusal fibersNone
Reflex effectStretch → the same muscle contractsHigh tension → the same muscle relaxes

Memory hooks: GTO = Tension, and “b” for tendon: Ib = GTO. The Ia fiber is the primary sensory neuron in muscle (main afferent of the stretch reflex). Alpha and gamma are motor (efferent) neurons, never sensory. Neither receptor is a pain receptor.

Spindle anatomy: a 3–10 mm capsule holding 3–12 intrafusal fibers, surrounded by the large extrafusal fibers that make up the muscle. Gamma motor neurons supply the intrafusal fibers; alpha motor neurons supply the extrafusal fibers; Ia and II carry its sensory signal.

Lecture slide for this section (1)
Written Review slide 26: alpha and gamma motor innervation
200Muscle receptors

What are the two receptors specific to muscle?

Ans: Receptors specific to muscle → muscle spindle + Golgi tendon organ

Why: The two receptors specific to muscle are the muscle spindle (in the belly) and the Golgi tendon organ (at the myotendinous junction). Together they give continuous feedback and adjust muscle tone.

Explanation & sources

Explanation

Nociceptors, Ruffini endings, Meissner and Pacinian corpuscles are found in skin, joints and other tissues, not only in muscle. Each wrong option pairs one muscle receptor with a general receptor.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 83-84
Lecture slide (1)
Week 4 · Written Review deck · slide 23
201top 215Muscle receptors

What is the function of each muscle receptor?

Ans: GTO senses tension; spindle senses stretch (length) → B

Why: The Golgi tendon organ detects tension and the muscle spindle detects stretch (length and rate of change of length).

Explanation & sources

Explanation

A swaps the two. Neither receptor is a pain receptor, which rules out C, D and E. Memory hook: GTO = Tension, both have a T.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 85-86
Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 8
Week 4 · IA4 Neuromuscular · slide 26
202Muscle receptors

What is the role of the muscle spindle and golgi tendon?

Ans: Lecture: spindle + GTO 'provide continuous feedback and adjustment of muscular tone' → C and D

Why: The lecture states these two receptors provide continuous feedback and adjustment of muscular tone, so the answer combines C and D.

Explanation & sources

Explanation

Regulation of movement and proprioception are loosely true but are not the lecture's wording. When a 'both' option matches a lecture line word for word, pick it.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 88-89
203Muscle receptors

Which of the following is located in the belly of the muscle?

Ans: Belly of muscle → muscle spindle (GTO is at the tendon)

Why: The muscle spindle is the receptor located in the belly of the muscle, where it senses stretch.

Explanation & sources

Explanation

The GTO is at the myotendinous junction. Intrafusal fibers sit inside the spindle, but the question asks for the receptor. Extrafusal fibers make up the whole muscle, not a receptor.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 84-85
204Muscle receptors

Which of the following is located at the periphery of the muscle?

Ans: Periphery (end) of muscle = myotendinous junction → GTO

Why: The Golgi tendon organ sits at the myotendinous junction, at the ends of the muscle, where it senses tension.

Explanation & sources

Explanation

The muscle spindle and its intrafusal fibers are in the belly. Extrafusal fibers make up the bulk of the muscle and are not a receptor.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 86-87
205top 215Muscle receptors

Describe the anatomical location of the muscle spindle and golgi tendon organ.

Ans: Spindle = belly; GTO = myotendinous junction

Why: The muscle spindle lies in the belly of the muscle and the GTO lies at the myotendinous junction.

Explanation & sources

Explanation

C swaps the locations. D and E are invented. The GTO is an encapsulated receptor that 10-15 muscle fibers pass through.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 142-143
206Muscle receptors

After your legs give out during a workout, you tell your friend your golgi tendon reflex saved you. How would you describe the anatomical location of the golgi tendon organ?

Ans: GTO location → myotendinous junction

Why: The Golgi tendon organ is located at the myotendinous junction.

Explanation & sources

Explanation

The belly holds the muscle spindle. C and D describe the spindle (Ia fibers, change in length), and neither is a location anyway. The GTO uses Ib fibers and senses tension.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 136-137
207asked 3×Muscle receptors

What is the primary sensory neuron in the muscle?

Ans: Primary spindle afferent → type Ia

Why: The Ia fiber is the primary afferent of the muscle spindle. It is the main sensory neuron of the stretch reflex and fires strongly with rapid stretch.

Explanation & sources

Explanation

Ib carries GTO signals. II is the secondary spindle afferent. Alpha and gamma are motor (efferent) neurons, not sensory.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 62-63
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 58-59
  • 2020 TA Review Exam 1 · TA review · slides 61-62
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 4
208top 215Muscle receptors

What are the afferent neural components for each receptor?

Ans: Spindle afferents Ia + II; GTO afferent Ib → E

Why: Muscle spindle afferents are Ia and II. The Golgi tendon organ afferent is Ib.

Explanation & sources

Explanation

A puts Ib on the spindle. B invents a 'Type Ic' fiber. C gives Ia to the GTO. D lists fibers that are not used by either receptor.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 87-88
209Muscle receptors

Just as the golgi tendon organ afferents run on type Ib fibers, muscle spindle afferents run on:

Ans: Spindle afferents → Ia + II

Why: Muscle spindle afferents are type Ia and II fibers.

Explanation & sources

Explanation

Ib belongs to the GTO, which rules out C and E. Type III fibers carry pain and pressure. IIa and IIb are not afferent labels used in the lecture.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 148-149
210top 215asked 3×Muscle receptors

What type of nerve fiber is associated with transmission of the golgi tendon signal?

Ans: GTO signal → type Ib

Why: Golgi tendon organ signals travel on type Ib fibers.

Explanation & sources

Explanation

Ia is the primary spindle afferent. 'Id' does not exist. IIa and IIb are not afferent labels in this lecture; spindle secondary afferents are just 'II'.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 54-55
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 136-137
  • 2022 TA Review - Exam 1 · TA review · slides 77-78
211Muscle receptors

Which describes the fibers that transmit GTO signals?

Ans: GTO signals → large, rapidly conducting type Ib

Why: Lecture: GTO signals are transmitted through a large, rapidly conducting type Ib nerve fiber.

Explanation & sources

Explanation

Large fibers conduct fast, so 'large, slowly conducting' and 'small, rapidly conducting' are mismatched. Ia belongs to the spindle and is also large and fast.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 108-109
212Muscle receptors

Match the sensory fibers with either the muscle spindle or the golgi tendon organ: Ia fibers, Ib fibers, II fibers.

AnswerIa: muscle spindle; Ib: Golgi tendon organ; II: muscle spindle.

Ans: Spindle afferents Ia + II; GTO afferent Ib

Why: The muscle spindle has two afferents, Ia and II. The GTO has one, Ib.

Explanation & sources

Explanation

A common trap is pairing Ia with Ib on the same receptor. Remember 'b' for tendon: Ib = GTO.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slide 100
213Muscle receptors

What are the primary components of the muscle spindle?

Answer3-12 intrafusal fibers in a 3-10 mm spindle, surrounded by large extrafusal fibers; motor supply by gamma motor neurons (alpha supplies extrafusal fibers); sensory supply by Ia and II afferents.

Ans: Spindle = intrafusal fibers + gamma efferent + Ia/II afferents

Why: A spindle holds 3-12 intrafusal fibers surrounded by extrafusal fibers. Gamma motor neurons supply the intrafusal fibers, and Ia and II fibers carry its sensory signals.

Explanation & sources

Explanation

Its central region has the sensory receptors and does not contract. The ends contract when gamma motor neurons fire.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 90-91
Lecture slide (1)
Week 4 · Written Review deck · slide 26

4.3 · 11 questions · Questions 214–224

Muscle spindle

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The muscle spindle reports length and the rate of change of length, for both lengthening and shortening. It does not sense tension (that is the GTO).

EventSpindle responseResult
Slow stretchStatic response: afferents fire in proportion to the degree of stretchNo strong contraction; this is why OMT stretches slowly
Sudden / too-fast stretchDynamic response: Ia (and II) afferents fire powerfully (rate-sensitive)Muscle contracts powerfully: the stretch reflex
Muscle shortenedOpposite signal: afferent firing dropsMuscle relaxes (basis of counterstrain)

The stretch (muscle spindle) reflex: a quick stretch fires spindle afferents (Ia, II), which excite alpha motor neurons, so the same muscle contracts. It protects against overstretch and regulates length automatically (e.g. the knee jerk; a sudden split tightening the hamstring). The antagonist relaxes at the same time (reciprocal inhibition).

Clinical application: if a muscle suddenly tightens during a stretch or myofascial technique, you went too fast and triggered the dynamic response of the muscle spindle via afferent Ia and II fibers. Static and dynamic responses belong to the spindle, not the GTO. One myofascial goal is to stimulate the stretch reflex in hypotonic muscles.

214asked 2×Muscle spindle

What does the muscle spindle respond to and what are its afferents?

Ans: Spindle senses length + rate of change; afferents Ia + II

Why: The muscle spindle responds to change in length and rate of change of length, and its afferents are Ia and II.

Explanation & sources

Explanation

B has the right stimulus but adds Ib, the GTO fiber. C describes the GTO (tension) and names a motor neuron as an afferent. A is incomplete and includes Ib.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 60-61
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 61-62
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 3
215top 215asked 2×Muscle spindle

Which is true of the muscle spindle?

Ans: Spindle = length + rate of change of length

Why: The muscle spindle responds to change in length and the rate of change of length.

Explanation & sources

Explanation

The spindle reflex contracts the muscle in response to stretch; relaxing is a GTO effect. Afferents fire especially powerfully when length increases suddenly (dynamic response), not slowly.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 68-69
  • 2022 TA Review - Exam 1 · TA review · slides 51-52
Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 3
Week 4 · IA4 Neuromuscular · slide 4
216Muscle spindle

Which of the following is true about muscle spindles?

Ans: Spindle reports lengthening (→ contraction) and shortening (→ inhibition) → both

Why: When a muscle lengthens or shortens, the spindle conveys it: lengthening leads to contraction (stretch reflex) and shortening leads to inhibition.

Explanation & sources

Explanation

A and B each give only half of the lecture statement. D and E are unrelated to spindle function.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 145-146
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 4
217Muscle spindle

The muscle spindles are directly associated with length of the muscle. However, their response is also linked to:

Ans: Spindle = length + RATE of change (lengthening or shortening); tension = GTO

Why: Besides length, the spindle responds to the rate of change in length, whether the muscle is being lengthened or shortened.

Explanation & sources

Explanation

Tension is sensed by the Golgi tendon organ, which removes A and therefore D.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 151-152
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 3
218Muscle spindle

The muscle spindle also detects shortening of the muscle. Which of the following most accurately describes the effects of rapidly shortening the muscle in regards to the muscle spindle reflex?

Ans: Spindle shortens → afferent firing drops → muscle relaxes

Why: When the spindle shortens, the opposite sensory signals occur and the muscle relaxes. The spindle responds to length, not tension.

Explanation & sources

Explanation

A is the response to rapid lengthening (stretch reflex). B describes the GTO, which senses tension, so E is also wrong. D describes the crossed extensor reflex.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 155-156
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 4
219Muscle spindle

Which response is elicited when the muscle spindle is stretched slowly?

Ans: Slow stretch → signals proportional to stretch → static response

Why: When the spindle is stretched slowly, afferent signals are sent in proportion to the degree of stretch. This steady signal is the static response.

Explanation & sources

Explanation

The dynamic response is the burst of firing with a sudden stretch. OMT stretches slowly to stay in the static response and avoid reflex contraction.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 102-105
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 2
220Muscle spindle

Which response is elicited when the muscle spindle is stretched suddenly?

Ans: Sudden length increase → powerful afferent burst → dynamic response

Why: A sudden increase in spindle length stimulates the afferents powerfully. This excess stimulus is the dynamic response, which is sensitive to the rate of change.

Explanation & sources

Explanation

The static response is the steady, proportional signal during a slow stretch. The dynamic response makes the muscle contract powerfully.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 103-105
Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 3
Week 4 · IA4 Neuromuscular · slide 4
221top 215asked 8×2026Muscle spindle

While practicing OMM in preparation for the exam, you perform a lateral stretching technique. However, in your enthusiasm, you engage the stretch too quickly. The muscle contracts in response. Which type of neurological response has been engaged and which receptors have been activated?

Ans: Too-fast stretch → rate-sensitive spindle burst → contraction = dynamic response of spindle

Why: A quick stretch triggers the dynamic response of the muscle spindle: Ia afferents fire powerfully and the muscle contracts (stretch reflex) to protect itself.

Explanation & sources

Explanation

Static and dynamic responses belong to the spindle, not the GTO, and the GTO inhibits rather than contracts. The static response happens with a slow stretch and does not cause a strong contraction. 'Golgi spindle' is not a real structure.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 51-52
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 6
Week 4 · IA4 Neuromuscular · slide 3
222asked 2×Muscle spindle

You are performing a myofascial technique on your patient when you suddenly feel their muscles tighten up. Why did this occur and what is the physiological explanation?

Ans: Sudden tightening → stretch too fast → spindle afferents Ia + II → strong contraction

Why: Stretching too quickly fires the spindle afferents (Ia and II) at a high rate, producing a strong reflex contraction. Go slow to keep the muscle relaxed.

Explanation & sources

Explanation

Ia and II are afferent (sensory), not efferent, which removes A and B. D includes Ib, the GTO afferent, which causes relaxation, not contraction.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 56-57
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 57-58
Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 3
Week 4 · IA4 Neuromuscular · slide 4
223Muscle spindle

Your patient is a 38-year-old female complaining of right hamstring pain after trying to do the splits for the first time since high school. What nerve fibers are involved in the reflex causing the contraction of her hamstring?

Ans: Sudden overstretch → stretch reflex (spindle) → Ia + II afferents

Why: The sudden stretch triggered the stretch reflex of the muscle spindle, whose afferents are type Ia and II. The muscle contracts to prevent over-stretching.

Explanation & sources

Explanation

Ib is the GTO fiber, which would cause relaxation, so A and B are wrong. 'Type I' is too vague; the spindle primary afferent is specifically Ia.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 67-68
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 26
224Muscle spindle

What is the stretch reflex?

AnswerMuscle spindle reflex: a quick stretch fires spindle afferents (Ia, II), which excite alpha motor neurons so the stretched muscle contracts powerfully. It is protective (e.g., knee-jerk). The spindle senses length and rate of change of length.

Ans: Fast stretch → spindle Ia burst → alpha motor neuron → same muscle contracts

Why: The stretch reflex is contraction of a muscle in response to passive stretch. It protects against injury and regulates muscle length automatically, as in the knee-jerk reflex.

Explanation & sources

Explanation

A goal of myofascial treatment is a stimulatory effect on the stretch reflex in hypotonic muscles. The reflex also relaxes the antagonist through reciprocal inhibition.

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  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'What is the stretch reflex?'
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 26

4.4 · 8 questions · Questions 225–232

Alpha & gamma motor neurons

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Alpha motor neuron (Type A-alpha)Gamma motor neuron
SuppliesExtrafusal fibers (the bulk of the muscle); alpha + its fibers = the motor unitIntrafusal fibers inside the muscle spindle
EffectTells the muscle to contractTells the intrafusal fibers to contract (at the ends of the spindle)

The spindle contains intrafusal fibers and is surrounded by extrafusal fibers. Its central region lacks myofibrils, holds the sensory receptors and does not contract; only the ends contract when gamma fires. Gamma firing pulls on the center, stretching the receptors: this sets the spindle's sensitivity (the “gain” of the stretch reflex) and the baseline activity of the motor neuron.

Alpha–gamma co-activation: alpha and gamma fire together. Whenever a muscle contracts/shortens (e.g. a biceps curl), gamma neurons also fire so the spindle shortens with the muscle and stays taut, still able to sense stretch. A shortened spindle is the result gamma firing corrects, not its trigger, so “during muscle contraction” beats “when the spindle length is shortened”. Gamma does not fire because alpha is inhibited, because of GTO stimulation, or because of a too-fast stretch (that is the Ia stretch reflex).

The GTO has no motor supply (only Ib afferents).

225top 215Alpha & gamma motor neurons

The muscle spindle contains ____ and is surrounded by ____

Ans: Inside spindle = intrafusal; outside = extrafusal

Why: The spindle contains 3-12 intrafusal fibers and is surrounded by large extrafusal fibers.

Explanation & sources

Explanation

Alpha motor neurons innervate extrafusal fibers and gamma motor neurons innervate intrafusal fibers, but neurons are not what the spindle 'contains'. Alpha and gamma fire together (co-activation) so the spindle keeps reporting accurately.

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Lecture slide (1)
Week 4 · Written Review deck · slide 26
226Alpha & gamma motor neurons

What is the function of the alpha motor neurons?

Ans: Alpha motor neuron → extrafusal fibers → muscle contracts

Why: The alpha motor neuron (Type A alpha) instructs the extrafusal fibers to contract. It and its fibers form the motor unit.

Explanation & sources

Explanation

Relaxation and response to tension describe the GTO pathway, which acts through an inhibitory interneuron. Alpha neurons carry the contraction signal; they do not inhibit.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 92-93
Lecture slide (1)
Week 4 · Written Review deck · slide 26
227top 215Alpha & gamma motor neurons

Where are the gamma motor neurons located? And what is their function?

Ans: Gamma → muscle spindle → intrafusal fibers contract

Why: Gamma motor neurons supply the muscle spindle and instruct the intrafusal fibers to contract.

Explanation & sources

Explanation

The GTO has no motor supply, only Ib afferents. Extrafusal fibers are driven by alpha motor neurons.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 94-95
Lecture slides (2)
Week 4 · Written Review deck · slide 26
Week 4 · IA4 Neuromuscular · slide 25
228Alpha & gamma motor neurons

The ____ region of the muscle spindle lacks myofibrils and therefore does not contract.

AnswerCentral region

Ans: No myofibrils → central region; ends contract via gamma

Why: The central region of the spindle lacks myofibrils and does not contract. It holds the sensory receptors. The ends contract when gamma motor neurons fire.

Explanation & sources

Explanation

Gamma firing contracts the ends, which stretches the central region and makes the receptors fire. That is the second way to stretch the spindle besides lengthening the whole muscle.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 96-97
229Alpha & gamma motor neurons

Where do the gamma motor neurons induce contraction of the muscle spindle?

Ans: Center has no myofibrils → gamma contracts the ends

Why: Gamma motor neurons cause contraction at the ends of the spindle. The central region lacks myofibrils and cannot contract.

Explanation & sources

Explanation

The middle is the sensory region, stretched when the ends contract. 'Lateral aspects' is not how the lecture describes it.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 98-99
230asked 5×2026Alpha & gamma motor neurons

When would the gamma motor neurons be stimulated?

Ans: Alpha-gamma co-activation → gamma fires whenever the muscle contracts/shortens

Why: With alpha-gamma co-activation, gamma motor neurons fire whenever alpha motor neurons tell the muscle to contract and shorten (e.g., a biceps curl). This keeps the spindle taut so it still senses stretch.

Explanation & sources

Explanation

Gamma fires with alpha, not when alpha is inhibited. A too-fast stretch triggers the spindle's Ia afferents and the stretch reflex, not gamma firing. A neutral, resting muscle has no change to adjust for.

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  • 2026 OMM1 IA4 Neuromuscular Physiology (Poll Everywhere) · In-class poll · slides 22-23
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 24
Week 4 · IA4 Neuromuscular · slide 25
231top 215asked 3×2026Alpha & gamma motor neurons

When would the gamma motor neurons be stimulated?

Ans: Co-activation: alpha + gamma fire together → during muscle contraction

Why: Alpha and gamma motor neurons fire together, so gamma neurons are stimulated during muscle contraction. The spindle shortens along with the muscle and keeps working as a stretch sensor.

Explanation & sources

Explanation

GTO stimulation inhibits the muscle; it does not drive gamma. Gamma fires with alpha, not when alpha is inhibited. Slow lengthening gives the spindle's static response. 'Spindle shortened' is the result of gamma firing, not the trigger.

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Week 4 · IA4 Neuromuscular · slide 24
Week 4 · IA4 Neuromuscular · slide 25
232asked 3×2026Alpha & gamma motor neurons

Stimulation of the gamma motor neurons results in which of the following?

AnswerContraction of the intrafusal fibers (the ends of the spindle).

Ans: Gamma → intrafusal fibers → ends of spindle contract

Why: Gamma motor neurons make the intrafusal fibers contract at the ends of the spindle. This sets spindle tension, the 'gain' of the stretch reflex.

Explanation & sources

Explanation

Alpha motor neurons contract the extrafusal fibers. Gamma activity sets the baseline activity of the motor neuron and helps regulate muscle length and tone.

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  • 2026 OMM1 IA4 Neuromuscular Physiology (Poll Everywhere) · · slide 24 (follow-up)
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Week 4 · IA4 Neuromuscular · slide 24
Week 4 · IA4 Neuromuscular · slide 25

4.5 · 10 questions · Questions 233–242

Golgi tendon organ

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The Golgi tendon organ senses tension created by contracting or stretching the muscle (not “only stretching”). It is a negative feedback mechanism that prevents too much tension from developing.

Pathway (Golgi tendon reflex): GTO fires (Ib) → excites an inhibitory interneuron in the cord → the alpha motor neuron is inhibited → the same muscle relaxes. When tension, and therefore inhibition, becomes extreme, the entire muscle relaxes and the load is dropped: the lengthening reaction. This protects the muscle from excessively heavy loads.

Recognize it: arms or legs suddenly “give out” under a heavy load (grocery bags, a stack of books, a 100 lb weight, the millionth squat) = GTO / Golgi tendon reflex. The spindle reflex does the opposite (makes the muscle contract) and the biceps/triceps hammer reflexes are spindle reflexes.

Using it in OMT: having a tight (hypertonic) muscle contract against resistance builds tension that the GTO senses, which inhibits that muscle so it can be stretched further. If asked for the receptor, answer the GTO; if asked for the named principle/technique, answer post-isometric relaxation: right after an isometric contraction of the tight muscle it is in a refractory state, so slack can be taken up without stretch-reflex opposition. (Contracting the antagonist instead would be reciprocal inhibition.)

Lecture slides for this section (2)
Written Review slide 24: the Golgi tendon reflex
IA6 slide 8: post-isometric relaxation
233top 215asked 2×Golgi tendon organ

Which does NOT describe the Golgi Tendon Organ?

Ans: GTO fires with tension from contracting OR stretching → 'only stretching' is false

Why: The GTO is stimulated by tension created by contracting OR stretching the muscle. The word only makes C false.

Explanation & sources

Explanation

A is the lecture's definition of the GTO: a negative feedback mechanism. B is the lengthening reaction, where extreme tension relaxes the whole muscle and you drop the load.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 70-71
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 8
Week 4 · Written Review deck · slide 24
234top 215asked 2×Golgi tendon organ

After a trip to the grocery store, you decide that you can carry all of your shopping bags inside in one trip. After loading 7 bags on each arm, you begin walking to the door and suddenly drop everything unwillingly. What was activated in your muscles and how did this process occur?

Ans: Heavy load → high tension → GTO → excites inhibitory interneuron → alpha output drops

Why: Extreme tension activates the Golgi tendon organ. Its signal excites a single inhibitory interneuron, which cuts alpha motor output to that muscle so it relaxes and drops the load.

Explanation & sources

Explanation

The spindle senses length, not load. In C, inhibiting an inhibitory interneuron would increase muscle activity, the opposite of what happens. An 'excitatory interneuron to relax' makes no sense.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 58-59
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 59-60
Lecture slide (1)
Week 4 · Written Review deck · slide 24
235Golgi tendon organ

A 35-year-old man tries carrying all the heavy grocery bags up his 4-story walk-up in one trip, but drops them after his arms suddenly 'give out'. Which of the following was activated?

Ans: Arms give out under heavy load → tension → GTO

Why: Heavy load creates high tension, which activates the Golgi tendon organ. Its inhibitory reflex relaxes the muscle (lengthening reaction).

Explanation & sources

Explanation

The spindle responds to stretch and makes the muscle contract, not give out. The biceps and triceps reflexes are spindle stretch reflexes tested with a hammer.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 106-107
Lecture slide (1)
Week 4 · IA4 Neuromuscular · slide 8
236Golgi tendon organ

A 26-year-old school teacher is changing classrooms. She was carrying a heavy stack of books to her new room, but before she was able to make it to her destination they became too heavy and she drops them all. What reflex is responsible for causing her to drop all her books?

Ans: Too heavy → excess tension → GTO reflex → muscle relaxes

Why: Excess tension fires the Golgi tendon organ reflex, which inhibits the muscle so it relaxes and the load drops.

Explanation & sources

Explanation

The stretch reflex and muscle spindle reflex are the same reflex, and they cause contraction. The biceps reflex is a spindle reflex tested with a hammer.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 65-66
Lecture slide (1)
Week 4 · Written Review deck · slide 24
237Golgi tendon organ

Tiger is holding a 100 lb weight in his arms because he thinks he is stronger than Brandon. However, his arms give out and the weight drops to the floor. What is the name of this reflex and which muscle receptor is involved?

Ans: Arms give out under load → tension → Golgi tendon reflex via GTO

Why: The heavy weight creates extreme tension, so the Golgi tendon reflex through the Golgi tendon organ relaxes the muscle.

Explanation & sources

Explanation

A and C mismatch the reflex and its receptor. B, the spindle reflex, contracts the muscle and would not make the arms give out.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 91-92
Lecture slides (2)
Week 4 · Written Review deck · slide 24
Week 4 · IA4 Neuromuscular · slide 8
238top 215asked 2×Golgi tendon organ

You are working out with your friend at the gym and they are putting you through an intense workout. As you are doing what feels like your millionth squat, you feel your legs give out. What reflex is most likely elicited to protect your legs?

Ans: Legs give out under high tension → protective GTO inhibition

Why: High muscle tension activates the Golgi tendon reflex, which inhibits the muscle to prevent damage. That is why the legs give out.

Explanation & sources

Explanation

The spindle reflex responds to stretch and causes contraction. Reciprocal inhibition relaxes the antagonist when the agonist contracts. The crossed extensor reflex involves the opposite limb (step on a nail, the other leg extends).

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  • 2023 TA Review - Written Exam 1 · TA review · slides 133-134
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 139-140
Lecture slide (1)
Week 4 · Written Review deck · slide 24
239Golgi tendon organ

Which of the following scenarios describes the "Lengthening Reaction"?

Ans: Extreme tension → GTO inhibition → whole muscle relaxes = lengthening reaction

Why: The lengthening reaction is a GTO effect: when tension, and so the inhibitory effect, becomes extreme, the entire muscle relaxes.

Explanation & sources

Explanation

Stretching the belly signals the spindle, which makes the muscle contract (stretch reflex), the opposite of lengthening.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 114-115
240top 215Golgi tendon organ

In regards to the ____, when tension and therefore inhibitory effect is extreme it leads to relaxation of the entire muscle called the ____.

Ans: Tension + inhibition → GTO; whole-muscle relaxation → lengthening reaction

Why: Tension is sensed by the Golgi tendon organ, and extreme inhibition that relaxes the whole muscle is the lengthening reaction.

Explanation & sources

Explanation

The muscle spindle senses length, not tension. There is no 'shortening reaction' in the lecture. (AT Still was born in 1828.)

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 157-158
241top 215asked 7×2026Golgi tendon organ

A patient comes in after going to an 'advanced' yoga class, for which she was not prepared. She complains of tight hamstring muscles. After passively and slowly stretching her hamstring muscles you reassess to find minimal change in the hypertonicity. You then remember that adding an active component to the stretch by having her contract the hypertonic muscles against resistance can enhance the effectiveness. Which muscle receptor is being engaged more strongly and through which process?

Ans: Contract the tight muscle against resistance → tension → GTO → inhibition

Why: Contracting the hypertonic muscle against resistance builds tension, which the Golgi tendon organ senses. The GTO then inhibits that muscle so it relaxes.

Explanation & sources

Explanation

A attaches the right mechanism (tension) to the wrong receptor. B and C describe length changes, which the spindle senses, but the active contraction works through tension. E gives the GTO intrafusal fibers, which belong only to the spindle.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 55-56
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 11
Week 4 · IA4 Neuromuscular · slide 8
242top 215asked 3×2026Golgi tendon organ

A 46-year-old female presents to Urgent Care with complaints of leg pain and tight hamstrings. The pain began after going to an 'advanced' yoga class, for which she was not prepared. After passively and slowly stretching her hamstring muscles you reassess to find minimal change in the hypertonicity. You then recall that adding an active component to the stretch by having her contract the hypertonic muscles against resistance can enhance the effectiveness. Which physiologic principle is being employed?

Ans: Tight muscle contracts isometrically against resistance → then stretch → post-isometric relaxation

Why: Post-isometric relaxation: right after an isometric contraction of the tight muscle, it is in a refractory state, so you can take up the slack without stretch-reflex opposition. GTO tension provides the inhibition.

Explanation & sources

Explanation

GTO physiology is the receptor mechanism, but the named principle (technique) is post-isometric relaxation. A different question asks for the receptor and the answer there is the GTO. Crossed extensor uses the opposite limb, and contracting the antagonist would be reciprocal inhibition.

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Week 6 · IA6 ME, CS, HVLA · slide 8
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4.6 · 7 questions · Questions 243–249

Reciprocal inhibition & crossed extensor

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Three reflexes relax a target muscle. The difference is which muscle contracts:

ReflexContractWhat relaxesExample
Post-isometric relaxation (GTO)The tight muscle itselfThe same muscleTight R biceps contracts against resistance
Reciprocal inhibitionThe antagonist, same limbThe agonistContract R triceps → R biceps relaxes; contract quads → hamstrings relax
Crossed extensorThe same muscle in the opposite limbThat muscle on the other sideContract L biceps → R biceps relaxes; contract L hamstring → R hamstring relaxes

Reciprocal inhibition occurs in the stretch reflex and in any contraction: when an agonist contracts, its antagonist must relax. It uses a very gentle force (ounces, not pounds), which suits sore, acutely tight muscles. Knee jerk: tapping the patellar tendon stretches the quadriceps spindle → quadriceps (extensor) contracts and hamstrings (flexor) relax in the same (ipsilateral) leg.

Crossed extensor in OMT: used when the injured limb cannot be treated directly (burns, fractures, severe strain or pain). Lecture example: stretch reflex to the R biceps causes relaxation of the L biceps (same muscle, opposite side). Options that pair same-side agonist/antagonist are reciprocal inhibition, not crossed extensor.

Lecture slide for this section (1)
Written Review slide 25: reciprocal inhibition and the knee jerk
243top 215asked 4×2026Reciprocal inhibition & crossed extensor

A patient comes in after going to an 'advanced' yoga class, for which she was not prepared. She complains of very sore and tight hamstring muscles. You decide to have her contract the antagonist muscles as a way to ease into the treatment. Which physiologic principle are you employing?

Ans: Contract antagonist (quads) → reflex relaxation of hamstrings → reciprocal inhibition

Why: Contracting the antagonist (quadriceps) reflexively relaxes the tight hamstrings. This is reciprocal inhibition, and it occurs with any contraction.

Explanation & sources

Explanation

GTO physiology would mean contracting the tight hamstring itself. The crossed extensor reflex uses the opposite limb. Reciprocal inhibition uses a very gentle force (think ounces, not pounds), which suits sore, acutely tight muscles.

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  • 2026 OMM1 IA4 Neuromuscular Physiology (Poll Everywhere) · In-class poll · slides 13-14
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 14
Week 4 · Written Review deck · slide 25
244asked 3×Reciprocal inhibition & crossed extensor

A 30-year-old male comes into the clinic with a right hypertonic biceps. You tell the patient to engage the right triceps, eliciting which reflex?

Ans: Same-side antagonist (triceps) contracts → agonist (biceps) relaxes → reciprocal inhibition

Why: Contracting the ipsilateral antagonist (right triceps) reflexively relaxes the right biceps. That is reciprocal inhibition.

Explanation & sources

Explanation

The Golgi tendon reflex would mean contracting the biceps itself. The cross-extensor reflex would use the left arm. The spindle reflex contracts a stretched muscle.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 131-132
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Lecture slide (1)
Week 4 · Written Review deck · slide 25
245Reciprocal inhibition & crossed extensor

Which of the following reflexes occurs during any contraction?

Ans: Every agonist contraction → antagonist must relax → reciprocal inhibition

Why: Reciprocal inhibition occurs in the stretch reflex and in any contraction: when an agonist contracts, its antagonist must relax.

Explanation & sources

Explanation

The Golgi tendon reflex needs significant tension. The spindle reflex needs a stretch. The crossed extensor reflex involves the opposite limb.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 160-161
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Week 4 · Written Review deck · slide 25
246asked 2×Reciprocal inhibition & crossed extensor

You visit your PCP and have your reflexes tested. The doctor taps your patellar tendon with the reflex hammer. What actions will your muscles elicit?

Ans: Tap stretches quads spindle → quads contract + hamstrings relax (reciprocal inhibition), same leg

Why: The tap stretches the quadriceps spindle, so the quadriceps (extensor) contracts through the stretch reflex. Through reciprocal inhibition the hamstrings (flexor) relax in the same leg.

Explanation & sources

Explanation

The knee jerk is a single-leg reflex, so the contralateral options are wrong. Both muscles cannot relax, because the extensor must contract to kick.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 97-98
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Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 26
Week 4 · Written Review deck · slide 25
247asked 3×Reciprocal inhibition & crossed extensor

Which of the following describes the cross-extensor reflex?

Ans: Crossed extensor = opposite side, SAME muscle relaxes → R biceps → L biceps

Why: The lecture's example of the crossed extensor reflex: a stretch reflex to the R biceps causes relaxation of the L biceps, the same muscle on the opposite side.

Explanation & sources

Explanation

C and D are same-side antagonist pairs, which is reciprocal inhibition. A and B cross sides but change muscle groups. In muscle energy, contracting a flexor in one limb relaxes the flexor in the opposite limb.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 128-129
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248top 215asked 2×Reciprocal inhibition & crossed extensor

After hitting the gym a little too hard and doing too many bicep curls, you feel extreme pain and can't move your biceps on the right. Your friend asks you to tuck your left elbow to your side and have your palm face up, then push upwards while they provide isometric resistance. What technique did your friend use and what is the goal?

Ans: Injured R biceps + contract L biceps → same muscle, other limb → crossed extensor

Why: Contracting the left biceps to relax the injured right biceps uses the crossed extensor reflex: contracting a muscle group in one limb relaxes the same group in the opposite limb.

Explanation & sources

Explanation

Reciprocal inhibition would contract the right triceps. Isolytic lengthening uses an operator force greater than the patient's to stretch fibrotic tissue; D pairs that name with the crossed extensor definition. Crossed extensor is used when the injured limb cannot be treated directly (burns, fractures, severe strain).

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 95-96
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249Reciprocal inhibition & crossed extensor

A 14-year-old boy presents with right hamstring tightness following a soccer game. The physician decides to use a form of muscle energy that takes advantage of the crossed extensor reflex. The patient is instructed to contract his left hamstring while the physician monitors the restricted right hamstring. Which of the following best explains the physiologic basis of this technique?

Ans: Contract L hamstring → crossed spinal pathway → R hamstring relaxes

Why: Through crossed extensor pathways, voluntary contraction of the left hamstring reflexively relaxes the right hamstring.

Explanation & sources

Explanation

The GTO acts only on its own muscle, so it cannot explain relaxation on the other side. The reflex relaxes, not contracts, the opposite flexor. E is a true mechanism (reciprocal inhibition) but not the technique described.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 123-124

4.7 · 9 questions · Questions 250–258

Types of muscle contraction

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ContractionLengthForces (Dr vs Pt)Example
ConcentricShortens; origin and insertion approximatePt > loadLifting a weight in a curl (tension varies through the arc)
IsotonicShortens with constant tension; course: “fix only one end of the attachment”Dr < PtCurling up when the stem says tension does not change; used for hypotonic, reflexively inhibited muscles
IsometricNo change; tension rises without approximation; origin and insertion stationaryDr = PtHolding a weight steady at 90°; the most common contraction in muscle energy
EccentricLengthens while contractingLoad > PtLowering a weight under control
IsolyticLengthened by a greater outside force while the patient contractsDr > PtToo-heavy weight pulls the arm down; used to break adhesions in fibrotic, shortened tissue

Decision tips: “lifting” → concentric, unless the stem says tension is constant → isotonic. “Holding still” → isometric. “Lowering” → eccentric, unless an outside force is overpowering the muscle or the goal is to break adhesions → isolytic. “Iso-metric” = same length; “iso-tonic” = same tension.

250top 215asked 2×2026Types of muscle contraction

Select the type of muscle contraction most closely associated with the description: the activity of the biceps muscle during the elevation of a weight while performing a curling maneuver.

Ans: Lifting = attachments approximate while contracting → concentric

Why: Lifting a weight is a concentric contraction: the muscle shortens and its origin and insertion approximate.

Explanation & sources

Explanation

It is not isotonic in the textbook's view because tension changes as the weight swings through its arc. Eccentric is lowering. Isometric is holding still. Isolytic is a lengthening contraction overpowered by an outside force.

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  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.15 Q12 (answer key p.18)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 23 (answer slide 24); textbook TB_Basics.pdf p.15 Q12
251top 215asked 2×2026Types of muscle contraction

Select the type of muscle contraction most closely associated with the description: the activity of the biceps muscle while holding a weight steady with arms flexed at 90 degrees.

Ans: Holding steady = no length change → isometric

Why: Holding a weight still is isometric: muscle force equals the load, so length does not change and origin and insertion stay put.

Explanation & sources

Explanation

Concentric shortens and eccentric lengthens. Isolytic needs an outside force that lengthens the muscle. Isometric is the most common contraction used in muscle energy.

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  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.15 Q13 (answer key p.18)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 25 (answer slide 26); textbook TB_Basics.pdf p.15 Q13
252top 215asked 2×2026Types of muscle contraction

Select the type of muscle contraction most closely associated with the description: the activity of the biceps muscle while lowering a weight during a curling exercise.

Ans: Lowering under control = contracting while lengthening → eccentric

Why: Lowering a weight is eccentric: the biceps contracts while it lengthens under an external force.

Explanation & sources

Explanation

Concentric is the lifting phase. Isolytic is a special eccentric contraction in OMT where the operator's force exceeds the patient's to break adhesions. Isometric involves no movement.

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  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.15 Q14 (answer key p.18)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 27 (answer slide 28); textbook TB_Basics.pdf p.15 Q14
253top 215asked 2×2026Types of muscle contraction

Select the type of muscle contraction most closely associated with the description: muscle contraction against resistance while an external force causes the muscle to lengthen with the purpose of breaking adhesions.

Ans: Lengthened by greater outside force + breaks adhesions → isolytic

Why: Isolytic contraction: the counterforce is greater than the patient's force, so the muscle lengthens while contracting. It is used to break adhesions in fibrotic, shortened tissue.

Explanation & sources

Explanation

Eccentric also lengthens, but 'breaking adhesions' with an operator force is the defining feature of isolytic. Concentric shortens and isometric does not move.

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  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.15 Q15 (answer key p.18)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 29 (answer slide 30); textbook TB_Basics.pdf p.15 Q15
254Types of muscle contraction

You hold a dumbbell with your arm flexed at 90 degrees without letting it drop. What is the activity of the biceps when you are holding the weight steady?

Ans: Steady = same length (iso-metric) → isometric

Why: Isometric means same length: the arm opposes the weight with equal force, so the muscle length does not change.

Explanation & sources

Explanation

Isolytic means the muscle is lengthened. Concentric and isotonic both involve shortening.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 102-103
255Types of muscle contraction

You hold a dumbbell with your arm flexed at 90 degrees, but this time it's too heavy and it's bringing your arm down. What is the activity of the biceps when your arm is being lowered?

Ans: External force > muscle force → muscle lengthens while contracting → isolytic

Why: The external force is greater than the muscle's force, so the contracting biceps is lengthened. That is isolytic (Dr > Pt).

Explanation & sources

Explanation

Isometric would hold still (Dr = Pt). Concentric and isotonic shorten the muscle (Dr < Pt). Eccentric is the general term for lengthening contractions, but it is not an option here.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 104-105
256Types of muscle contraction

You hold a dumbbell with your arm flexed at 90 degrees, but this time you got stronger and were able to bring it up for a bicep curl. What is the activity of the biceps when the weight is brought up? (considering there is no change in tension for the sake of simplicity)

Ans: Shortens + tension held constant (iso-tonic) → isotonic

Why: With tension stated as constant, lifting the weight is isotonic (same tension): the muscle force exceeds the load and the muscle shortens.

Explanation & sources

Explanation

Concentric also shortens, but the stem's 'no change in tension' points to isotonic. When tension varies through the arc, the textbook calls a curl concentric. Isometric holds still and isolytic lengthens.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 106-107
257Types of muscle contraction

Which of the following statements concerning muscle contraction is correct?

Ans: Isometric = tension rises, length fixed (no approximation)

Why: In an isometric contraction, tension increases while origin and insertion do not approximate.

Explanation & sources

Explanation

Isotonic contraction approximates origin and insertion with constant tension, so A and E change the tension. B gives isometric approximation, which it lacks. C describes isometric but calls it isotonic.

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  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 65-66
258top 215Types of muscle contraction

Match each contraction type (isotonic, isometric, isolytic) to its description: A. Lengthening the muscle as the patient actively contracts it; B. Contracting a muscle while fixing only one end of the muscular attachment; C. Origin and insertion points are maintained in a stationary position while the muscle is contracted against resistance.

AnswerIsotonic: B; Isometric: C; Isolytic: A.

Ans: Stationary attachments = isometric; one end fixed = isotonic; lengthened while contracting = isolytic

Why: Per the course: isometric keeps origin and insertion stationary against resistance, isotonic fixes only one end of the attachment, and isolytic lengthens the muscle while the patient contracts it.

Heads up: The 2023 TA answer slide matched Isotonic to C and Isometric to B. The 2026 Lect 6 slide 31 defines isometric as origin and insertion kept stationary (C) and isotonic as fixing only one end (B), so those two are swapped on that slide. Isolytic to A is correct.

Explanation & sources

Explanation

Isometric is the most common contraction in muscle energy. Isotonic is often used for hypotonic, reflexively inhibited muscles. Isolytic treats fibrotic, chronically shortened tissue.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 145-146

4.8 · 5 questions · Questions 259–263

Technique physiology

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Each soft tissue / OMT technique relies on a piece of neuromuscular physiology:

TechniqueMechanism
Kneading (intermittent force on paraspinals)Muscle spindle principles: go slowly so the rate-sensitive spindle does not fire a reactive contraction
Cross-arm technique (bilateral stretch, steady force increased slowly)Golgi tendon reflex: built-up tension → lengthening reaction
Bilateral linear cervical stretchDone slowly to prevent muscle spindle activation (also linked to the GTO when that option is offered)
CounterstrainPassive shortening of the hypertonic muscle reduces spindle afferent input, resetting the overactive spindle so the muscle relaxes
Contract the antagonistReciprocal inhibition

Direct vs indirect: shortening a hypertonic muscle moves it away from the barrier toward ease → indirect (e.g. counterstrain). Stretching it engages the barrier → direct; perpendicular and parallel stretches are both direct.

259top 215asked 7×2026Technique physiology

Shortening a hypertonic muscle with OMT would be an example of which kind of technique?

Ans: Shortening = moving away from the barrier toward ease → indirect

Why: Shortening a hypertonic muscle moves it away from the restrictive barrier toward ease, so it is an indirect technique.

Explanation & sources

Explanation

Stretching a hypertonic muscle engages the barrier, which is direct. Perpendicular and parallel stretches are both direct stretching techniques, and shortening is not stretching. Counterstrain is the classic indirect technique that shortens a muscle.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 57-58
  • 2026 OMM1 IA4 Neuromuscular Physiology (Poll Everywhere) · In-class poll · slides 17-18
  • 2025 (PE) IA 4 - Neurophysiology · In-class poll · slides 24-26
  • 2024 IA 4 - Neurophysiology SD · In-class poll · slides 19-20
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 62-63
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 62-63
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 120-121
Lecture slides (2)
Week 4 · IA4 Neuromuscular · slide 18
Week 6 · IA6 ME, CS, HVLA · slide 23
260asked 3×Technique physiology

Kneading uses which physiological mechanism?

Ans: Kneading = intermittent force, go slow so spindle doesn't fire → muscle spindle principle

Why: The lecture pairs kneading of the paraspinals with muscle spindle principles: the spindle responds to length and rate of change of length, so you go slow to avoid a reactive contraction.

Explanation & sources

Explanation

The lecture's GTO example is the steady bilateral stretch (cross-arm technique). The accommodation, rooting and Hering-Breuer reflexes are not muscle reflexes used in OMT.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 122-123
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 61-62
  • 2020 TA Review Exam 1 · TA review · slides 64-65
261asked 3×Technique physiology

Cross arm technique uses which physiological mechanism?

Ans: Cross-arm = bilateral stretch with steady, slowly increased force → GTO reflex

Why: The cross-arm (bilateral linear) stretch applies a steady force increased slowly, which builds tension and uses the Golgi tendon reflex to relax the muscle (lengthening reaction).

Explanation & sources

Explanation

The lecture pairs kneading with spindle principles and bilateral stretching with the GTO. The other reflexes are unrelated to soft tissue technique.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 125-126
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 64-65
  • 2020 TA Review Exam 1 · TA review · slides 67-68
262Technique physiology

What is the physiological principle at play for the bilateral linear cervical stretch?

Ans: Slow linear stretch → avoids rate-sensitive spindle firing → no reflex contraction

Why: The stretch is done slowly so the spindle, which senses rate of change of length, does not trigger a stretch reflex. That is preventing muscle spindle activation.

Explanation & sources

Explanation

No antagonist or opposite-side contraction is used, so reciprocal inhibition and crossed extensor do not apply. The lecture also links this steady bilateral stretch with the GTO, but the GTO is not an option here.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 99-100
263top 215Technique physiology

You are performing counterstrain to treat a patient's anterior T8 tenderpoint. How is the muscle spindle involved in this technique?

Ans: Counterstrain = passive shortening → spindle firing drops → relaxation

Why: Counterstrain places the hypertonic muscle in a shortened position. This reduces spindle afferent input, resets the overactive spindle, and lets the muscle relax.

Explanation & sources

Explanation

A slow stretch gives a static response but does not 'inhibit' afferents. B describes reciprocal inhibition. A quick stretch causes the dynamic response and a strong contraction.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 69-70
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 17

4.9 · 8 questions · Questions 264–271

Hypertonia & goals of treatment

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Causes of muscle hypertonia: pain, postural strain, spinal facilitation, supraspinal influence and psychological stress (so “all of the above”). Hypertonia limits movement across a joint and decreases function.

The four goals of myofascial (soft tissue) treatment, learned word for word:

GoalEffect
1. Relaxation of contracted (hypertonic) muscles↓ pain, normalized range of motion across a joint, ↓ oxygen demand of the muscle
2. Increase circulation to an area of ischemiaSupplies blood carrying oxygen and nutrients to the tissues
3. Increase venous and lymphatic drainage↓ local swelling, removes metabolic waste
4. Stimulatory effect on the stretch reflex in hypotonic musclesTones up weak, hypotonic muscles

Twisted (false) versions to reject: increase hypertonicity, decrease drainage, decrease circulation, inhibit the stretch reflex, shorten tight muscles, increase ischemia, decrease tissue elasticity, “increase contraction of hypotonic muscles” (the goal is to stimulate the stretch reflex).

264Hypertonia & goals of treatment

Which of the following is a cause of muscle hypertonia?

Ans: Lecture list: pain, postural strain, spinal facilitation, supraspinal influence, stress → all

Why: The lecture lists causes of hypertonia as pain, postural strain, spinal facilitation, supraspinal influence and psychological stress, so all of the above.

Explanation & sources

Explanation

The lecture slide says 'psychological stress'; the stress option here means the same thing. Hypertonia limits movement across a joint and decreases function.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 112-113
265Hypertonia & goals of treatment

What are the 4 goals of myofascial treatments?

Answer1) Relax contracted muscles. 2) Increase circulation to an area of ischemia. 3) Increase venous and lymphatic drainage. 4) Stimulate the stretch reflex in hypotonic muscles.

Ans: Relax, circulate, drain, stimulate

Why: Four goals: relax contracted muscles, increase circulation to ischemic areas, increase venous and lymphatic drainage, and a stimulatory effect on the stretch reflex in hypotonic muscles.

Explanation & sources

Explanation

Relaxation decreases pain, normalizes range of motion and lowers the muscle's oxygen demand. Drainage decreases swelling and removes metabolic waste.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 127-128
266Hypertonia & goals of treatment

Which of the following is one of the four goals of OMT?

Ans: A-D are exactly the 4 lecture goals → all

Why: A through D are the four goals of myofascial treatment listed word for word in the lecture.

Explanation & sources

Explanation

Watch for twisted versions on the exam, such as 'decrease drainage' or 'increase hypertonicity', which are false.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 168-169
267Hypertonia & goals of treatment

What is the effect of the relaxation of contracted muscles?

Ans: Relaxation goal → less pain, normal ROM, less O2 demand (D belongs to circulation goal)

Why: The lecture lists three effects of relaxing contracted muscles: decreases pain, normalizes range of motion, and decreases oxygen demand.

Explanation & sources

Explanation

Supplying oxygen and nutrients falls under a different goal, increasing circulation to an area of ischemia, so 'all of the above' is wrong.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 125-126
268asked 2×Hypertonia & goals of treatment

Which of the following is not a goal of myofascial treatments?

Ans: Goals relax muscles → decrease, not increase, hypertonicity

Why: Myofascial treatment aims to decrease hypertonicity by relaxing contracted muscles. Increasing it is not a goal.

Explanation & sources

Explanation

A, B and C come from the lecture's goals list. The only 'stimulatory' goal targets the stretch reflex in hypotonic muscles, not hypertonic ones.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 62-63
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 63-64
269Hypertonia & goals of treatment

Which is not a goal of OMT?

Ans: Goal is INCREASED drainage → 'decreasing' is false

Why: The goal is to increase venous and lymphatic drainage, which reduces swelling and clears metabolic waste. Decreasing it is not a goal.

Explanation & sources

Explanation

B, C and D are three of the four goals stated in the lecture.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 78-79
270Hypertonia & goals of treatment

Which is a goal of myofascial treatment?

Ans: Goal list → increase venous + lymphatic drainage

Why: Increased venous and lymphatic drainage is one of the four goals. It decreases local swelling and removes metabolic waste.

Explanation & sources

Explanation

Circulation is increased, not decreased. The goal is to stimulate, not inhibit, the stretch reflex in hypotonic muscles. D distorts that goal into directly increasing contraction.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 97-98
271top 215Hypertonia & goals of treatment

Which of the following is a goal of passive myofascial techniques?

Ans: Myofascial goals → relax contracted (hypertonic) muscles

Why: A goal of myofascial technique is to relax hypertonic (contracted) muscles.

Explanation & sources

Explanation

OMT reduces ischemia rather than increasing it. Stretching lengthens tight muscles and improves tissue extensibility, the opposite of B and D.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 4, slides 7-8

4.10 · 7 questions · Questions 272–278

Soft tissue techniques

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Soft tissue (myofascial) technique treats muscle and fascia. It can be the primary treatment or preparation for other techniques such as HVLA. Unlike muscle energy, it does not require a specific joint diagnosis.

  • Passive: the physician does the work. Active: the patient makes an isometric contraction of the tight muscle against resistance, then the muscle is stretched.
  • Perpendicular stretch: pushes the muscle at right angles to its fibers (medial to lateral), e.g. prone thoracic paraspinals or unilateral cervical perpendicular stretch for hypertonic scalenes.
  • Parallel (linear, longitudinal) stretch: hands spread apart along the long axis of the muscle.
  • Bidirectional: e.g. thoracolumbar stretch in lateral recumbent.
  • Performed slowly and rhythmically (rapid springing would trigger the stretch reflex) and repeated until the tissue relaxes.
  • After any OMT, reassess the somatic dysfunction.

Indications: hypertonic muscles, low back pain, muscle strain (gentle work). Contraindications: patient refusal or an uncooperative patient (applies to all OMT); an acute muscle tear (don't stretch the injured tissue); infection such as abscess or fever. The 90-second hold belongs to counterstrain, not soft tissue.

272Soft tissue techniques

Which of the following statements is false regarding active myofascial techniques?

Ans: Soft tissue targets muscle/fascia, not a specific joint → joint diagnosis not required

Why: Active myofascial technique treats muscle and fascia. It does not require a specific joint diagnosis. Muscle energy is the technique that treats a specific mechanical (joint) diagnosis.

Explanation & sources

Explanation

A, C and D are true. The patient actively makes an isometric contraction of the tight muscle against resistance, then the muscle is stretched.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 4, slides 3-4
273Soft tissue techniques

Which of the following is a contraindication to performing myofascial techniques on a patient?

Ans: Psychosocial contraindication → patient refusal

Why: Patient refusal (or an uncooperative patient) is a contraindication to any OMT, listed under the psychosocial model.

Explanation & sources

Explanation

Low back pain and hypertonic muscles are reasons to treat. A muscle strain is not a contraindication to gentle myofascial work, though an acute severe strain is a relative contraindication for more forceful technique.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 4, slides 9-10
Lecture slide (1)
Week 6 · Written Review deck · slide 39
274Soft tissue techniques

You perform an active myofascial technique on your patient for back pain. What is the most appropriate next step?

Ans: After any OMT → reassess

Why: After any OMT you reassess the somatic dysfunction to see whether the treatment worked. Reassessment is a required part of every technique.

Explanation & sources

Explanation

X-rays and medications are not routine after simple back-pain OMT. Home exercises may follow, but only after you reassess.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 4, slides 11-12
275Soft tissue techniques

The image below shows the unilateral perpendicular stretch for the cervical spine. Which clinical entity best responds to this type of technique?

Ans: Perpendicular stretch relaxes hypertonic muscle → hypertonic scalenes

Why: Soft tissue stretching is aimed at hypertonic muscles. Here, cervical muscles such as the scalenes.

Explanation & sources

Explanation

An acute muscle tear is a contraindication to stretching the injured tissue. Abscess and fever point to infection, a contraindication rather than an indication.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 4, slides 13-14
276Soft tissue techniques

When performing the thoracic myofascial technique shown in the image, which statement best describes the technique?

Ans: Perpendicular stretch of thoracic paraspinals → paraspinals are stretched

Why: The figure shows a prone perpendicular stretch of the thoracic paraspinals. The paraspinal muscles are being stretched at right angles to their long axis.

Explanation & sources

Explanation

The technique is slow and rhythmic, not rapid springing, which would trigger the stretch reflex. It is repeated until the tissue relaxes. Its goal is muscle relaxation, not autonomic excitation.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 5, slides 18-19
277Soft tissue techniques

You would like to perform the parallel myofascial treatment. Which of the following statements is true?

Ans: Soft tissue = primary tx OR preparation for other methods (e.g., HVLA)

Why: Soft tissue technique can be the primary treatment or preparation for other methods such as HVLA.

Explanation & sources

Explanation

A describes a perpendicular stretch, not parallel. B adds an active contraction, which a passive parallel stretch does not use. The 90-second hold belongs to counterstrain.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 33-34
278Soft tissue techniques

In the image below, which direction is the myofascial stretch being performed?

Ans: Force along the long axis of the paraspinals → parallel (linear) stretch

Why: The hands spread apart along the long axis of the paraspinals, so this is a parallel (linear/longitudinal) stretch.

Explanation & sources

Explanation

Perpendicular stretch pushes the muscle at right angles to its fibers (medial to lateral). Bidirectional is a different setup (the thoracolumbar stretch in lateral recumbent). HVLA uses a quick thrust, not a sustained stretch.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 62-63

4.11 · 6 questions · Questions 279–284

Myofascial release

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Myofascial release (MFR): the tissue is loaded with a constant force until it releases, guided by palpatory feedback. Holding cephalad traction on the suboccipital tissues until they relax is MFR.

Direct MFRIndirect MFR
DirectionInto the restrictive barrier (direction of limited motion), gentle constant load, wait for release, take up new slackAway from the restrictive barrier, toward ease; the textbook says this is toward the anatomic barrier (the course key)

Indications: goals include relieving edema and improving lymph flow, so peripheral edema is an indication. Relative contraindications: fracture, trauma, malignancy and infection (lymphatic contraindications also apply).

Fragile patients: for a debilitated ICU patient with heart failure and vertebral metastases, the gentlest choice offered is direct MFR (not over the metastasis itself). Muscle energy needs patient effort; HVLA is contraindicated with bone metastases; lymphatic techniques (pumps, thoraco-abdominal diaphragm release) are relatively contraindicated in advanced cancer and unlikely to help musculoskeletal pain. (The 2026 review deck also lists unstable/infirm patients and metastases in the treatment area as contraindications for direct MFR, which is why it is used gently and not over the metastasis.)

Look-alikes: articulatory = moving a joint repeatedly through its range; counterstrain and FPR = positions of ease (indirect); BLT/LAS = balancing ligamentous tension; Galbreath = mandibular drainage for the ear.

Zink fascial patterns (rotational preference at the 4 junctions: OA / cervicothoracic / thoracolumbar / lumbosacral):

PatternOA / CT / TL / LSFrequency
Common compensatoryL / R / L / RAbout 80% of healthy people
Uncommon compensatoryR / L / R / LAbout 20%
UncompensatedDoes not alternateUnhealthy, stressed or recently traumatized
279asked 4×2026Myofascial release

When performing indirect myofascial release, which barrier is engaged?

Ans: Indirect = move away from restrictive barrier → toward the anatomic barrier side

Why: Indirect MFR moves tissue away from the restrictive barrier, toward ease. The textbook says this direction moves toward the anatomic barrier (the limit of passive motion), which is more comfortable for the patient.

Heads up: All keys mark anatomic (the 2026 course MFR text, and 'C. Anatomic' on the 2023 TA slide, which used a different letter order). A note on the TA copy questioned this, but the course textbook explanation supports anatomic, so A stands.

Explanation & sources

Explanation

The restrictive (pathologic) barrier is what direct MFR engages. The physiologic barrier is the limit of active, patient-made motion. The elastic barrier is the range between physiologic and anatomic where passive ligament stretch occurs.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.5 Q2 (answer key p.7)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 33 (answer slide 34); textbook TB_MFR.pdf p.5 Q2
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q2
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 116-117
Lecture slide (1)
Week 3 · Written Review deck · slide 21
280asked 3×2026Myofascial release

Which of the following is an indication for treatment utilizing myofascial release?

Ans: MFR goals include relieving edema + improving lymph flow → peripheral edema

Why: Goals of MFR include relieving edema and improving lymph flow, so peripheral edema is an indication.

Explanation & sources

Explanation

Fracture, trauma, malignancy and infection are relative contraindications to MFR. Because MFR improves lymph flow, lymphatic contraindications such as advanced cancer and serious infection apply too.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.5 Q3 (answer key p.7)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 35 (answer slide 36); textbook TB_MFR.pdf p.5 Q3
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q3
281asked 3×2026Myofascial release

A young adult with chronic headaches undergoes osteopathic manipulative treatment. With the patient supine the physician holds cephalad traction to the suboccipital tissues until the regional musculature relaxes. This technique is a type of

Ans: Constant load held until tissue releases → myofascial release

Why: Loading the tissue with a constant force until it releases, guided by palpatory feedback, defines myofascial release.

Explanation & sources

Explanation

BLT and LAS balance ligamentous tension at a joint. FPR uses a shortened position plus a facilitating force such as compression. The Galbreath maneuver is a mandibular drainage technique for the ear.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.5 Q4 (answer key p.7)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 37 (answer slide 38); textbook TB_MFR.pdf p.5 Q4
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q4
282asked 3×2026Myofascial release

You are consulted to see a severely debilitated 87-year-old male with complaints of mid thoracic pain. He was in the intensive care unit for 3 weeks and was transferred to a medical/surgical bed yesterday. He has a history of coronary artery disease, congestive heart failure and prostate cancer with vertebral metastasis. His back pain is localized to the mid thoracic region and seems to be musculoskeletal in nature. Which osteopathic manipulative techniques would be best suited to relieve this patient's symptoms?

Ans: Fragile patient + bone mets → gentle soft tissue → direct MFR

Why: Fragile, hospitalized patients do best with gentle techniques. Direct myofascial release can treat musculoskeletal pain without stressing him.

Heads up: Textbook key E. Note: the 2026 review deck (slide 39) lists unstable/infirm patients and metastases in the area of treatment as contraindications for ME, HVLA and dMFR. Choose E here as the gentlest of these options, but do not use dMFR directly over a metastasis.

Explanation & sources

Explanation

Muscle energy needs patient effort and is contraindicated in ICU or low-vitality patients. HVLA is contraindicated with bone metastases (risk of pathologic fracture). Diaphragm release and pedal pump are lymphatic techniques, relatively contraindicated in advanced cancer and unlikely to help musculoskeletal pain.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.6 Q6 (answer key p.7)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 41 (answer slide 42); textbook TB_MFR.pdf p.6 Q6
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q6
Lecture slide (1)
Week 6 · Written Review deck · slide 39
283top 215asked 3×2026Myofascial release

A patient complains of neck pain that is worse at the end of the work day. Structural examination reveals somatic dysfunction in the upper cervical segments. The physician slowly turns the patient's neck in the direction of limited movement, loads the soft tissues with a gentle constant force, then waits a few seconds until the tissues release and more motion is possible. This technique is an example of

Ans: Toward restriction (barrier) + constant load until release → direct MFR

Why: Moving into the restrictive barrier and loading the tissue with a constant force until release is direct myofascial release.

Explanation & sources

Explanation

Indirect MFR moves away from the barrier. Articulatory technique moves a joint repeatedly through its range. Counterstrain and FPR both use positions of ease (shortening), which are indirect.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.6 Q7 (answer key p.8)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 43 (answer slide 44); textbook TB_MFR.pdf p.6 Q7
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q7
284top 215asked 3×2026Myofascial release

A young male presents for a routine physical. Structural examination reveals he has the most common fascial pattern noted in the population. The most likely compensatory pattern is

Ans: Zink common compensatory pattern (80%) → OA L, CT R, TL L, LS R

Why: Zink's common compensatory pattern (about 80% of healthy people) alternates at the four junctions: OA left, cervicothoracic right, thoracolumbar left, lumbosacral right (L/R/L/R).

Explanation & sources

Explanation

R/L/R/L is the uncommon compensatory pattern (about 20%). Patterns that do not alternate (A, B, E) are uncompensated, seen in unhealthy, stressed or recently traumatized patients.

Asked in

  • 2026 Textbook - Myofascial Release (Ch. 12 Review Questions) · Textbook chapter questions · TB_MFR.pdf p.5 Q1 (answer key p.7)
  • 2026 Textbook Q&A Compilation - Myofascial Release · Textbook chapter questions · slide 31 (answer slide 32); textbook TB_MFR.pdf p.5 Q1
  • Myofascial Release (OMM review book ch. 12 review questions, ©2020) · Textbook chapter questions · Ch 12 Q1

Week 5 · 113 questions

Thoracic Spine, Fryette & Scoliosis

Questions 285–397

10 sections in this week
  1. 5.1Thoracic anatomy & motion
  2. 5.2Rule of 3s & landmarks
  3. 5.3Type I group curves
  4. 5.4Type II diagnosis
  5. 5.5Facets open/closed
  6. 5.6Viscerosomatic levels
  7. 5.7Scoliosis types & naming
  8. 5.8Scoliosis screening & reversibility
  9. 5.9Cobb angle & treatment
  10. 5.10Short leg

5.1 · 9 questions · Questions 285–293

Thoracic anatomy & motion

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Rotation is the main (greatest) motion of the thoracic spine; it is limited mainly by ligament tension. The other motions are limited by specific structures:

MotionLimited mainly by
ExtensionLong, overlapping (“shingled”) spinous processes; also the ALL
FlexionPosterior longitudinal ligament, interspinous ligaments, ligamentum flavum
Sidebending (lateral flexion) and unilateral joint motionThe ribs (costovertebral/costotransverse joints); the rib cage makes the thoracic spine stiffer than the cervical or lumbar spine

Functional regions: C7–T1 cervicothoracic junction; T1–T3 transitional; T4–T9 = the true thoracic kyphosis (apex at T5–T6; vertebral bodies a bit taller posteriorly); T12–L1 thoracolumbar junction.

Superior facet orientation (mnemonic BUM–BUL–BUM, top to bottom):

RegionSuperior facets face
CervicalBack, Up, Medial
ThoracicBack, Up, Lateral
LumbarBack, Up, Medial (backward and medial)

Inferior facets face the opposite way (forward, down, medial in the thoracics) to mate with the superior facets below.

Dermatomes: T10 = umbilicus; T11 just below; T12 just above the inguinal ligament (suprapubic); L1 anterior thigh just below the inguinal ligament; L2 middle/anterior thigh. The epigastrium is above T10.

285asked 2×Thoracic anatomy & motion

The main motion of the thoracic vertebrae is:

Ans: Ribs limit sidebending, SPs limit extension → rotation is the largest thoracic motion

Why: Rotation is the greatest motion allowed in the thoracic spine. It is limited mainly by ligament tension.

Explanation & sources

Explanation

Flexion and extension are limited: extension by the shingled spinous processes (and the ALL), flexion by the interspinous ligaments, ligamentum flavum and PLL. Sidebending is limited by the ribs. "Sidebending and rotation" describes coupled motion, not the main single motion.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 94-95
  • 2022 TA Review - Exam 1 · TA review · slides 55-56
286asked 3×Thoracic anatomy & motion

What is the true thoracic kyphosis of the T-spine?

Ans: Thoracic functional divisions → T4-T9 = true kyphosis (apex T5-T6)

Why: The lecture divides the thoracic spine into functional regions. T4-T9 is the true thoracic kyphosis, with its apex at T5-T6.

Explanation & sources

Explanation

C7-T1 is the cervicothoracic junction. T1-T3 is a transitional (lordotic) region, and T12-L1 is the lordotic thoracolumbar junction. T5-T6 is only the apex, not the whole kyphotic region. The kyphosis comes mainly from vertebral bodies that are a bit taller posteriorly than anteriorly.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 81-82
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 92-93
  • 2020 TA Review Exam 1 · TA review · slides 80-81
287top 215asked 7×2026Thoracic anatomy & motion

Extension of the thoracic spine is most affected by which of the following?

Ans: Long overlapping thoracic SPs → shingle effect → blocks extension

Why: Thoracic spinous processes are long and overlap like shingles, so they block extension. The ALL also limits extension, but less.

Explanation & sources

Explanation

The PLL (with the interspinous ligaments and ligamentum flavum) limits flexion, the opposite motion. The ribs limit sidebending. The transverse processes are not the main block to extension. The Canvas version of this question words it "most limit extension" with the same answer.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q5 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 70-71
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 85-86
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 32-34
  • 2024 IA 5 - Thoracic - Fryette's · In-class poll · slides 24-25
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 75-76
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 75-76
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 86
288top 215asked 2×Thoracic anatomy & motion

Which of the following restricts the motion of flexion in the thoracic spine?

Ans: Flexion stretches posterior ligaments → PLL (with interspinous ligaments, ligamentum flavum)

Why: Thoracic flexion is limited by tension in the posterior longitudinal ligament, the interspinous ligaments and the ligamentum flavum.

Explanation & sources

Explanation

Spinous processes and the ALL limit extension. The ribs limit sidebending. Keep the pair straight: flexion is stopped by the PLL group, extension by the shingled SPs.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 63-64
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 154-155
289asked 3×Thoracic anatomy & motion

Lateral flexion and unilateral joint motion is restricted by which of the following?

Ans: Rib attachments at costovertebral/costotransverse joints → restrict lateral flexion

Why: The ribs articulate with the thoracic vertebrae and restrict lateral flexion (sidebending) and unilateral joint motion.

Explanation & sources

Explanation

Spinous processes and the ALL limit extension. The PLL limits flexion. Transverse processes are attachment points, not the main restrictor. The rib cage is the main reason the thoracic spine is stiffer than the cervical or lumbar spine.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 74-75
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 104-105
  • 2020 TA Review Exam 1 · TA review · slides 92-93
290top 215asked 8×2026Thoracic anatomy & motion

The superior articular facets of the thoracic vertebrae face which directions?

Ans: Thoracic superior facets → BUL → posteriorly, superiorly, laterally

Why: Thoracic superior facets face back, up and lateral (BUL). Cervical and lumbar superior facets face back, up and medial (BUM).

Explanation & sources

Explanation

The options with anteriorly, inferiorly and medially describe the inferior facets, which face the opposite way to mate with the superior facets below. Mnemonic: BUM-BUL-BUM for cervical, thoracic, lumbar.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.14 Q9 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 17 (answer slide 18); textbook TB_Basics.pdf p.14 Q9
  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 86-87
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 77-78
  • 2022 Instructor Exam Review (Dr. Banihashem) - Exam 1 · Instructor review · p.2, 'Facet directions'
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 78-79
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 107-108
  • 2020 TA Review Exam 1 · TA review · slides 96-97
Lecture slide (1)
Week 5 · Written Review deck · slide 27
291Thoracic anatomy & motion

Fill in the blank: The superior articular facets of the thoracic vertebrae face back, up and ____. The superior articular facets of the cervical vertebrae face back, up and ____.

AnswerThoracic: lateral (back, up, lateral = BUL). Cervical: medial (back, up, medial = BUM).

Ans: BUM-BUL-BUM → cervical medial, thoracic lateral, lumbar medial

Why: Superior facets face back and up at every level. Only the third direction changes: thoracic = lateral (BUL), cervical = medial (BUM).

Explanation & sources

Explanation

Lumbar superior facets are also back, up and medial (BUM), so the full mnemonic is BUM-BUL-BUM from top to bottom. A common trap is giving the thoracic answer (lateral) for a lumbar or cervical question.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 74-75
Lecture slide (1)
Week 5 · Written Review deck · slide 27
292Thoracic anatomy & motion

In the lumbar spinal segments, what position will you normally find the facet joints facing?

Ans: Lumbar → BUM (back, up, medial) → backwards and medial

Why: Lumbar superior facets face backward and medial (BUM). Back, up and lateral is the thoracic pattern.

Heads up: The 2023 TA answer slide highlights C (back, up, lateral), which is the thoracic orientation. The same slide's mnemonic and the 2026 lecture (BUM-BUL-BUM: lumbar = back, up, medial) make D correct.

Explanation & sources

Explanation

C (back, up, lateral) is the thoracic orientation, the classic trap. A and B combine directions that do not go together. Mnemonic BUM-BUL-BUM: cervical, thoracic, lumbar.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 107-108
293asked 2×2026Thoracic anatomy & motion

A 20-year-old female presents for a general maintenance examination without complaints. Structural examination reveals T10 is flexed, rotated and sidebent right. The associated dermatome at the level of T10 is at the

Ans: T10 dermatome → umbilicus

Why: The T10 dermatome is at the level of the umbilicus.

Explanation & sources

Explanation

T11 is just below the umbilicus and T12 is just above the inguinal ligament (suprapubic). L1 covers the anterior thigh just below the inguinal ligament and L2 the middle and anterior thigh. The epigastrium sits above T10.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.11 Q11 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 95 (answer slide 96); textbook TB_Thorax_RibCage.pdf p.11 Q11

5.2 · 13 questions · Questions 294–306

Rule of 3s & landmarks

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The rule of 3s tells you where each thoracic spinous process (SP) sits relative to its own transverse processes (TPs). TPs always sit at their own vertebra's level; the SPs angle downward.

GroupTip of the SP liesSo the SP of Tn is beside the TPs of
T1–T3At the same level as its own TPsTn (same vertebra)
T4–T6½ segment below: halfway between its own TPs and the TPs belowBetween Tn and Tn+1
T7–T91 full segment below: level with the TPs of the vertebra belowTn+1
T10Like T7–T9 (1 full below)T11
T11Like T4–T6 (½ below)Between T11 and T12
T12Like T1–T3 (same level)T12

Working backward (from a TP to the SP beside it): T5 TPs lie halfway between the T4 and T5 SPs; T8 TPs are at the T8 level, beside the T7 SP; T10 TPs are at the level of the T9 SP. No thoracic SP ever sits above its own TPs.

Two-trap question: thumbs beside the T8 SP are on the T9 TPs. An anterior (deep) TP on the right means the left TP is posterior → T9 rotated left. Always ask: was I given the SP or the TP, and which side is posterior?

Landmarks: spine of scapula = T3; inferior angle of scapula = T7; follow rib 12 to T12; iliac crests = L4–L5. Anterior: suprasternal notch T2, angle of Louis T4, xiphoid T9.

Written Review slide 36: rule of 3s
294asked 3×Rule of 3s & landmarks

According to the rule of threes, which group of vertebrae have spinous processes that project one half segment below?

Ans: Rule of 3s: T1-3 same, T4-6 half below, T7-9 one below → T4-T6

Why: Rule of 3s: T1-T3 SPs are level with their own TPs, T4-T6 SPs sit one half segment below, and T7-T9 SPs sit one full segment below.

Explanation & sources

Explanation

T1-T3: same level. T7-T9: one full level below. T10-T12 reverse the pattern (T10 full, T11 half, T12 same), so the group as a whole is not "half below," although T11 alone is.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 70-71
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 100-101
  • 2020 TA Review Exam 1 · TA review · slides 88-89
Lecture slide (1)
Week 5 · Written Review deck · slide 36
295Rule of 3s & landmarks

According to the "Rule of 3's" of the thoracic spine, the spinous processes of T1-T3 would be located on what plane level in relation to its own transverse process?

Ans: T1-T3 → SP level with its own TP → same level

Why: For T1-T3 the spinous process is at the same level as its own transverse processes.

Explanation & sources

Explanation

Halfway below describes T4-T6 (and T11). A full level below describes T7-T9 (and T10). No thoracic SP sits above its own TPs.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 58-59
Lecture slide (1)
Week 5 · Written Review deck · slide 36
296top 215Rule of 3s & landmarks

Which of the following statements is true regarding the Rule of Three's for thoracic spinal diagnosis?

Ans: T4-6 SP half below → between own TP and TP below

Why: For T4-T6 the SP lies halfway between its own TPs and the TPs of the vertebra below.

Explanation & sources

Explanation

A: T1-T3 SPs are level with their own TPs. C: T7-T9 SPs lie at the TPs of the vertebra below, not above. D: T10-T12 run the pattern in reverse (T10 full, T11 half, T12 same), not the T1-T3 rule in reverse.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 37-38
Lecture slide (1)
Week 5 · Written Review deck · slide 36
297top 2152026Rule of 3s & landmarks

Based on the Rule of 3's for the thoracic spinous processes, which of the following statements is correct?

Ans: T2 in T1-T3 group → SP level with own TPs

Why: T2 is in the T1-T3 group, where the SP and TPs are at the same level.

Explanation & sources

Explanation

B: the T7 SP is one full level below, at the T8 TPs, not up at T6. C: the T5 SP is half a level below, between T5 and T6, not T4 and T5. D: the T11 TPs are above the T11 SP (half a level), while the T12 SP is level with the T12 TPs, so the T11 TPs are not in line with the T12 SP.

Asked in

  • 2026 Practice Questions for OMM 1 - Lect 5 Thoracic Spine/Fryette's Principles (Canvas) · Practice questions · Q1
Lecture slide (1)
Week 5 · Written Review deck · slide 36
298Rule of 3s & landmarks

During a thoracic spine OMM lab, a medical student palpates the spinous process of T5 on her OMM partner. Which group of thoracic vertebrae has the same anatomical relationship between their spinous and transverse processes as T5?

Ans: T5 in T4-T6 → SP half segment below → between own TP and TP below

Why: T5 belongs to the T4-T6 group: each SP sits halfway between its own TPs and the TPs of the vertebra below.

Explanation & sources

Explanation

A describes T1-T3 (and T12). C describes T7-T9 (and T10). D is false; the rule of 3s exists precisely because the pattern is predictable.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 81-82
Lecture slide (1)
Week 5 · Written Review deck · slide 36
299asked 2×Rule of 3s & landmarks

Using the "rule of threes," the transverse process of T5 can be located:

Ans: T5 SP sits half below its TPs → T5 TPs between T4 and T5 SPs

Why: T4-T6 SPs project half a segment below their own TPs. So the T5 TPs sit halfway between the T4 and T5 spinous processes.

Explanation & sources

Explanation

C (halfway between the T5 and T6 SPs) is where the T6 TPs are. B would be true only for T1-T3. D and E point to spinous processes well below T5.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 92-93
  • 2022 TA Review - Exam 1 · TA review · slides 57-58
Lecture slide (1)
Week 5 · Written Review deck · slide 36
300Rule of 3s & landmarks

You are completing the palpation part of your thoracic rubric during your mock practical. Placing your fingers on your partner's back, you locate T7, which is associated with the inferior angle of the scapula. According to the rule of threes, where is the spinous process of the T7 vertebra located?

Ans: T7 in T7-T9 → SP one full segment below → at T8 level

Why: T7-T9 spinous processes project one full segment below, so the T7 SP lies at the level of the T8 TPs.

Explanation & sources

Explanation

A is wrong twice: the T7 SP is not at its own level, and the spine of the scapula is T3, not T7. C is wrong because thoracic SPs never project above their own level. Landmarks: spine of scapula = T3, inferior angle = T7.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 104-105
Lecture slide (1)
Week 5 · Written Review deck · slide 36
301top 215Rule of 3s & landmarks

If you are at the spinous process of T8, what level TPs are just lateral to it?

Ans: SP of T8 (T7-T9 group) projects one level down → T9 TPs beside it

Why: The T8 SP projects one full segment down, so the TPs just lateral to it belong to T9.

Explanation & sources

Explanation

C (T8) is the trap: it assumes SP and TP are level, which is true only for T1-T3 and T12. T7 and T6 go the wrong direction. Read carefully whether a question gives the level of the SP or the TP.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 70-71
Lecture slide (1)
Week 5 · Written Review deck · slide 36
302Rule of 3s & landmarks

During a structural exam, a medical student palpates the transverse processes of T8. These transverse processes are located:

Ans: T8 SP projects down to T9 → T8 TPs stay at T8 level (T7 SP level)

Why: TPs belong to their own vertebra, so the T8 TPs are at the level of T8. Because T7-T9 SPs project one level down, the SP found beside them is the T7 SP.

Heads up: The 2025 TA key marks C ("At the level of T9"). By the rule of 3s, the T8 SP lies at the T9 TPs, but the T8 TPs themselves lie at the T8 level, beside the T7 SP. The key appears to confuse SP with TP, so A is given here.

Explanation & sources

Explanation

C reverses the rule: it is the T8 spinous process that sits at the T9 level. B and D use the half-segment (T4-T6) pattern, which does not apply to T8.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 83-84
Lecture slide (1)
Week 5 · Written Review deck · slide 36
303Rule of 3s & landmarks

The spinous process of T10 can be found over which spinal vertebra?

Ans: T10 follows T7-T9 → SP one full level down → over T11

Why: T10 follows the T7-T9 rule: its SP lies one full segment below, over T11.

Explanation & sources

Explanation

B assumes SP and body are level (true for T1-T3 and T12). C and D go upward, which never happens. E skips two levels.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 74-75
Lecture slide (1)
Week 5 · Written Review deck · slide 36
304asked 2×2026Rule of 3s & landmarks

A 20-year-old female presents for a general maintenance examination without complaints. Structural examination reveals T10 is flexed, rotated and sidebent right. The transverse process of this segment can be found

Ans: T10 SP = one level down (T7-9 rule) → T9 SP lies at T10 TPs

Why: Work the rule in reverse: which SP sits at T10? T9 is in the T7-T9 group, so the T9 SP lies at the T10 TPs.

Explanation & sources

Explanation

B: the T10 SP is one level lower, at the T11 TPs. C: the T11 SP is about half a level below T11. D and E use the half-segment rule, which does not apply to T9-T10. The FRS detail in the stem is a distractor.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.11 Q10 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 93 (answer slide 94); textbook TB_Thorax_RibCage.pdf p.11 Q10
Lecture slide (1)
Week 5 · Written Review deck · slide 36
305Rule of 3s & landmarks

You palpate the spinous process of T8 and put a thumb on either side of it, finding an anterior TP on the right. Which is correct?

Ans: TPs beside T8 SP belong to T9 → anterior right = posterior left → T9 rotated left

Why: The TPs beside the T8 SP belong to T9 (T7-T9 SPs project one level down). An anterior TP on the right means the left TP is posterior, so T9 is rotated left.

Explanation & sources

Explanation

C and D name the wrong level (the SP is T8, the TPs are T9). F gets the level right but reads the anterior TP as posterior. A and B go up a level instead of down. Two traps in one: SP vs TP level, and anterior vs posterior.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 77-78
Lecture slide (1)
Week 5 · Written Review deck · slide 36
306top 215Rule of 3s & landmarks

Which landmarks are helpful in determining thoracic levels during a physical exam?

Ans: Spine of scapula = T3; inferior angle = T7

Why: Surface landmarks: spine of the scapula = T3, inferior angle of the scapula = T7, 12th rib followed to T12, iliac crests = L4-L5 interspace.

Explanation & sources

Explanation

A: the inferior angle is T7, not T9. D: the 12th rib leads to T12, not T9. B is not a landmark. Anterior landmarks from lecture: suprasternal notch = T2, angle of Louis = T4, xiphoid = T9.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 43-44
Lecture slide (1)
Study note

5.3 · 16 questions · Questions 307–322

Type I group curves

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Learn firstWhat you need for 5.3

Several adjacent segments rotated the same way (or a visible curve / rib hump over many levels) = a Type I group curve: neutral, does not change with flexion or extension, sidebending and rotation to opposite sides.

  • Rotation = side of the posterior TPs = side of the rib hump / paraspinal prominence = the convexity.
  • Sidebending = the opposite side = toward the concavity. (Translating the vertebrae to the right = sidebending them left.)
  • Rotation is greatest at the apex, not the base. The posterior component is on the convex side.
  • The region moves freely into its dysfunction: a curve convex left (Sr Rl) freely rotates left.
  • Type I curves are usually chronic (dull, achy; cool, doughy tissue).
FindingDiagnosis
Posterior TPs right T3–T5T3–T5 N Sl Rr
Rib hump left T1–T10T1–T10 N Sr Rl
Whole lumbar spine convex leftSidebent right, rotated left
Posterior TPs right from spine of scapula down 4 segmentsT3–T6 N Sl Rr
Hump right from spine of scapula to inferior angleT3–T7 N Sl Rr
Hump right from SP of T8 to SP of T12Convert with the rule of 3s: T8 SP sits at T9; T12 SP at T12 → T9–T12 N Sl Rr

Use landmarks to get the levels (spine of scapula T3, inferior angle T7) and the rule of 3s when the stem gives spinous processes. Write Type I with sidebending first (N Sx Ry). When both orders are offered, pick the sidebending-first form; accept the textbook rotation-first form (“NRLSR”) only when it is the only correct pattern offered. If your left thumb goes deeper, the left TP is anterior, so the right is posterior (rotated right).

Where's the Type II? At the first, apex, and last segments of the group curve. The apex of T1–T10 is about T5. Treat the Type II first.

307top 215asked 10×2026Type I group curves

You find 3 posterior transverse processes on the right side at T3-5. Which of the following is a true statement?

Ans: 3 adjacent segments posterior right → group curve = Type I → rotated right, sidebent left

Why: Several adjacent segments rotated the same way is a group curve, which follows Type I (neutral) mechanics: rotation toward the posterior TPs (right) and sidebending the opposite way (left).

Explanation & sources

Explanation

A says Type I but flips the directions; posterior TPs on the right mean rotation right. B couples rotation and sidebending to the same side, which is Type II. D is false because Type I curves do not change with flexion or extension; a change would point to Type II. Older versions used "the facets are controlling vertebral mechanics," which also describes Type II.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 69, 72
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 87-88
  • 2026 Textbook Q&A Compilation - Fryette's Practice Questions · Practice questions · slide 153 (answer slide 154)
  • Fryette's Practice Questions with answers · Practice questions · Q1
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 39-41
  • 2025 Fryette's Practice Questions with answers · Practice questions · Q1
  • 2024 IA 8 - Scoliosis · In-class poll · slides 3-4
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 90-91
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 89-90
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 187-188
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Week 3 · Written Review deck · slide 17
308top 215asked 3×2026Type I group curves

An elderly patient presents for a general wellness visit without complaints. Structural examination reveals a group curve in the thoracic region. Which of the following is most associated with this segment's spinal mechanics?

Ans: Group curve → Type I → sidebend into concavity, rotate into convexity

Why: A group curve follows Type I mechanics: it sidebends into the concavity and the bodies rotate toward the convexity.

Explanation & sources

Explanation

A: rotation is greatest at the apex, not the base. B and C describe Type II (same-side coupling, rotation into the concavity). E: the posterior TP is on the convex side, where the bodies rotate.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.7 Q7 (answer key p.11)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 57 (answer slide 58); textbook TB_Scoliosis.pdf p.7 Q7
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q7
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Week 3 · Written Review deck · slide 17
309asked 4×2026Type I group curves

A scoliotic patient presents with right upper back pain. Structural examination reveals a type I dysfunction from T3-T8 and a prominent kyphosis. The right scapula is posterior. Upon forward flexion there is paraspinal muscle prominence on the right upper thoracic area. What spinal motion pattern would you suspect in this scenario?

Ans: Type I T3-T8 + right paraspinal prominence → rotated right → sidebent left

Why: A Type I curve with paraspinal prominence on the right is rotated right and sidebent left (dextroscoliosis, T3-8 NRRSL). Motion is free in those directions.

Explanation & sources

Explanation

D flips both directions. A, B and E use same-side coupling or flexion/extension terms that belong to Type II, and Type I rotation is not limited to the apex segment. The posterior right scapula rides on the posteriorly displaced right ribs.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.6 Q1 (answer key p.10)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 45 (answer slide 46); textbook TB_Scoliosis.pdf p.6 Q1
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q1
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 176-177
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
310asked 3×2026Type I group curves

A patient has a type I curvature from T6-T12, convex left. The apex of the segment is T9. You would expect the thoracic spine to

Ans: Type I convex left → sidebent right, rotated left → free left rotation

Why: Convex left = sidebent right, rotated left (T6-T12 NSrRl). The region moves freely into its dysfunction, so it freely rotates left.

Explanation & sources

Explanation

B: translating right equals sidebending left, which is restricted. C: the apex rotates maximally to the left, not right. D: the curve is sidebent right. E is Type II coupling.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.6 Q2 (answer key p.10)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 47 (answer slide 48); textbook TB_Scoliosis.pdf p.6 Q2
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q2
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
311asked 2×2026Type I group curves

A 40-year-old male presents with a thoracic curve. History reveals it has had a dull, achy quality. Structural examination reveals a large paraspinal hump on the left side. Which of the following is the most likely diagnosis?

Ans: Curve + dull achy (chronic) → Type I; left hump → rotated left, sidebent right

Why: A curve with a dull, achy (chronic) quality is a Type I group curve. A left paraspinal hump means rotation left, so sidebending is right: T7-9 NRLSR.

Explanation & sources

Explanation

A and E are single-segment Type II diagnoses, and E rotates right. B couples rotation and sidebending to the same side, which Type I never does. C is a single segment with the same error. NRLSR is textbook notation for neutral, rotated left, sidebent right (NSrRl).

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.13 Q6 (answer key p.17)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 11 (answer slide 12); textbook TB_Basics.pdf p.13 Q6
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
312asked 2×Type I group curves

A patient with chronic low back pain lies prone and you notice that her entire lumbar spine appears to have a lateral convexity to the left. What is a possible diagnosis?

Ans: Whole region curved = Type I; convex left → sidebent right, rotated left

Why: A whole region in a curve is Type I. Convex left means the spine is sidebent right, and Type I rotates opposite: rotated left.

Explanation & sources

Explanation

A uses Type II for a group curve. C is the pattern for a curve convex right. D couples the same side, which is not Type I.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 53-54
  • 2020 TA Review Exam 1 · TA review · slides 56-57
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Week 3 · IA3 Somatic Dysfunction · slide 58
313top 215Type I group curves

You perform the standing flexion test and see a thoracic rib hump on the left from T1-T10. What is your diagnosis?

Ans: Rib hump left over many segments → Type I rotated left → sidebent right

Why: A rib hump marks the side of rotation (the convexity) of a Type I group curve. Hump on the left → rotated left, sidebent right: T1-T10NSrRl.

Explanation & sources

Explanation

C flips the directions. B and D add E or F, but group curves are neutral and do not change with flexion or extension. Type I always couples rotation and sidebending to opposite sides.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 5, slides 20-21
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
314Type I group curves

A patient with scoliosis has restriction from T2–T5. When bending forward, a rib hump is noticed on the left. Which of the following is the correct diagnosis?

Ans: Multiple segments = Type I; hump left → rotated left → sidebent right

Why: A group dysfunction (T2-T5) follows Type I. Rib hump on the left = rotated left, so sidebent right: T2-T5 NSrRl.

Explanation & sources

Explanation

B flips the directions. C, D and E are Type II (F/E with same-side coupling), which describe single segments.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 58-59
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
315Type I group curves

A patient comes in with upper-mid back pain. You find posterior TPs on the left starting from the level of the spine of the scapula down for 4 segments. What is the patient's diagnosis?

Ans: Spine of scapula = T3, 4 segments → T3-T6; posterior left → NSrRl

Why: The spine of the scapula = T3, so four segments down is T3-T6. Posterior TPs on the left = rotated left; Type I sidebends opposite: T3-T6 NSrRl.

Explanation & sources

Explanation

A and B start at T4, one level too low. D flips the directions. Rule of 3s is not needed here because T1-T3 SPs and TPs are level.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 61-62
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Week 5 · Written Review deck · slide 36
316Type I group curves

An elderly man, Mike, presents to your office complaining of dull back pain that has been persistent for the past 10 years. On palpation, the patient's skin is cool, dry, and the tissues feel doughy. While performing a forward flexion test, you take note of posterior TPs on the right side starting from the spine of the scapula down for 4 segments. What is the most likely somatic dysfunction that you will palpate?

Ans: Chronic + spine of scapula (T3) ×4 segments, posterior right → T3-T6 NSlRr

Why: Chronic pain with cool, doughy tissue fits a chronic Type I curve. Spine of scapula = T3, four segments = T3-T6; posterior TPs right = rotated right, sidebent left.

Explanation & sources

Explanation

B flips the directions. C and D start one level too low at T4, and C also flips the directions. Acute findings (warm, moist, boggy) would fit a more recent dysfunction.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 78-79
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Week 5 · Written Review deck · slide 36
317Type I group curves

A patient comes in with upper back pain. On forward flexion test you see a rib hump on the right from the level of the spine of the scapula to the inferior border of the scapula. On palpation, the TPs do not get better in flexion or extension. On gross examination, the patient's right shoulder is higher. What is your somatic dysfunction diagnosis?

Ans: Spine of scapula T3 → inferior angle T7; no F/E change; hump right → T3-T7 NSlRr

Why: Landmarks give T3 (spine of scapula) to T7 (inferior angle). TPs that don't change in flexion or extension = neutral Type I. Hump right = rotated right, so sidebent left.

Explanation & sources

Explanation

A and C use F or E, but the TPs do not change with flexion or extension. D has the wrong levels and flips the directions. The higher right shoulder is a postural clue, not part of the naming.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 76-77
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Study note
318Type I group curves

A 1st year medical student presents with upper back pain. On observation there is hypertonicity starting at the level of the spine of the scapula to the inferior angle. When you palpate the transverse processes, your left thumb goes deeper. When you ask the patient to bend forward and back, neither makes the transverse processes even. The vertebrae are easier to translate to the right. What is the diagnosis of their somatic dysfunction?

Ans: T3-T7 landmarks; left thumb deeper = right TP posterior; translate right = sidebent left

Why: Spine of scapula to inferior angle = T3-T7. The left thumb goes deeper, so the right TP is posterior (rotated right). No change with flexion or extension = neutral. Easier to translate right = sidebent left. Answer: T3-T7 NSlRr.

Explanation & sources

Explanation

A and B are single Type II segments. C uses E for a curve that does not change with extension. D has the right pattern at the wrong levels. Translation trap: translating right = sidebending left.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 115-116
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
Study note
319Type I group curves

A 40 year old male presents after 'throwing' out his back while lifting a heavy box. The transverse processes from T4 to T9 are all rotated right, with no change in flexion or extension. How would you write this dysfunction?

Ans: T4-T9 all rotated right, no F/E change → Type I → sidebent left

Why: Six segments rotated right with no change in flexion or extension = Type I group curve: sidebent left, rotated right (NSlRr).

Explanation & sources

Explanation

A and B are Type II notations. C lists rotation before sidebending; Type I notation writes sidebending first (NSxRy) because sidebending precedes rotation. D couples the same side. "Threw out his back" hints at trauma, but the palpatory findings define the diagnosis.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 71-72
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 53
320top 215asked 8×2026Type I group curves

Patient presents with back pain. On forward bending you find a rib hump on the right that begins at the spinous process of T8 and ends at spinous process of T12. The TPs in that area are all rotated to the right and do not change in flexion or extension. What is your diagnosis written in "shorthand"?

Ans: SP T8 sits at T9 TPs; SP T12 at T12 → T9-T12; right, no F/E change → NSlRr

Why: Convert the SP landmarks with the rule of 3s: the T8 SP lies at the T9 TPs (T7-T9 project one full level down) and the T12 SP is level with T12. TPs right with no change in flexion/extension = Type I, rotated right, sidebent left: T9-T12NSlRr.

Explanation & sources

Explanation

A and C are Type II diagnoses, which change with flexion or extension. B couples sidebending and rotation to the same side. D shifts the top down a level but also stops at T11; the T12 SP is level with its own TPs (T12 follows T1-T3). Lecture version: SP T7 to SP T10 = T8-T11NSlRr. Other versions of this question use different distractors, same answer.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q2 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 63-64
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 62-65
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 8-10
  • 2024 IA 5 - Thoracic - Fryette's · In-class poll · slides 5-6
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 69-70
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 69-70
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 135-136
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 65
Week 5 · Written Review deck · slide 36
321top 215Type I group curves

You perform the standing flexion test and see a thoracic rib hump on the left from T1-T10. Where would you find a type 2 somatic dysfunction?

Ans: Type II hides at apex or ends of Type I; T1-T10 apex ≈ T5

Why: Type II dysfunctions are found at the apex or the ends of a Type I curve. The apex of a T1-T10 curve is about T5.

Explanation & sources

Explanation

T2 and T3 are neither the apex nor an end (the ends are T1 and T10). T7 is past the apex. Type II should be treated before the Type I curve.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 5, slides 24-25
Lecture slide (1)
Week 3 · Written Review deck · slide 18
322Type I group curves

After assessing Mike by observation, AROM, PROM, forward flexion test, red reflex and TART, your Type I diagnosis is consistent with the rib hump (T3-T6 N Sl Rr). You assess each segment within that group curve to find a Type II SD. Where will the Type II SD likely be located?

Ans: Type II found at apex or extremes of Type I curve → first, apex, last

Why: Type II dysfunctions sit at the transition points of a Type I curve: the first, apex and last segments.

Explanation & sources

Explanation

A is too broad. C misses the apex. D misses the ends. The course wording is "found at apex or extremes of Type I curves."

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 80-81
Lecture slide (1)
Week 3 · Written Review deck · slide 18

5.4 · 10 questions · Questions 323–332

Type II diagnosis

No questions in this section match the current Show filter.

Learn firstWhat you need for 5.4

A Type II dysfunction is a single segment whose coupled motion is controlled by the rotatores (short restrictors) and the facet joints. Discs and the long erector spinae maintain Type I curves instead.

Diagnose it in three steps:

  1. Level: use landmarks (spine of scapula = T3, inferior angle = T7) or the stated level.
  2. Rotation = side of the posterior TP. (“Restricted in left rotation” means rotated right.)
  3. F or E = the position where the asymmetry disappears (becomes symmetric). It worsens in the opposite position. Head to chest / bending forward = flexion; sticking the chest out / looking at the ceiling = extension.

Sidebending goes to the same side as rotation; write rotation first: T3 F Rr Sr.

DiagnosisExpect on examFreedomRestriction (barrier)
T3 F Rr SrRight TP posterior at the spine of scapula; symmetric in flexion, worse in extensionF, Rr, SrE, Rl, Sl
T7 E Rr SrRight TP posterior at the inferior angle; symmetric in extension, worse in flexionE, Rr, SrF, Rl, Sl
T2 F Rl SlLeft TP posterior; worse with chest out/looking up; symmetric with head to chestF, Rl, SlE, Rr, Sr

Mechanism clue: a sudden “tweak” bending forward and right holds that position → T10 F Rr Sr, so flexion is the freedom (extension is restricted). Read the verbs: “prefers / likes / freedom” vs “restricted / barrier”. A Type II at the apex of a curve that improves in flexion (e.g. apex of T3–T7 N Sr Rl) = T5 F Rl Sl.

Direct techniques (ME, HVLA) go toward the restriction; indirect (counterstrain) toward the freedom.

323top 215asked 8×2026Type II diagnosis

In a type II somatic dysfunction of the thoracic or lumbar spine coupled motion is most influenced by which of the following?

Ans: Type II → short restrictors (rotatores) + facets control coupling

Why: Type II dysfunctions are maintained by the short restrictors (rotatores, intertransversarii), and the facets control which way the segment couples.

Explanation & sources

Explanation

Discs and long superficial muscles (erector spinae) maintain Type I group curves. Costovertebral joints mainly limit sidebending. The longitudinal and interspinous ligaments limit flexion and extension rather than steering coupled motion. Type II is a single segment, often traumatic, and is treated before Type I.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q4 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 67-68
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 77-80
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 18-20
  • 2024 IA 5 - Thoracic - Fryette's · In-class poll · slides 11-12
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 73-74
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 73-74
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 141-142
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 80
Week 3 · Written Review deck · slide 18
324top 215asked 7×2026Type II diagnosis

You are reviewing a patient's last visit. The diagnosis documented in the chart includes somatic dysfunctions of the thoracic spine including a notation of T3FRrSr. If this diagnosis is still present on this follow-up visit, which of the following findings would you expect on palpatory exam.

Ans: T3 = spine of scapula; FRrSr → right TP posterior (shows in extension)

Why: T3 is at the spine of the scapula. FRrSr means the segment is rotated right, so the right TP is posterior.

Explanation & sources

Explanation

A and C describe a Type I group curve, not a single Type II segment; C also puts the rotation on the wrong side. B is backward: a flexed dysfunction becomes symmetric in flexion and worsens in extension. E: the inferior angle of the scapula marks T7, not T3.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 61-62
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 58-61
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 3-5
  • 2024 IA 5 - Thoracic - Fryette's · In-class poll · slides 2-3
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 67-68
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 67-68
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 132-133
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 61
Week 5 · IA5 Thoracic & Scoliosis · slide 67
3252026Type II diagnosis

You diagnose your lab partner with a somatic dysfunction of thoracic spine as T7ERrSr. Which of the following findings would you also expect on exam?

Ans: T7 = inferior angle of scapula; ERrSr → right TP posterior

Why: T7 is at the inferior angle of the scapula. ERrSr means the segment is rotated right, so the right TP is posterior.

Explanation & sources

Explanation

B is backward: an extended dysfunction becomes symmetric in extension and worsens in flexion. A and E describe a Type I group curve. D: the spine of the scapula marks T3, not T7.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q1 (answer list at end of doc)
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
326Type II diagnosis

On examination of your patient, you find a posterior transverse process on the right at the level of the spine of the scapula. The right transverse process becomes less posterior with flexion and becomes more prominent in extension. How would you name this somatic dysfunction?

Ans: Spine of scapula = T3; posterior right, better in flexion → FRrSr

Why: Spine of scapula = T3. The right TP is posterior (rotated right), and it improves with flexion and worsens in extension, so the SD is flexed: T3FRrSr.

Explanation & sources

Explanation

B describes rotation left with extension as the freedom. C and D use T7, which is the inferior angle. A Type II SD is named for the position where its asymmetry disappears.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 56-57
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
327Type II diagnosis

Your patient has a posterior TP on the right at the spine of the scapula. When he bends forward the TP disappears under your finger on the right. What is his freedom and what is his restriction?

AnswerDiagnosis T3 FRrSr. Freedom: flexion, rotation right, sidebending right. Restriction: extension, rotation left, sidebending left.

Ans: Spine of scapula = T3 → posterior right TP disappears in flexion → FRrSr; barrier is the opposite

Why: The SD is named for its freedom (position of ease): flexed, rotated right, sidebent right. The restriction is the opposite: extension, rotation left, sidebending left.

Explanation & sources

Explanation

Do not confuse the diagnosis with the barrier. Direct techniques such as muscle energy and HVLA take the segment toward the restriction (ERlSl); indirect techniques such as counterstrain go toward the freedom.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 80-81
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
328top 215asked 3×2026Type II diagnosis

You palpate a posterior transverse process at T2 on the left. It significantly worsens with the patient sticking out their chest and looking up at the ceiling, and becomes symmetrical with the patient dropping their head to their chest. Which of the following is the correct somatic dysfunction diagnosis?

Ans: Posterior left; worse in extension, symmetric in flexion → flexed → T2FRlSl

Why: A posterior left TP means rotation (and Type II sidebending) left. It becomes symmetric with flexion (head to chest) and worse with extension, so the SD is flexed: T2FRlSl.

Explanation & sources

Explanation

A and B rotate right, but the posterior TP is on the left. C is an extended SD, which would become symmetric in extension and worsen in flexion, the opposite of this exam.

Asked in

  • 2026 Textbook Q&A Compilation - Fryette's Practice Questions · Practice questions · slide 155 (answer slide 156)
  • Fryette's Practice Questions with answers · Practice questions · Q2
  • 2025 Fryette's Practice Questions with answers · Practice questions · Q2
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
329Type II diagnosis

You palpate a posterior T6 vertebral transverse process on the left side. When the patient flexes forward the posterior transverse process becomes less prominent and becomes more prominent in extension. What is your thoracic diagnosis?

Ans: Posterior left TP; better in flexion, worse in extension → T6FRlSl

Why: Posterior left TP = rotated left. It improves in flexion and worsens in extension, so the SD is flexed: T6FRlSl.

Explanation & sources

Explanation

A and B rotate right. C has the right side but names extension, which would be the position of ease only if the TP became symmetric in extension.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 41-42
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
330top 2152026Type II diagnosis

You examine your lab partner and find the following: a posterior transverse process at T4 on the right; no transverse process asymmetry at T3 or T5; symmetry of the T4 transverse processes with your partner sticking out their chest. Which of the following is the correct diagnosis for this dysfunction?

Ans: Single segment → Type II; symmetric with chest out (extension); posterior right → T4ERrSr

Why: Only T4 is asymmetric, so it is a single-segment Type II. The TPs become symmetric with extension (sticking out the chest), so it is extended; posterior right = rotated right: T4ERrSr.

Explanation & sources

Explanation

A names flexion, but the asymmetry disappears in extension. B and E name the wrong level and rotation. C is a group curve, yet T3 and T5 are normal.

Asked in

  • 2026 Practice Questions for OMM 1 - Lect 5 Thoracic Spine/Fryette's Principles (Canvas) · Practice questions · Q3
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
331Type II diagnosis

A dad tweaks his back bending over and to the right to pick up his toddler. He develops a somatic dysfunction at T10. Which would you expect to be correct?

Ans: Sudden tweak bent forward + right → Type II FRrSr → freedom = flexion

Why: A sudden "tweak" while bent forward and to the right creates a Type II dysfunction that holds that position: T10 FRrSr. An SD is named for its freedom, so flexion is free.

Explanation & sources

Explanation

A is a Type I pattern (opposite sides). B: flexion is the freedom; extension is the restriction. D and E: the segment prefers rotation and sidebending right, so left is the barrier. Read the verbs: "prefers/likes/freedom" vs "restricted/barrier."

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 83-84
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 67
332Type II diagnosis

On diagnosis, you find that the transverse processes of T3 to T7 are rotated to the left and do not change with flexion or extension. You also find that the transverse processes of the apex of the curve improve with flexion. What would be your shorthand diagnosis of the Type II dysfunction?

Ans: T3-T7 curve apex = T5; apex better in flexion; rotated left → T5FRlSl

Why: The group curve is T3-T7 NSrRl. Type II sits at the apex or ends, and the apex is T5. Its TPs improve with flexion, so it is flexed, rotated and sidebent left: T5FRlSl.

Explanation & sources

Explanation

A is the Type I curve, not the Type II. B: an extended SD improves with extension, not flexion. C is an end segment, but the stem points to the apex. D is not a valid Type II (F with opposite-side coupling).

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  • 2023 TA Review - Written Exam 1 · TA review · slides 117-118
Lecture slides (2)
Week 3 · Written Review deck · slide 18
Week 5 · IA5 Thoracic & Scoliosis · slide 67

5.5 · 10 questions · Questions 333–342

Facets open/closed

No questions in this section match the current Show filter.

Learn firstWhat you need for 5.5

Why does a Type II segment change with flexion and extension? Because one facet is stuck. In flexion both posterior facets should open; in extension both should close.

Extended SD (ERS)Flexed SD (FRS)
Stuck facetLocked closedLocked open
Which sideSame side as the rotationOpposite side to the rotation (“flexion is the weird one”)
Asymmetry disappears inExtension (both facets can close)Flexion (both facets can open)
Asymmetry worsens inFlexion: one facet stays closed, the vertebra pivots on it and rotates/sidebends toward that sideExtension: one facet stays open, the vertebra rotates/sidebends to the opposite side
DiagnosisStuck facet
E Rr SrRight facet closed
E Rl SlLeft facet closed
F Rr SrLeft facet open
F Rl SlRight facet open

Check yourself: right facet locked open + extension → right can't close → segment turns left → F Rl Sl. Right facet locked closed + flexion → right can't open → pivots and turns right → E Rr Sr. Testing an FRS in flexion (or an ERS in extension) gives no asymmetry, and that is the patient's most comfortable position.

Lecture slide for this section (1)
IA5 slide 67: ERS vs FRS and the facets
333top 215asked 10×2026Facets open/closed

You examine your partner and note the following diagnosis: T5 F Rr Sr. Which of the following is correct?

Ans: Flexed SD → facet stuck open, opposite side to rotation → FRrSr → left open

Why: In a flexed dysfunction a facet is stuck open, on the side opposite the rotation and sidebending. FRrSr → left facet locked open.

Explanation & sources

Explanation

A (right closed) is ERrSr. B (right open) is FRlSl. C (left closed) is ERlSl. Lecture summary: ERrSr = closed right, ERlSl = closed left, FRrSr = open left, FRlSl = open right. "Flexion is the weird one."

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 73-74
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 89-90
  • 2026 Textbook Q&A Compilation - Fryette's Practice Questions · Practice questions · slide 157 (answer slide 158)
  • Fryette's Practice Questions with answers · Practice questions · Q3
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 42-44
  • 2025 Fryette's Practice Questions with answers · Practice questions · Q3
  • 2024 IA 8 - Scoliosis · In-class poll · slides 5-6
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 92-93
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 91-92
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 189-190
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 90
Week 5 · IA5 Thoracic & Scoliosis · slide 73
334top 215asked 7×2026Facets open/closed

You examine your partner and note the following diagnosis: T3 E Rl Sl. Which of the following is correct?

Ans: Extended SD → facet stuck closed, same side as rotation → ERlSl → left closed

Why: In an extended dysfunction a facet is stuck closed on the same side as rotation and sidebending. ERlSl → left facet locked closed.

Explanation & sources

Explanation

A (right closed) is ERrSr. B (right open) is FRlSl. D (left open) is FRrSr. When flexion is attempted, the left facet cannot open, so the vertebra pivots around it and turns left.

Asked in

  • 2026 Textbook Q&A Compilation - Fryette's Practice Questions · Practice questions · slide 159 (answer slide 160)
  • Fryette's Practice Questions with answers · Practice questions · Q4
  • 2025 Fryette's Practice Questions with answers · Practice questions · Q4
  • 2024 IA 8 - Scoliosis · In-class poll · slides 7-8
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 94-95
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 93-94
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 191-192
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 70
3352026Facets open/closed

Based on the diagnosis of T7 F RlSl, which of the following is a true statement?

Ans: Flexed SD → stuck open on side opposite rotation → FRlSl → right open

Why: A flexed SD has a facet stuck open on the side opposite the rotation. FRlSl → right facet stuck open.

Explanation & sources

Explanation

A (right closed) is ERrSr. B (left open) is FRrSr. D (left closed) is ERlSl. Check: in extension the right facet cannot close, so the segment turns left, matching Rl Sl.

Asked in

  • 2026 Practice Questions for OMM 1 - Lect 5 Thoracic Spine/Fryette's Principles (Canvas) · Practice questions · Q4
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
336Facets open/closed

A new patient is examined in the OMM clinic. The physician diagnoses a flexion somatic dysfunction with sidebending and rotation to the right. What is the orientation of the facet joint causing the rotation and sidebending to the right?

Ans: Flexion SD rotated right → open facet on opposite side → left locked open

Why: In a flexion SD the culprit facet is stuck open on the side opposite the rotation and sidebending. Rotated and sidebent right → left facet locked open.

Explanation & sources

Explanation

A (right closed) is the extended version, ERrSr. C (right open) would turn the segment left. D (left closed) is ERlSl. In extension the left facet should close but cannot, so the segment turns right.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 111-112
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
337asked 2×Facets open/closed

You diagnose a somatic dysfunction of T3 ERlSl on your patient. Describe the positions of the posterior facets:

Ans: Extended SD → left facet stuck closed → in flexion it stays closed → turns left

Why: An extended SD has a facet stuck closed. In extreme flexion both facets should open, but the left stays closed, so the vertebra pivots and rotates and sidebends toward the closed side (left).

Explanation & sources

Explanation

A describes a flexed SD: in extension one facet stays open and the vertebra turns the opposite way. B: if both facets open there is no asymmetry. D: a segment turns away from a facet stuck open, not toward it.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 80-81
  • 2022 TA Review - Exam 1 · TA review · slides 65-66
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
Week 5 · IA5 Thoracic & Scoliosis · slide 70
338asked 2×Facets open/closed

You diagnose a somatic dysfunction of T3 FRlSl on your patient. Describe the positions of the posterior facets:

Ans: Flexed SD → right facet stuck open → in extension it stays open → turns left

Why: A flexed SD has a facet stuck open. In extreme extension both facets should close, but the right stays open, so the vertebra rotates and sidebends to the opposite side (left).

Explanation & sources

Explanation

C describes an extended SD. B is the normal flexed state with no asymmetry. D has the direction backward: the segment turns away from the open facet.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 125-126
  • 2020 TA Review Exam 1 · TA review · slides 114-115
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 67
Week 5 · IA5 Thoracic & Scoliosis · slide 73
339asked 2×Facets open/closed

A thoracic segment has a flexion somatic dysfunction: the right facet is locked open and the segment is rotated left. You test it in flexion. What happens?

AnswerNo asymmetry: both facets can open easily, so there is no rotation or sidebending asymmetry. Flexion is the most comfortable position for the patient.

Ans: Flexed SD (facet stuck open) + flexion → both facets open → asymmetry disappears

Why: A flexed SD has a facet stuck open. Flexion asks both facets to open, which they can, so the TPs become symmetric. FRS "disappears" in flexion.

Explanation & sources

Explanation

The asymmetry shows in the opposite motion: in extension the right facet cannot close, so the segment turns left. The same logic runs in reverse for an extended SD: it disappears in extension and worsens in flexion.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slide 130
  • 2020 TA Review Exam 1 · TA review · slide 119
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
340asked 2×Facets open/closed

A thoracic segment has a flexion somatic dysfunction with the right facet locked open. You test it in extension. What happens?

AnswerThe asymmetry is exaggerated: the left facet closes normally, but the right facet is locked open and cannot close, so the segment sidebends and rotates left. Diagnosis (position of ease) = flexed, rotated left, sidebent left (FRlSl).

Ans: Right facet stuck open + extension → right cannot close → segment turns left → FRlSl

Why: Extension asks both facets to close. The right facet is stuck open, so the segment pivots and turns to the opposite side (left). The asymmetry is worse in extension.

Explanation & sources

Explanation

Contrast with flexion, where both facets open and the asymmetry disappears. A flexed SD always has its open facet on the side opposite the rotation (FRlSl = right open).

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slide 131
  • 2020 TA Review Exam 1 · TA review · slide 120
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 73
341asked 2×Facets open/closed

A thoracic segment has an extension somatic dysfunction with the right facet locked closed. You test it in extension. What happens?

AnswerNo asymmetry: both facets can close easily, so there is no rotation or sidebending asymmetry. Extension is the most comfortable position for the patient.

Ans: Extended SD (facet stuck closed) + extension → both facets close → asymmetry disappears

Why: An extended SD has a facet stuck closed. Extension asks both facets to close, which they can, so the TPs become symmetric. ERS "disappears" in extension.

Explanation & sources

Explanation

The asymmetry appears in flexion, when the right facet cannot open and the segment turns right. Mirror image of the flexed SD, which disappears in flexion.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slide 133
  • 2020 TA Review Exam 1 · TA review · slide 122
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 70
342asked 2×Facets open/closed

A thoracic segment has an extension somatic dysfunction with the right facet locked closed. You test it in flexion. What happens?

AnswerAsymmetry worsens: the left facet opens, but the right facet is locked closed, so the segment pivots on it and rotates and sidebends right. Diagnosis = ERrSr (extended, rotated right, sidebent right).

Ans: Right facet stuck closed + flexion → right cannot open → pivots → turns right → ERrSr

Why: Flexion asks both facets to open. The right facet is stuck closed, so the segment pivots around it and rotates and sidebends toward it (right). The asymmetry is worse in flexion.

Explanation & sources

Explanation

In an extended SD the closed facet is on the same side as the rotation (ERrSr = right closed). In extension both facets close and the asymmetry disappears.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slide 134
  • 2020 TA Review Exam 1 · TA review · slide 123
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 70

5.6 · 3 questions · Questions 343–345

Viscerosomatic levels

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A spinal dysfunction that keeps coming back right after OMT (improves briefly, returns the next day) or has acute findings in a hospitalized patient suggests a viscerosomatic reflex: an irritated organ facilitating the spinal segments that share its sympathetic innervation. Match the segments to the organ:

LevelsViscera (sympathetic innervation)
T1–T4Head and neck
T1–T6Heart and lungs (heart tends to give left-sided findings)
T5–T9 (celiac)Upper abdominal viscera. Right: liver, gallbladder, duodenum, head of pancreas. Left: stomach, spleen, tail of pancreas
T10–T11 (superior mesenteric)Rest of small intestine, kidney, upper ureter (often given as T9–T12, so T11–T12 findings still mean kidney/upper ureter), gonads; right: appendix, cecum, ascending colon
T12–L2 (inferior mesenteric)Descending and sigmoid colon, lower ureter, pelvic organs (bladder, uterus, prostate)

Worked examples: rib hump from the SP of T10 to the SP of T12 → by the rule of 3s the segments are T11–T12 → kidney / upper ureter (UTI in the upper ureters). Acute T6–7 F Rr Sr with bogginess → right T5–T9 → liver (hepatitis). Acute T7–8 with a left red reflex → left T5–T9 → stomach (gastritis). Pneumonia would be T1–T6; sinusitis T1–T4.

Lecture slide for this section (1)
Written Review slide 34: sympathetic innervation by level
343top 215asked 7×2026Viscerosomatic levels

Patient presents with back pain that improves with manipulation only briefly then returns the next day. On forward bending you find a rib hump on the right that begins at the spinous process of T10 and ends at spinous process of T12. The TPs in that area are all rotated to the right and do not change in flexion or extension. You suspect a visceral origin of this somatic dysfunction. What is highest on your differential?

Ans: SP T10-T12 → segments T11-T12 → T10-T11 level → kidney/upper ureter

Why: Rule of 3s: the T10 SP lies at the T11 TPs and the T12 SP at T12, so the segments are T11-T12. A curve that keeps coming back after OMT suggests a viscerosomatic reflex, and T10-T11 (T9-T12) supplies the kidney and upper ureter.

Explanation & sources

Explanation

Hepatitis, gastritis and gallbladder disease map to T5-T9 (upper GI). Pneumonia maps to T1-T6. An older version offered "kidney infection (pyelonephritis)," same level and same answer.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 65-66
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 49-52
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 14-16
  • 2024 IA 5 - Thoracic - Fryette's · In-class poll · slides 8-9
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 71-72
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 71-72
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 138-139
Lecture slides (2)
Week 8 · IA5 Thoracic & Scoliosis · slide 52
Week 8 · Written Review deck · slide 34
3442026Viscerosomatic levels

Examination of a hospitalized patient reveals the following somatic dysfunction: T6-7 F RrSr. There are associated acute changes of bogginess and marked tenderness consistent with an acute reflex at these levels. Which of the following diagnoses could cause this somatic dysfunction based on visceral segmental innervation?

Ans: Acute T6-7 → T5-T9 upper GI; right rotation → liver → hepatitis

Why: T6-7 falls in T5-T9 (upper abdominal viscera). Right-sided T5-T9 findings fit the liver, gallbladder and duodenum.

Explanation & sources

Explanation

Pneumonia maps to T1-T6, which only touches T6. Kidney maps to T10-T11. Appendicitis maps to T10-T11 on the right. Acute viscerosomatic changes are boggy, warm and tender.

Asked in

  • 2026 Practice Questions for OMM 1 - Lect 5 Thoracic Spine/Fryette's Principles (Canvas) · Practice questions · Q2
Lecture slide (1)
Week 8 · Written Review deck · slide 34
345top 2152026Viscerosomatic levels

A patient is evaluated in the emergency department and found to have an acute somatic dysfunction of T7-8 with a marked red reflex on the left side with edema. You suspect a visceral cause for the somatic dysfunction. Which of the following clinical diagnoses is consistent with these TART findings based on shared segmental innervation patterns?

Ans: T7-8 = T5-T9 upper GI; left-sided → stomach → gastritis

Why: T7-8 is in T5-T9 (upper GI). Left-sided findings fit the stomach (left: stomach, spleen, tail of pancreas).

Explanation & sources

Explanation

Hepatitis is also T5-T9 but right-sided. Colitis maps lower (T10-T11 for the right colon, T12-L2 for descending and sigmoid). UTI maps to T10-T11 (kidney, upper ureter) or T12-L2 (bladder). Sinusitis maps to T1-T4 (head and neck).

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q3 (answer list at end of doc)
Lecture slide (1)
Week 8 · Written Review deck · slide 34

5.7 · 20 questions · Questions 346–365

Scoliosis types & naming

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Scoliosis is a lateral (coronal-plane) curve of a group of vertebrae: sidebending with coupled rotation toward the convexity (Type I mechanics). It is more common in females, and most children with it have no symptoms.

Naming: name the curve for its convexity. The spine is sidebent toward the concavity.

DextroscoliosisLevoscoliosis
ConvexRightLeft
Sidebent / concaveLeftRight
Vertebral bodies rotate (Type I)RightLeft
Rib humpRightLeft
Diagnosis exampleT3–T12 N Sl RrN Sr Rl

Convex vs concave side: on the convex side the vertebral bodies turn toward it and push the ribs posteriorly (the rib hump is caused by spinal rotation, not muscle), the ribs are spread apart (easier expansion/breathing on that side), and the muscles are stretched and weak. On the concave side the ribs crowd together, the muscles (e.g. erector spinae) are short and tight, and the spinous processes point toward the concavity.

Types of structural scoliosis:

TypeKey facts
IdiopathicMost common: 70–90% of curves; adolescent idiopathic most common; female predominance; often a family history / genetic predisposition (so structural scoliosis “can be classified as genetic”)
CongenitalPresent from birth (e.g. hemivertebra); about 75% progressive (“often progress”)
AcquiredOsteomalacia, inflammation, sciatic irritability, psoas syndrome, healed leg fracture, hip prosthesis, short leg syndrome, degenerative
NeuromuscularMuscular dystrophy, cerebral palsy

The apex is the most rotated vertebra (highest point of the curve). The most tilted vertebrae at the top and bottom are the end vertebrae used for the Cobb angle. Structural curves can be C- or S-shaped, and they are not reversed by OMT. Functional vs structural is decided by reversibility (a functional hump levels out when sidebending toward the hump/convexity; functional can become structural, never the reverse), not by a 15° cutoff (see 5.8).

Lecture slides for this section (2)
Written Review slide 28: types of structural scoliosis
Written Review slide 29: naming scoliosis
346top 215asked 8×2026Scoliosis types & naming

A mother brings her 11-year-old daughter in for a scoliosis evaluation. She does not complain of back pain, and her past medical history is unremarkable. There is a family history of scoliosis; her mother was diagnosed with scoliosis as a child. Your physical exam shows no leg length discrepancy but does reveal asymmetry of the posterior chest wall on bending forward of the trunk. Which of the following statements is correct regarding this patient's diagnosis?

Ans: Congenital scoliosis → ~75% progressive → "often progress" is true

Why: Congenital curves are about 75% progressive, so "congenital curves often progress" is true.

Explanation & sources

Explanation

A: idiopathic causes 70-90% of curves, not short leg. B: a functional hump levels out when the patient sidebends toward the convexity (the hump), not the concavity. C: scoliosis is named for the convexity, and the short, tight erector spinae are on the concave side, so short muscles on the left means convex right (dextroscoliosis). D: functional curves can become structural, not the reverse.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q6 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 75-76
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 7-10
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 45-47
  • 2024 IA 8 - Scoliosis · In-class poll · slides 9-10
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 96-97
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 95-96
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 193-194
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 10
Week 5 · Written Review deck · slide 28
347top 215asked 4×2026Scoliosis types & naming

An elderly patient presents for a general wellness visit without complaints. Structural examination reveals a group curve in the thoracic region. The most likely cause in this patient is

Ans: Most common cause of scoliosis → idiopathic (70-90%)

Why: Idiopathic scoliosis accounts for 70-90% of scoliotic curves, so it is the most likely cause. Osteopathic thinking holds that some are compensation for an unlevel sacral or cranial base.

Explanation & sources

Explanation

Cerebral palsy is neuromuscular. Congenital malformation is congenital (about 75% progressive). Psoas syndrome and inflammation are acquired causes. Short leg syndrome, listed in another version, is also acquired or functional.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.8 Q8 (answer key p.11)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 59 (answer slide 60); textbook TB_Scoliosis.pdf p.8 Q8
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q8
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 113-114
Lecture slide (1)
Week 5 · Written Review deck · slide 28
348asked 2×Scoliosis types & naming

A 16-year-old male's school screening indicated scoliosis. He has no back pain; his father had scoliosis as a child, untreated. There is no leg length discrepancy, but there is asymmetry of the back on forward bending. You suspect:

Ans: Adolescent + family history + no short leg + forward-bend asymmetry → idiopathic

Why: An adolescent with a family history, no leg length discrepancy and asymmetry on forward bending most likely has idiopathic (structural) scoliosis, the most common type.

Explanation & sources

Explanation

Functional scoliosis needs a cause such as a short leg, muscle hypertonicity or compensation, and none is given. Neuromuscular scoliosis comes with conditions such as CP or muscular dystrophy. A heel lift is for a short leg, which he does not have.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 162-163
  • 2020 TA Review Exam 1 · TA review · slides 152-153
Lecture slide (1)
Week 5 · Written Review deck · slide 28
349Scoliosis types & naming

Structural scoliosis:

Ans: Structural = idiopathic, genetic predisposition, fixed → can be called genetic

Why: Structural scoliosis is also called idiopathic, and it often has a genetic predisposition.

Explanation & sources

Explanation

A: OMT can ease symptoms and may slow progression, but it does not reverse a structural curve. B: structural curves do not reduce with forward bending, sidebending or rotation. C: they can be C- or S-shaped; neither is "usually" the rule.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 215-216
Lecture slides (2)
Week 5 · Written Review deck · slide 28
Week 5 · IA5 Thoracic & Scoliosis · slide 14
350Scoliosis types & naming

In the wonderful land of Wakanda, you were peacefully walking in the palace until you see Bridget, Jasmine, and Janet fighting Killmonger as he tries to attack. As they defeat Killmonger, Bridget's love, you notice an unequal leg length and very curved spine as they tie him up. What vertebral disorder does Killmonger have?

Ans: Unequal leg length + curved spine → scoliosis

Why: A lateral spinal curve with an unequal leg length describes scoliosis. Short leg syndrome is a recognized cause.

Explanation & sources

Explanation

Sway back, military posture and flat back are sagittal-plane postural types, not a lateral curve. A short leg tilts the sacral base, and the spine curves to keep the eyes level.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 43-44
Lecture slides (2)
Week 5 · Written Review deck · slide 28
Week 5 · Written Review deck · slide 31
351Scoliosis types & naming

Which of the following is true regarding scoliosis?

Ans: Named for convexity → sidebent left = convex right = dextroscoliosis

Why: Scoliosis is named for the convexity. A curve sidebent left is convex right, which is dextroscoliosis.

Explanation & sources

Explanation

B: scoliosis is more common in females. A: most children with scoliosis have no symptoms, as in the pain-free screening vignettes. D: structural vs functional depends on whether the curve reverses, not on a 15-degree cutoff.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 109-110
Lecture slides (2)
Week 5 · Written Review deck · slide 29
Week 5 · Written Review deck · slide 28
352asked 2×Scoliosis types & naming

Your patient with scoliosis has a curve which is convex on the left and the spine sidebends to the right. What do you name this?

Ans: Convex left (sidebent right) → named for convexity → levoscoliosis

Why: Scoliosis is named for the side of the convexity. Convex left (sidebent right) = levoscoliosis.

Explanation & sources

Explanation

Dextroscoliosis is convex right, with the spine sidebent left. Trap: naming the curve for the sidebending direction instead of the convexity.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 182-183
  • 2020 TA Review Exam 1 · TA review · slides 172-173
Lecture slide (1)
Week 5 · Written Review deck · slide 29
353top 215Scoliosis types & naming

A 12-year-old adolescent undergoes a scoliosis screening at school. On forward bend test, the examiner notes a thoracic curvature that is convex to the left. Which of the following best describes this spinal curvature?

Ans: Convex left → levoscoliosis → spine sidebent right (toward concavity)

Why: Named for the convexity: convex left = levoscoliosis. The spine is sidebent right, toward the concavity.

Explanation & sources

Explanation

B pairs levoscoliosis with sidebending toward the convexity, which is backward. C and D are dextroscoliosis (convex right). Concave side = sidebending side.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 96-97
Lecture slide (1)
Week 5 · Written Review deck · slide 29
354Scoliosis types & naming

A patient is side bent to the right. Which side of the curve is convex and which is concave?

AnswerConvex on the left, concave on the right.

Ans: Sidebending side = concave side → SB right → concave right, convex left

Why: The spine bends toward the concavity, so sidebent right = concave right, convex left (a levoscoliosis pattern).

Explanation & sources

Explanation

Always name the curve for the convexity: convex left = levoscoliosis. In a Type I curve the bodies rotate toward the convexity, so rotation would be left.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 38-39
Lecture slide (1)
Week 5 · Written Review deck · slide 29
355Scoliosis types & naming

Concept check: is the side of lumbar sidebending the concave or the convex side?

AnswerConcave side.

Ans: Bending toward a side shortens it → sidebending side = concavity

Why: The side the spine sidebends toward is shortened and becomes the concavity. The opposite side is the convexity.

Explanation & sources

Explanation

Example: dextroscoliosis is convex right, so the spine is sidebent left and the left side is concave. The concave side has the shortened, tight muscles; ribs crowd together there.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 42-43
Lecture slide (1)
Week 5 · Written Review deck · slide 29
356Scoliosis types & naming

Name the scoliosis in the image:

Ans: Image: curve bulges right (ribs spread right) → convex right → dextroscoliosis

Why: In the drawing (posterior view) the thoracic curve bulges to the right, with the ribs spread on the right. Convex right = dextroscoliosis.

Explanation & sources

Explanation

Levoscoliosis is convex left. The label in the image gives a second clue: ribs crowd on the concave side and spread on the convex side.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 221-222
Lecture slide (1)
Week 5 · Written Review deck · slide 29
357Scoliosis types & naming

On the following image, the ribs are further apart on the:

Ans: Ribs spread on convex side (right) → more room → easier expansion

Why: Ribs spread apart on the convex side (here the right) and crowd together on the concave side. More space means easier expansion on the convex side.

Explanation & sources

Explanation

B and D call the right side concave, but it is convex. C reverses the breathing effect; compression is on the concave side. Large curves still compromise breathing overall (more than 50 degrees).

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 219-220
Lecture slide (1)
Week 5 · Written Review deck · slide 29
358top 215Scoliosis types & naming

You are examining a patient with a structural scoliosis in the mid thoracic area. The concavity of the curve is on the left side. Which of the following correlate with your findings?

Ans: Concave left → convex right → right ribs spread apart

Why: Concavity on the left means convexity on the right. Ribs are spread on the convex side and crowded on the concave side.

Explanation & sources

Explanation

A: the vertebral body deviates toward the convexity (right). B: the spinous process deviates toward the concavity (left). D reverses the rib spacing.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 212-213
Lecture slide (1)
Week 5 · Written Review deck · slide 29
359top 215Scoliosis types & naming

When the ribs are pushed posteriorly on the Left with a Scoliotic curve:

Ans: Ribs posterior on left = convex left → SP swings to concave right

Why: Ribs are pushed posteriorly on the convex side, so the convexity is left. The vertebral body turns toward the convexity and the spinous process swings to the concave (right) side.

Explanation & sources

Explanation

A and D put the concavity or convexity on the wrong side. B has the SP going toward the convexity; the body goes there, the SP goes the other way.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 217-218
Lecture slide (1)
Week 5 · Written Review deck · slide 29
360Scoliosis types & naming

When vertebrae rotate in a scoliotic curve (rib hump), which direction does the vertebral body point and which direction does the spinous process point?

AnswerThe vertebral body rotates toward the convexity; the spinous process points toward the concavity.

Ans: Rotation toward convexity → body to convex side → SP (behind) swings to concave side

Why: In scoliosis the vertebral body turns toward the convexity and pushes the ribs back there (the rib hump). The spinous process, behind the body, points toward the concavity.

Explanation & sources

Explanation

Example: right thoracic (dextro) curve = sidebent left, rotated right; the bodies face right and the SPs swing left. Ribs on the concave side crowd together.

Asked in

  • 2022 Instructor Exam Review (Dr. Banihashem) - Exam 1 · Instructor review · p.2, scoliosis photo + 'Directions of vertebra when they rotate'
Lecture slide (1)
Week 5 · Written Review deck · slide 29
361top 215asked 3×2026Scoliosis types & naming

A 15-year-old female presents for routine follow-up for idiopathic scoliosis. History is significant for exertional dyspnea with an associated decreased respiratory excursion. Structural examination is significant for obvious paravertebral humping on the right. A comprehensive evaluation for cardiovascular disease is unremarkable; however pulmonary function testing is abnormal. The paravertebral hump seen during structural examination is the result of

Ans: Paravertebral hump → vertebral rotation pushes convex-side ribs back → spinal rotation

Why: The hump is caused by spinal rotation: the vertebrae rotate toward the convexity and push the ribs on the convex side posteriorly.

Explanation & sources

Explanation

B and D put the change on the concave side; the hump is on the convex side. A and C blame muscle size, but the hump is bony (ribs), not muscular.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.8 Q10 (answer key p.11)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 63 (answer slide 64); textbook TB_Scoliosis.pdf p.8 Q10
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q10
Lecture slide (1)
Week 5 · Written Review deck · slide 29
362asked 3×2026Scoliosis types & naming

A 15-year-old female presents for routine follow-up for idiopathic scoliosis. History is significant for exertional dyspnea with an associated decreased respiratory excursion. Structural examination is significant for obvious paravertebral humping on the right. A comprehensive evaluation for cardiovascular disease is unremarkable; however pulmonary function testing is abnormal. The most likely diagnosis is

Ans: Right hump → rotated right → Type I sidebent left → convex right → dextro

Why: A right paravertebral hump = rotated right. Type I sidebends the opposite way (left), so the convexity is right: dextroscoliosis, rotated right, sidebent left.

Explanation & sources

Explanation

A is dextro but flips the rotation. C, D and E are levoscoliosis (convex left). E also couples the same side, which group curves do not do.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.8 Q11 (answer key p.12)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 65 (answer slide 66); textbook TB_Scoliosis.pdf p.8 Q11
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q11
Lecture slide (1)
Week 5 · Written Review deck · slide 29
363top 215Scoliosis types & naming

A 13 year old boy presents to your office after the school nurse noticed a rib hump from T3 to T12. After obtaining x-rays you calculate a cobb angle of 24 degrees and diagnose a moderate, dextroscoliosis. Which somatic dysfunction are you most likely to find?

Ans: Dextroscoliosis = convex right → sidebent left, rotated right → T3-12 NSlRr

Why: Dextroscoliosis = convex right = sidebent left, rotated right. A scoliotic curve is a neutral Type I curve: T3-12NSlRr.

Explanation & sources

Explanation

A and D use F or E, which belong to single Type II segments. B and C describe a levoscoliosis (sidebent right, rotated left). Cobb 24 degrees is moderate (20-45).

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 210-211
Lecture slides (2)
Week 5 · Written Review deck · slide 29
Week 5 · IA5 Thoracic & Scoliosis · slide 53
364Scoliosis types & naming

The apex of a scoliotic curve is:

Ans: Apex = vertebra at the peak of the hump → most rotated

Why: The apex is the vertebra at the highest point of the curve. It is the most rotated vertebra, and it defines the curve's location.

Explanation & sources

Explanation

A and B are the end vertebrae, which are the most tilted and are used to draw the Cobb angle. D describes the junction between two curves in an S-curve, not the apex.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 225-226
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
365asked 2×Scoliosis types & naming

Which is characteristic of scoliosis?

Ans: Scoliosis = lateral curve (sidebending) + coupled vertebral rotation

Why: Scoliosis is a lateral curvature (sidebending) of a group of vertebrae with coupled rotation toward the convexity, which makes the rib hump.

Heads up: The 2020 TA key (speaker notes) marks B, sidebending and flexion. The original options C and E were duplicates (sidebending and rotation). The 2026 lecture defines scoliosis as a lateral (coronal-plane) deviation with rotation toward the convexity, so C is given and the duplicate E is dropped.

Explanation & sources

Explanation

Flexion and extension describe sagittal-plane curves (kyphosis, lordosis). These can accompany scoliosis but do not define it. A describes anteroposterior curves.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 254-255
  • 2020 TA Review Exam 1 · TA review · slides 246-247
Lecture slides (2)
Week 5 · Written Review deck · slide 29
Week 5 · Written Review deck · slide 28

5.8 · 11 questions · Questions 366–376

Scoliosis screening & reversibility

No questions in this section match the current Show filter.

Learn firstWhat you need for 5.8

Screening: the AAP recommends screening at ages 10, 12, 14 and 16. Use the Adam's forward bend test (look for a rib hump) plus checking the horizontal planes for levelness (occiput, shoulders, scapulae, iliac crests, PSIS, greater trochanters). X-rays confirm and measure (Cobb angle) after a positive screen; bracing is treatment, not screening.

Classifying a curve (RSLE, “wrestle”): Reversibility (functional vs structural), Severity (Cobb angle), Location (apex: thoracic, lumbar, double major), Etiology (idiopathic, congenital, acquired, neuromuscular). Having the patient sidebend during the Adam's test checks reversibility.

FunctionalStructural
Reverses with sidebending, rotation or forward bending?Yes; the hump levels out when the patient sidebends toward it (toward the convexity)No: fixed
CausesPostural factors, compensation, muscle hypertonicity (Type I “bowstring” effect, not Type II) or weakness, short leg, some neurological conditions, traumaIdiopathic (genetic), congenital, etc.
NotesTreat while flexible, or it can progress to structural (functional → structural, never the reverse)First sign: early loss of spinal flexibility

The course key treats any change in the hump with sidebending (Adam's reversibility test) as a flexible, functional curve. Example: a curve that began after a car accident, improves with sidebending, and whose apparent short leg levels out after OMT = functional scoliosis secondary to trauma (an anatomic short leg would not level out).

Lecture slide for this section (1)
IA5 slide 14: functional vs structural (reversibility)
366top 215asked 8×2026Scoliosis screening & reversibility

The American Academy of Pediatrics recommends scoliosis screening at routine health visits at ages 10, 12, 14, and 16. Which of the following are used in screening for scoliosis?

Ans: Screening → look for rib hump → Adam's forward bend test

Why: Screening uses the Adam's forward bend test: the patient bends forward and you look for a rib hump.

Explanation & sources

Explanation

X-rays confirm the curve and measure the Cobb angle after a positive screen. Bracing is treatment. Passive sidebending tests reversibility once a curve is found. Scoliosis is a coronal-plane curve, so sagittal-plane asymmetry is the wrong plane. Universal school screening is no longer routine in the US.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q7 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 77-78
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 15-18
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 53-55
  • 2024 IA 8 - Scoliosis · In-class poll · slides 17-18
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 98-99
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 97-98
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 200-201
Lecture slide (1)
Week 5 · Written Review deck · slide 30
367asked 2×Scoliosis screening & reversibility

Which test will best screen for scoliosis?

Ans: Screen → Adam's test + level of horizontal planes

Why: Screen with Adam's forward bend test plus checking the horizontal planes (occiput, shoulders, scapulae, iliac crests, PSIS, greater trochanters) for levelness.

Explanation & sources

Explanation

Thomas test checks hip flexor tightness. Straight leg raise checks lumbar radicular pain or hamstrings. Spurling's checks cervical radiculopathy, and x-rays confirm rather than screen.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 171-172
  • 2020 TA Review Exam 1 · TA review · slides 161-162
Lecture slide (1)
Week 5 · Written Review deck · slide 30
368asked 2×Scoliosis screening & reversibility

You notice a rib hump on the right with Adam's forward flexion test; it gets better with sidebending right and left. What classification of scoliosis is this testing?

Ans: Hump changes with sidebending → tests whether curve reverses → reversibility

Why: Sidebending to see if the hump levels out tests reversibility (functional vs structural).

Explanation & sources

Explanation

Severity is the Cobb angle. Location is the apex vertebra (thoracic, lumbar, double major). Etiology is the cause (idiopathic, congenital, acquired, neuromuscular). Mnemonic RSLE ("wrestle").

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 174-175
  • 2020 TA Review Exam 1 · TA review · slides 164-165
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
369top 215Scoliosis screening & reversibility

You are performing a musculoskeletal exam on your partner's thoracic spine and find a mid-thoracic left sided rib hump on Adam's forward bend test which minimizes with sidebending to the left. What is the significance of this finding?

Ans: Hump left lessens with sidebending left (toward hump) → reversible → functional

Why: The hump lessens when the patient sidebends toward it, so the curve is reversible, which means a functional curve.

Explanation & sources

Explanation

A: a structural curve would not change. B: the hump is on the convex side, not the concave side. D: rib humps come from Type I group curves.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 39-40
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
370Scoliosis screening & reversibility

You notice a rib hump on your patient in the right thoracic region with the Adam's Forward Flexion test. When the patient sidebends, the rib hump improves. Which of the following describes this patient's Dx?

Ans: Hump improves with sidebending → reversible → functional

Why: A rib hump that improves with sidebending is reversible, which is functional scoliosis.

Explanation & sources

Explanation

Structural curves do not reduce with sidebending, rotation or forward bending. B: a right hump means convex right; the short, hypertonic muscles are on the concave (left) side.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 74-75
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
371top 215Scoliosis screening & reversibility

While performing the Adam's Forward Bend Test, you notice a rib hump on your patient's thoracic region. When the patient sidebends, the rib hump does not improve. Which of the following describes the patient's diagnosis, and what is the first sign of this condition?

Ans: Hump does not improve with sidebending → structural; first sign = early loss of flexibility

Why: A hump that does not improve with sidebending is structural. The lecture lists early loss of spinal flexibility as its first sign.

Explanation & sources

Explanation

A and B call it functional, but functional curves reverse. D has the right diagnosis but the wrong first sign; asymmetry that resolves with forward bending would point to a functional curve.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 92-93
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
372Scoliosis screening & reversibility

Which of the following is not true about functional scoliosis:

Ans: Functional = reversible → it DOES improve with sidebending → D is false

Why: Functional scoliosis is reversible, so it does improve with sidebending. "It will not improve" is the false statement.

Explanation & sources

Explanation

A, B and C are true: functional curves come from postural factors, compensation, muscle hypertonicity or weakness, or a short leg, and they reverse.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 227-228
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
373Scoliosis screening & reversibility

A 16-year-old boy presents for evaluation of uneven shoulders noticed by his parents. During the Adam's forward bending test, his spinal curve corrects with sidebending and he is diagnosed with functional scoliosis. All of the following are characteristics of functional scoliosis except:

Ans: Functional scoliosis hypertonicity = Type I (bowstring), not Type II → C false

Why: The muscle hypertonicity behind functional scoliosis comes from Type I group dysfunction (a bowstring effect of long muscles), not Type II.

Explanation & sources

Explanation

A, B and D are true: functional curves are postural or biomechanical, must be treated while flexible or they can become structural, and come from causes such as short leg syndrome or some neurological conditions.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 94-95
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
374top 215asked 2×Scoliosis screening & reversibility

Your patient has thoracic back pain; the leg length test shows one leg shorter. You also see a Type 1 SD with hypertonic muscle on one side creating a bowstring effect on the spine. What do you suspect?

Ans: Short leg + Type I hypertonic bowstring → secondary curve → functional

Why: A short leg and hypertonic muscle pulling like a bowstring are causes of a functional curve.

Explanation & sources

Explanation

Structural and idiopathic curves have no such correctable cause. Neuromuscular scoliosis comes with conditions such as CP or muscular dystrophy. Functional causes: hypertonicity, weakness, compensation, short leg.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 166-167
  • 2020 TA Review Exam 1 · TA review · slides 156-157
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
Week 5 · Written Review deck · slide 31
375Scoliosis screening & reversibility

You have a patient with a rib hump in the lower right thorax. When you stabilize their hips as you look at the hump and they side-bend to the left, the rib hump gets worse/more pronounced. Name that test and type of curve in their spine.

Ans: Hump changes with sidebending → flexible curve → functional; test is Adam's

Why: The test is Adam's forward bend with sidebending to check reversibility. The hump changes with sidebending, so the curve is still flexible, which the key reads as functional.

Heads up: Keyed A by the 2025 TA review. The stem only describes sidebending away from the hump (which exaggerates any curve), so it does not truly prove reversibility. The key treats any change with sidebending as a flexible (functional) curve.

Explanation & sources

Explanation

"Aaron's" test does not exist. A structural curve is fixed and should not change with sidebending. The cleaner check is sidebending toward the hump: a functional hump levels out.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 88-89
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 14
376top 215asked 8×2026Scoliosis screening & reversibility

A 35-year-old woman seen in clinic with a symptom of mid-thoracic pain, low back and right hip pain for the last 8 months. It started shortly after an MVA (motor vehicle accident), where she was rear ended. She was stopped at a red light, when a Yukon traveling 40 mph hit her car. She was wearing her seatbelt and the airbags did not deploy. PMHx: GERD PSHx: none Meds: Zantac 75 mg qd prn. Denies etoh, tobacco, ivdu. PE: BP 128/60, Neurological examination was within normal limits, ROM testing of the extremities was full both actively and passively; abdominal exam was normal; Osteopathic structural exam: T1FRrSr, T4FSrSr, Hypertonicity at left side T1-7, PSIS higher on left. Adams' test + rib hump on the right - improves with sidebending right and rotating left. Left medial malleolus superior but levels out after OMT. What is the most likely diagnosis in this patient?

Ans: Post-MVA onset + hump improves with sidebending + short leg levels after OMT → functional

Why: The curve started after trauma, the hump improves with sidebending and rotation (reversible = functional), and the apparent short leg levels out after OMT (not anatomic).

Explanation & sources

Explanation

An anatomic short leg would not level out after OMT. Congenital scoliosis is present from birth and is structural. A compression fracture would leave a fixed deformity that does not reverse with sidebending.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q10 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 83-84
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 26-29
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 67-69
  • 2024 IA 8 - Scoliosis · In-class poll · slides 30-31
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 104-105
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 103-104
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 212-213
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 29
Week 5 · IA5 Thoracic & Scoliosis · slide 14

5.9 · 12 questions · Questions 377–388

Cobb angle & treatment

No questions in this section match the current Show filter.

Learn firstWhat you need for 5.9

Cobb angle = severity. On a standing postural (AP) x-ray, draw tangent lines along the end plates of the most tilted vertebra above the apex and the most tilted vertebra below the apex, in the coronal plane; the angle between them (or their perpendiculars) is the Cobb angle.

Cobb angleSeverity / significance
5–15°Mild
20–45°Moderate; >30° should be treated; >5° progression is an indication to treat
>50°Severe; compromises respiratory function
>70° (75° in some sources)Also compromises cardiovascular function

So abnormal PFTs with a normal cardiac workup fits about 52° (lungs only), not 77°. A worsening curve: compare x-rays within about 5 months; >5° increase or a height change.

Treatment: COMLEX rule <25° monitor, 25–45° brace, >45° surgery. Surgery is most favorable for severe, progressive curves, e.g. one that progressed despite bracing and causes respiratory compromise. Other options: functional orthotics, bracing, exercise, physical therapy, and patient/family education. A mild, flexible curve → OMT, PT and education (not monthly x-rays, heel lift without a short leg, or surgery).

OMT is safe to perform before orthopedic evaluation. Its benefits: relaxes and stretches contracted muscles, corrects SD, increases mobility, normalizes tissues, and mobilizes/may slow progression of the curve. Muscle energy (direct) positions toward the barrier: for dextroscoliosis (Sl Rr) that is sidebend right, rotate left. A Beighton score of 2/5 is not hypermobility.

Lecture slide for this section (1)
IA5 slide 22: Cobb angle and severity
377top 215asked 2×Cobb angle & treatment

To test the severity of scoliosis on postural X-ray, you measure the angles of the most tilted vertebra above the apex and the most tilted vertebra below the apex. What is this called?

Ans: Angle between most-tilted vertebrae above and below apex → Cobb angle

Why: The Cobb angle measures severity on a postural x-ray using the most tilted end vertebrae above and below the apex.

Explanation & sources

Explanation

The other options are not standard measures. The apex vertebra defines location, not severity.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 177-178
  • 2020 TA Review Exam 1 · TA review · slides 167-168
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
378asked 4×2026Cobb angle & treatment

A 12-year-old female presents for routine follow-up for her chronic thoracic scoliosis. She has minimal symptoms but is cosmetically not pleased with her appearance. Structural examination reveals a small paravertebral hump on the right that improves with right sidebending. A plain film radiograph is obtained and the Cobb angle of 12 degrees is measured which is stable from prior imaging. This angle represents the intersection of

Ans: Cobb = lines along end plates of end vertebrae in coronal plane

Why: The Cobb angle is formed by tangent lines along the end plates of the top and bottom vertebrae of the curve, measured in the coronal plane (an AP film).

Explanation & sources

Explanation

A and B use lines parallel to flexed or extended positions, which is not the method. D and E use the sagittal plane, but scoliosis is a coronal-plane curve.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.7 Q4 (answer key p.10)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 51 (answer slide 52); textbook TB_Scoliosis.pdf p.7 Q4
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q4
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 178-179
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
379top 215Cobb angle & treatment

While reviewing your patient's x-ray you calculate a cobb angle of 13 degrees and classify the severity of the scoliosis as…

Ans: 13 degrees → 5-15 = mild

Why: Mild scoliosis is 5-15 degrees, so 13 degrees is mild.

Explanation & sources

Explanation

Moderate is 20-45 degrees; severe is more than 50 degrees. "Extreme" is not a category.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 208-209
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
380top 215asked 2×Cobb angle & treatment

A 14-year-old adolescent undergoes a school scoliosis screening. The physician orders a standing postural x-ray which shows a Cobb angle of 35°, the severity of this scoliosis is classified as

Ans: 35 degrees → 20-45 = moderate

Why: Moderate scoliosis is 20-45 degrees, so 35 degrees is moderate. Curves over 30 degrees should be treated.

Explanation & sources

Explanation

Mild is 5-15 degrees. Severe is more than 50 degrees, which compromises respiration. Another version used 30 degrees, also moderate.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 88-89
  • 2023 TA Review - Written Exam 1 · TA review · slides 223-224
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
381asked 2×Cobb angle & treatment

You measure a Cobb angle of 40 degrees. What classification of severity of scoliosis is this?

Ans: 40 degrees → 20-45 = moderate

Why: 40 degrees falls in the moderate range (20-45 degrees).

Explanation & sources

Explanation

Mild is 5-15 degrees. Severe is more than 50 degrees. Do not call it severe just because it is large; the cutoff is 50.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 179-180
  • 2020 TA Review Exam 1 · TA review · slides 169-170
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
382Cobb angle & treatment

You have a young patient that you have found to have a Cobb angle of 30º. The C curve is concave right. Classify this case of scoliosis.

Ans: 30 degrees = moderate; concave right → convex left → levoscoliosis

Why: 30 degrees is moderate (20-45). Concave right means convex left, and scoliosis is named for the convexity: levoscoliosis.

Explanation & sources

Explanation

A misgrades the curve and names it for the concavity. C names it for the concavity. D and E misgrade it as severe (more than 50).

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 85-86
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
Week 5 · Written Review deck · slide 29
383top 215asked 5×2026Cobb angle & treatment

A 15-year-old female presents for routine follow-up for idiopathic scoliosis. History is significant for exertional dyspnea with an associated decreased respiratory excursion. Structural examination is significant for obvious paravertebral humping on the right. A comprehensive evaluation for cardiovascular disease is unremarkable; however pulmonary function testing is abnormal. Which of the following is most associated with this patient's condition?

Ans: Respiratory but not cardiac compromise → >50 but <70-75 → 52 degrees

Why: Curves over 50 degrees compromise respiratory function. Cardiovascular compromise starts around 70 degrees (75 in some sources), so 52 degrees fits lungs only.

Explanation & sources

Explanation

B (77 degrees) would also compromise cardiovascular function, but her cardiac workup is normal. C, D and E are causes (neuromuscular, acquired, congenital), not markers of respiratory-only compromise.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.8 Q9 (answer key p.11)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 61 (answer slide 62); textbook TB_Scoliosis.pdf p.8 Q9
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q9
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 111-112
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slide 180
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
384top 215asked 8×2026Cobb angle & treatment

A 17 year old girl came to the urgent care clinic complaining of upper back pain for the past month. She has a continuous pain in her upper back, especially while studying. Stress worsens the pain. PMHX (Past Medical History): none, PSHX (Past Surgical History): none, Meds: None Denies alcohol use, tobacco, IV Drug use. With forward bending, rib hump was seen on the right. Palpation of spine revealed dextroscoliosis from T4-T10. There was hypertonicity of the erector spinae muscles on the left side. Thoracic spine x rays revealed a Cobb angle of 20 degrees. The Beighton non-dominant limb hypermobility screening test score was positive for 2 out of 5 parameters. Which of the following is a true statement regarding this patient?

Ans: IA5: safe to perform OMT before orthopedic evaluation

Why: The IA5 slide says it is safe to perform OMT before orthopedic evaluation. OMT aims to improve function, posture and mobility and may slow progression.

Explanation & sources

Explanation

A: a Beighton score of 2/5 does not indicate hypermobility, so HVLA is not contraindicated on that basis. B: muscle energy is direct; dextroscoliosis is sidebent left, rotated right, so ME positions toward the barrier (sidebend right, rotate left). C: OMT does not need to wait for an x-ray.

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q8 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 79-80
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 42-45
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 57-59
  • 2024 IA 8 - Scoliosis · In-class poll · slides 21-22
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 100-101
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 99-100
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 204-205
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 45
385Cobb angle & treatment

Which of the following is false regarding the treatment of scoliosis?

Ans: OMT is safe before orthopedic evaluation → "cannot" is false

Why: OMT can be performed before orthopedic evaluation, so C is the false statement.

Explanation & sources

Explanation

A, B and D are true: surgery is considered for severe curves (especially over 45 degrees); orthotics, bracing, exercise and PT are options; and patient and family education is part of care.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 90-91
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 45
386asked 2×Cobb angle & treatment

What is NOT an advantage of using OMT to treat scoliosis?

Ans: OMT for scoliosis increases mobility → "decreases mobility" is not a benefit

Why: OMT for scoliosis increases mobility. "Decreases mobility" is the one that is not an advantage.

Explanation & sources

Explanation

The listed benefits are from lecture: mobilizing and slowing progression, relaxing and stretching contracted muscles, correcting SD, increasing mobility and normalizing tissues.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 185-186
  • 2020 TA Review Exam 1 · TA review · slides 175-176
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 30
387asked 4×2026Cobb angle & treatment

A 12-year-old female presents for routine follow-up for her chronic thoracic scoliosis. She has minimal symptoms but is cosmetically not pleased with her appearance. Structural examination reveals a small paravertebral hump on the right that improves with right sidebending. Prognosis and management options are discussed. Surgery for scoliosis is most likely to have favorable results in which of the following cases?

Ans: Surgery → severe progressive curves with organ compromise → progressed despite bracing + respiratory compromise

Why: Surgery is for severe, progressive curves, especially those compromising respiration. A curve that progressed despite bracing and affects breathing fits best.

Explanation & sources

Explanation

A: progression alone is first managed with closer monitoring and bracing. C and D: 30-35 degrees is moderate and usually braced. E: 40 degrees in a skeletally mature patient is below the usual surgical range (over 45-50 degrees). Course COMLEX rule: under 25 monitor, 25-45 brace, over 45 surgery.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.7 Q5 (answer key p.10)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 53 (answer slide 54); textbook TB_Scoliosis.pdf p.7 Q5
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q5
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 188-189
Lecture slide (1)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
388asked 3×2026Cobb angle & treatment

A 12-year-old female presents for routine follow-up for her chronic thoracic scoliosis. She has minimal symptoms but is cosmetically not pleased with her appearance. Structural examination reveals a small paravertebral hump on the right that improves with right sidebending. Which of the following is the most appropriate management in this patient?

Ans: Small hump that improves with sidebending (mild, functional) → OMT, PT, education

Why: A small hump that improves with sidebending is mild and flexible. The right care is OMT, physical therapy and patient/family education.

Explanation & sources

Explanation

A: a heel lift is for a short leg, which is not described. C: monthly x-rays add radiation without changing care; mild curves are rechecked about every 6-12 months. D: surgery is for severe, progressive curves. E: orthotics or bracing are for moderate curves (about 25-45 degrees).

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.7 Q6 (answer key p.11)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 55 (answer slide 56); textbook TB_Scoliosis.pdf p.7 Q6
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q6
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 22
Week 5 · IA5 Thoracic & Scoliosis · slide 30

5.10 · 9 questions · Questions 389–397

Short leg

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Learn firstWhat you need for 5.10

Measuring: at the bedside, tape from the ASIS to the medial malleolus of each leg. The most accurate test is a standing postural x-ray of the iliac crests, sacral base and femoral heads. Pant-leg complaints, knee flexion and IT band tightness are clues, not measurements; the standing flexion test checks iliosacral motion and is not a leg-length test.

What a short leg does (example: right short leg):

  • Sacral base (anterior/deep), iliac crest, PSIS and greater trochanter are low on the short (right) side; the innominate on the short side rotates anterior.
  • The lumbar spine sidebends away from the short leg (left) and rotates toward it (right) → compensatory lumbar curve convex toward the short leg (convex right).
  • The pelvis side shifts toward the long leg (left). (Textbook: a right short leg pairs with a left-on-left forward sacral torsion, not right-on-right.)
  • The iliolumbar ligament on the side of lumbar convexity (short side) is the first structure to react and the point of maximal tenderness (refers to the groin); sacroiliac ligaments on the convex side may be tender (refer down the lateral leg).

Mirror it for a left short leg: left malleolus higher (supine) = left leg short → lumbar N Sr Rl (convex left), pelvic side shift right.

Most common cause of a short leg: hip replacement (textbook: anatomic; 2026 slide: functional).

Heel lift therapy: the goal is to level the sacral base (not the iliac crests or the measured leg length). Start small: 1/16 inch for a fragile, elderly or acutely painful patient, rechecked in about 2 weeks (1/8 inch for a sturdier patient). The full difference is rarely given at once unless the leg suddenly lost length (e.g. fracture). Balance the sacrum with OMT plus lift, then re-evaluate.

Lecture slides for this section (2)
Written Review slide 31: short leg syndrome
Written Review slide 32: clinical presentation of a short leg
389top 215asked 2×Short leg

How do you measure leg length discrepancy?

Ans: Clinical leg length → tape from ASIS to medial malleolus

Why: At the bedside, measure leg length from the ASIS to the medial malleolus of each leg.

Explanation & sources

Explanation

PSIS, lateral malleolus and greater trochanter are not the standard points. A standing postural x-ray is the most accurate test.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 168-169
  • 2020 TA Review Exam 1 · TA review · slides 158-159
Lecture slide (1)
Week 5 · Written Review deck · slide 31
390top 215asked 8×2026Short leg

What is the most accurate way to determine a leg length discrepancy?

Ans: Most accurate → standing postural x-ray (iliac crests, sacral base, femoral heads)

Why: The standing postural x-ray of the iliac crests, sacral base and femoral heads is the most accurate way to determine a leg length discrepancy.

Explanation & sources

Explanation

ASIS to medial malleolus is the bedside measurement but less accurate. Pant-leg complaints, knee flexion deformity and IT band tightness are clues, not measurements. The film is taken barefoot with L5 centered and both acetabula visible (about 2 mm error).

Asked in

  • 2026 Canvas Qs Week 5 Thoracic/Scoliosis · Canvas quiz · Q9 (answer list at end of doc)
  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 81-82
  • 2026 OMM1 IA5 Thoracic Spine, Scoliosis, Leg Length (Poll Everywhere) · In-class poll · slides 37-40
  • 2025 (PE) IA 5 - Thoracic Spine - Scoliosis · In-class poll · slides 62-64
  • 2024 IA 8 - Scoliosis · In-class poll · slides 26-27
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 102-103
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 101-102
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 208-209
Lecture slides (2)
Week 5 · IA5 Thoracic & Scoliosis · slide 40
Week 5 · Written Review deck · slide 31
391Short leg

A 30-year-old man presents with functional scoliosis. On physical exam, you note a pelvic tilt and a possible leg length discrepancy. Which of the following is the most accurate method to confirm a diagnosis of short leg syndrome?

Ans: Most accurate confirmation → standing postural x-ray

Why: The standing postural x-ray of the iliac crests, sacral base and femoral heads is the most accurate confirmation.

Explanation & sources

Explanation

Tape measurement (ASIS to medial malleolus) and palpating iliac crest heights are less accurate screening tools. The standing flexion test checks iliosacral motion, not leg length.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 99-100
Lecture slide (1)
Week 5 · Written Review deck · slide 31
392top 215asked 3×2026Short leg

A young adult presents with low back pain and measurements reveal an anatomic short leg on the right side. This is most associated with

Ans: Right short leg → sacral base low right → lumbar sidebends left, convex right

Why: With a right short leg the sacral base drops on the right, and the lumbar spine sidebends away (left) and rotates toward the short leg, giving a curve convex right.

Explanation & sources

Explanation

A: landmarks are low on the short (right) side. D: the pelvis shifts toward the long leg (left). E: the tender iliolumbar ligament is on the short-leg side, which is the side of lumbar convexity (right). C: the textbook pairs a right short leg with a left-on-left forward torsion, not right-on-right.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.6 Q3 (answer key p.10)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 49 (answer slide 50); textbook TB_Scoliosis.pdf p.6 Q3
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q3
Lecture slides (2)
Week 5 · Written Review deck · slide 31
Week 5 · Written Review deck · slide 32
393Short leg

While performing an osteopathic structural exam on your patient, you notice a lateral curve in the lumbar region. You examine further and discover the left medial malleolus is slightly higher than the right. What else would you expect to find on your physical examination?

Ans: Left malleolus higher → left leg short → lumbar sidebends right, rotates left

Why: The left medial malleolus is higher, so the left leg is short. The lumbar spine sidebends away from the short leg (right) and rotates toward it (left): L2-4NSrRl.

Explanation & sources

Explanation

A: the curve is convex left (levoscoliosis), not dextro. B is the pattern for a right short leg. C: the left leg is the short one.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 205-206
Lecture slides (2)
Week 5 · Written Review deck · slide 31
Week 5 · Written Review deck · slide 32
394top 215asked 4×2026Short leg

A 75-year-old male complains of persistent buttock pain despite right total hip arthroplasty. Standing palpatory examination reveals the iliac crest and greater trochanter to be inferior on the left. Postural radiographic studies reveal an unlevel sacral base that is inferior on the left. The most likely cause of this patient's leg length discrepancy is

Ans: Hip arthroplasty + new leg length difference → most common cause = hip replacement

Why: Hip replacement is the most common cause of a short leg, and this patient just had a total hip arthroplasty.

Heads up: The textbook calls hip replacement the most common cause of an anatomic short leg. The 2026 review slide lists it as the "most common cause of functional short leg." Either way the answer is E.

Explanation & sources

Explanation

A: dislocation would present acutely. B and C would make the left leg short only through a left hip process, and protrusio acetabuli (femoral head displaced medially) is uncommon. D: scoliosis is the result, not the cause. Treatment: balance the sacrum with OMT and heel lift, then re-evaluate.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.9 Q14 (answer key p.12)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 71 (answer slide 72); textbook TB_Scoliosis.pdf p.9 Q14
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q14
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 185-186
Lecture slide (1)
Week 5 · Written Review deck · slide 32
395top 215asked 3×2026Short leg

A 75-year-old male complains of persistent buttock pain despite right total hip arthroplasty. Standing palpatory examination reveals the iliac crest and greater trochanter to be inferior on the left. Postural radiographic studies reveal an unlevel sacral base that is inferior on the left. The structural exam finding most associated with this presentation is

Ans: Left short leg → pelvis shifts toward long leg → side shift right

Why: The left leg is short, so the pelvis side shifts toward the long leg (right).

Explanation & sources

Explanation

A: the lumbar curve is convex toward the short leg (left). D: the innominate on the short side rotates anterior, not posterior. E: the anterior (deep) sacral base is on the short (left) side. B: pelvic rotation is not the defining finding.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.9 Q15 (answer key p.12)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 73 (answer slide 74); textbook TB_Scoliosis.pdf p.9 Q15
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q15
Lecture slide (1)
Week 5 · Written Review deck · slide 32
396top 215asked 3×2026Short leg

A 65-year-old female presents with acute low back pain. Observation reveals she has a frail body habitus with a wide-based, antalgic gait. Physical examination reveals a leg length discrepancy of 5/8th inches. A postural radiographic series is obtained and reveals the right femoral head is 1/2 inch cephalad when compared to the left. The most valid objective for heel lift therapy is to

Ans: Heel lift goal → level the sacral base (functional balance)

Why: The goal of lift therapy is to level the sacral base. A level base lets the spine above it rebalance.

Explanation & sources

Explanation

Iliac crest and leg length numbers can differ from the sacral base and are not the target. Lumbar and thoracic curves improve secondarily once the base is level.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.9 Q13 (answer key p.12)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 69 (answer slide 70); textbook TB_Scoliosis.pdf p.9 Q13
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q13
Lecture slide (1)
Week 5 · Written Review deck · slide 31
397top 215asked 3×2026Short leg

A 65-year-old female presents with acute low back pain. Observation reveals she has a frail body habitus with a wide-based, antalgic gait. Physical examination reveals a leg length discrepancy of 5/8th inches. A postural radiographic series is obtained and reveals the right femoral head is 1/2 inch cephalad when compared to the left. The most appropriate initial management is

Ans: Frail, elderly, acute pain → start small → 1/16 inch heel lift, recheck 2 weeks

Why: In a frail, elderly patient with acute pain, start with a small 1/16-inch heel lift and recheck in 2 weeks.

Explanation & sources

Explanation

The full measured difference is rarely given at once unless the leg suddenly lost length (for example, after a fracture). A 1/8-inch start suits a patient who is not fragile. Increasing without rechecking (D) or waiting 8 weeks (B) is too aggressive or too slow.

Asked in

  • 2026 Textbook - Scoliosis & Short Leg Syndrome (Ch. 5 Review Questions) · Textbook chapter questions · TB_Scoliosis.pdf p.9 Q12 (answer key p.12)
  • 2026 Textbook Q&A Compilation - Scoliosis & Short Leg Syndrome · Textbook chapter questions · slide 67 (answer slide 68); textbook TB_Scoliosis.pdf p.9 Q12
  • Scoliosis & Short Leg Syndrome (OMM review book ch. 5 review questions, ©2020) · Textbook chapter questions · Ch 5 Q12
Lecture slide (1)
Week 5 · Written Review deck · slide 31

Week 6 · 67 questions

Treatment Modalities: ME, CS, HVLA

Questions 398–464

10 sections in this week
  1. 6.1Direct vs indirect
  2. 6.2Technique types
  3. 6.3ME basics
  4. 6.4ME physiology
  5. 6.5ME setup
  6. 6.6Counterstrain basics
  7. 6.7Counterstrain treatment
  8. 6.8HVLA
  9. 6.9Contraindications
  10. 6.10Choosing a technique

6.1 · 5 questions · Questions 398–402

Direct vs indirect

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Every technique is classified by where you position the patient at the start:

DirectIndirect
Start positionToward / into the restrictive barrierPosition of ease, away from the barrier
Relation to the diagnosisOpposite the diagnosis (flip every letter)Equal to the diagnosis (the SD itself)
Effect on a hypertonic muscleStretches (lengthens) itShortens it
ExamplesMuscle energy, HVLACounterstrain

Quick rule: a position that reads the same as the diagnosis is indirect; the exact opposite is direct. For T4 F Rr Sr: positioning into E Rl Sl = direct; positioning into F Rr Sr = indirect.

Direct/indirect is a separate axis from active/passive. “The patient stays still” (passive) or “the patient moves” (active) does not tell you direct vs indirect. Myofascial release can be done either way.

Lecture slide for this section (1)
IA6 slide 23: indirect vs direct
398Direct vs indirect

A direct technique is best described as:

Ans: Direct → engage the restrictive barrier → patient placed toward the barrier

Why: A direct technique starts by positioning the patient toward the restrictive barrier, which is opposite the somatic dysfunction.

Explanation & sources

Explanation

A describes a passive technique and D an active one; active/passive is a separate axis from direct/indirect. C is the definition of an indirect technique. Muscle energy and HVLA are the course's direct techniques.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 170-171
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 116-117
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
399top 215asked 7×2026Direct vs indirect

When considering osteopathic manipulative treatment, which of the following statements accurately describes an indirect technique?

Ans: Indirect → position of ease → ease = the diagnosis → position equals the SD

Why: An indirect technique places the patient in the position of ease, which equals the diagnosis (the somatic dysfunction), at the start of the modality.

Explanation & sources

Explanation

A, B and C all describe a direct technique: into the barrier, opposite the diagnosis, stretching the hypertonic muscle. D describes an active technique, which is a separate axis. Counterstrain is the course's example of an indirect, passive technique.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 89-90
  • 2026 OMM1 IA6 ME, CS, HVLA (Poll Everywhere) · In-class poll · slides 25-26
  • 2025 (PE) IA 6 - ME, CS, HVLA · In-class poll · slides 25-27
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 82-83
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 82-83
  • 2023 TA Review - Written Exam 1 · TA review · slides 131-132
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 175-176
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
400asked 2×Direct vs indirect

What is the difference between a direct technique and an indirect technique?

Ans: Indirect → away from barrier → into ease → hypertonic muscle shortened

Why: An indirect technique moves away from the barrier into the position of ease, which shortens the hypertonic muscle. A direct technique goes toward the barrier and stretches it.

Explanation & sources

Explanation

A and D swap the direction for each technique. C pairs the right direction for direct with the wrong muscle effect: moving into the barrier lengthens (stretches) a hypertonic muscle. Counterstrain is the classic shortening (indirect) technique.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 91-92
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 65-66
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
401top 215Direct vs indirect

A first-year medical student presents with upper back pain after long hours of slouching. Exam reveals T4 FRrSr. For the first treatment, you position the patient into extension, left rotation, left sidebending. For the second treatment, you position the patient into flexion, right rotation, right sidebending. Which of the following best describes the techniques used?

Ans: FRrSr = freedom → ERlSl is the barrier (direct) → FRrSr is the ease (indirect)

Why: The diagnosis names the freedom. Positioning into the opposite (ERlSl) engages the barrier, so the first is direct. Positioning into FRrSr matches the diagnosis, so the second is indirect.

Explanation & sources

Explanation

A and B ignore that the two positions are mirror images. C reverses them. Quick rule: a position that reads the same as the diagnosis is indirect; the exact opposite is direct.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 109-110
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
402Direct vs indirect

What are direct vs indirect techniques?

AnswerIndirect: patient placed in the position of ease (equal to the diagnosis) at the start, e.g., counterstrain. Direct: patient positioned toward the restrictive barrier (opposite the diagnosis) at the start, e.g., muscle energy and HVLA.

Ans: Ease = diagnosis → indirect; barrier = opposite of diagnosis → direct

Why: Indirect means starting in the position of ease, which equals the somatic dysfunction. Direct means starting at the restrictive barrier, opposite the diagnosis.

Explanation & sources

Explanation

Counterstrain is indirect; muscle energy and HVLA are direct. Myofascial release can be done either way. Direct/indirect describes where you position; active/passive describes whether the patient contracts.

Asked in

  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'What are direct vs indirect techniques'
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23

6.2 · 6 questions · Questions 403–408

Technique types

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Learn firstWhat you need for 6.2

Classify each technique on two independent axes: direct vs indirect (toward the barrier vs into ease) and active vs passive (does the patient contract or not).

TechniqueDirect / indirectActive / passive
Muscle energyDirectActive (patient contracts against the physician)
HVLADirectPassive (physician thrusts)
CounterstrainIndirectPassive (“fold and hold”)
Facilitated positional releaseIndirectPassive
Myofascial releaseEitherEither

Of the three Week 6 techniques, only muscle energy is active. None of them is active and indirect. Watch for “only” in options: “myofascial release = direct with passive forces only” is wrong because MFR can be done several ways.

Lecture slide for this section (1)
Study note: ME vs CS vs HVLA at a glance
403asked 3×Technique types

Match each item to one description: Indirect technique; Counterstrain; Muscle energy; HVLA; Direct technique. Descriptions: A. Active and direct. B. Passive and direct. C. Passive and indirect. D. Positioned toward the barrier. E. Patient is placed in a position of ease (which equals the diagnosis, the somatic dysfunction).

AnswerIndirect technique–E; Counterstrain–C; Muscle energy–A; HVLA–B; Direct technique–D.

Ans: ME = active + direct; HVLA = passive + direct; CS = passive + indirect

Why: Muscle energy is active and direct, HVLA is passive and direct, counterstrain is passive and indirect. Direct means toward the barrier; indirect means the position of ease, equal to the diagnosis.

Explanation & sources

Explanation

The 2023 version used only three items (HVLA, muscle energy, counterstrain) matched to direct-active, direct-passive and indirect. The only active technique of the three is muscle energy, because the patient contracts against the physician.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 93-94
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 83-84
  • 2023 TA Review - Written Exam 1 · TA review · slides 147-148
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
404top 215asked 4×Technique types

Counterstrain is what type of technique?

Ans: CS → shorten muscle into ease (indirect) → physician does all the moving (passive)

Why: Counterstrain places the patient into a position of ease that shortens the hypertonic muscle (indirect), and the physician moves the patient without any patient effort (passive). Think "fold and hold."

Explanation & sources

Explanation

Active, direct is muscle energy. Passive, direct is HVLA. No technique in this lecture is active and indirect. The patient must stay passive, even while being returned to neutral, or the reflex can restart.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 131-132
  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 48-49
  • 2023 TA Review - Written Exam 1 · TA review · slides 113-114
  • 2022 TA Review - Exam 1 · TA review · slides 47-48
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
405top 215Technique types

What type of technique is HVLA?

Ans: HVLA → thrust through the barrier (direct) → no patient effort (passive)

Why: HVLA engages the restrictive barrier and the physician delivers the thrust, so it is direct and passive.

Explanation & sources

Explanation

Active, direct is muscle energy. Passive, indirect is counterstrain. Active, indirect fits none of the three Week 6 techniques. The Kirksville Crunch (supine) and Texas Twist (prone) are thoracic HVLA examples.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 136-137
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
406Technique types

Which of the following treatments is correctly matched?

Ans: CS = indirect + passive → only B matches

Why: Counterstrain is an indirect, passive technique: the physician positions the patient into ease with no patient effort.

Explanation & sources

Explanation

A fails because of "only": myofascial release can be direct or indirect and active or passive. C is wrong because muscle energy is direct and active. E is wrong because HVLA is direct. Facilitated positional release is indirect but passive, not active.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 119-120
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
407top 215Technique types

A patient has T4 FRrSr. You treat with a muscle energy technique, followed by a counterstrain technique. Which of the following best describes the patient's participation in these techniques, respectively?

Ans: ME → patient contracts (active); CS → physician positions (passive)

Why: In muscle energy the patient contracts against the physician's counterforce (active). In counterstrain the physician positions a relaxed patient (passive).

Explanation & sources

Explanation

A reverses the two. C and D treat them as the same. Summary: ME direct/active, CS indirect/passive, HVLA direct/passive, myofascial release can be either.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 111-112
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
408Technique types

What are active vs passive techniques?

AnswerActive: the patient contracts or moves on request (muscle energy, active myofascial release). Passive: the patient stays relaxed while the physician does the work (counterstrain, indirect; HVLA, direct).

Ans: Patient effort → active (ME); no patient effort → passive (CS, HVLA)

Why: Active techniques use the patient's own muscle effort, as in muscle energy. Passive techniques keep the patient relaxed, as in counterstrain and HVLA.

Explanation & sources

Explanation

Active/passive is independent of direct/indirect: HVLA is passive but direct, counterstrain is passive and indirect. Myofascial release can be done actively or passively.

Asked in

  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'What are Active vs. Passive Techniques'
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23

6.3 · 8 questions · Questions 409–416

ME basics

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Muscle energy (ME) was developed by Fred Mitchell Sr., DO (first published 1958). It uses physician-guided, voluntary muscle contraction to treat a specific mechanical diagnosis, restoring normal muscle tone and/or joint mechanics. It is direct and active, engages the restrictive barrier (never the anatomic barrier), and its main mechanism is the Golgi tendon organ (post-isometric relaxation). The muscle spindle with an alpha/gamma mismatch is the counterstrain story (counterstrain = Lawrence Jones, indirect, passive), not ME.

The patient's effort is required in every version of ME (90-second holds = counterstrain; thrust = HVLA). After each effort you take up the slack to the new barrier, not the freedom.

The 9 physiologic principles of ME: post-isometric relaxation, reciprocal inhibition, joint mobilization using muscle force, respiratory assistance, oculocephalic reflex, crossed extensor reflex, isokinetic strengthening, isolytic lengthening, and using muscle force to move one region to move another. (“It is an indirect technique” is never a principle.)

Indications: clinically relevant somatic dysfunction; mobilizing joints (“misaligned bones”); strengthening weak muscles; stretching tight muscles and fascia; improving circulation (contraction pumps lymph and venous blood); relaxing hypertonic muscles; preparing a joint for HVLA. ME does have contraindications (e.g. no consent, a patient who cannot follow commands).

Lecture slide for this section (1)
IA6 slide 7: muscle energy mechanism
409top 215asked 6×2026ME basics

Which of the following statements is correct when describing muscle energy?

Ans: ME → Fred Mitchell → direct, active → Golgi tendon organ

Why: Muscle energy was developed by Fred Mitchell Sr., DO. It is a direct, active technique that works through the Golgi tendon organ (post-isometric relaxation).

Explanation & sources

Explanation

Lawrence Jones developed counterstrain, which is indirect, passive and acts on the muscle spindle (option C describes counterstrain). E has the right person but the counterstrain mechanism. Mitchell first published ME in 1958; his son published the ME manual in 1979.

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Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 13
Week 6 · IA6 ME, CS, HVLA · slide 7
410ME basics

Fill in the blanks: "____ is a direct and active osteopathic treatment modality developed by ____ which requires the physician to engage a restrictive barrier, while having the patient move into their freedom. It uses gentle isometric contractions to cause muscle relaxation through autogenic or reciprocal inhibition and lengthening of a hypertonic muscle (or group of muscles)."

Ans: Direct + active + isometric contraction into freedom → muscle energy → Fred Mitchell

Why: Only muscle energy is direct and active with isometric contractions, and it was developed by Fred Mitchell, DO.

Explanation & sources

Explanation

Counterstrain (Jones) is indirect and passive. Still's technique and cranial osteopathy (Sutherland) do not use patient isometric contraction against a barrier. Autogenic inhibition is the Golgi tendon organ effect behind post-isometric relaxation.

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  • 2020 TA Review Exam 1 · TA review · slides 13-14
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 7
411asked 3×2026ME basics

Which of the following is a true statement regarding muscle energy technique?

Ans: ME → patient contracts against barrier → active, direct

Why: Muscle energy is the prototypical active, direct technique.

Explanation & sources

Explanation

A is wrong because ME relies on the Golgi tendon organ (post-isometric relaxation); the spindle is the counterstrain mechanism. C is wrong because after each effort you take up the slack to the new barrier, not the freedom. D is wrong: ME has absolute contraindications (e.g., no consent, patient unable to follow commands) and relative ones.

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  • 2026 Textbook Q&A Compilation - Physiology of Treatment Modalities: ME/CS/HVLA · Practice questions · slide 161 (answer slide 162)
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Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 7
412ME basics

Muscle energy is an example of a(n) ____ technique; it engages the ____ barrier.

Ans: ME → direct → engages the SD's restrictive barrier (never the anatomic)

Why: Muscle energy is direct and engages the restrictive barrier, the early abnormal stop caused by the somatic dysfunction.

Explanation & sources

Explanation

The anatomic barrier is the limit of passive motion; forcing past it tears tissue, so no technique targets it. Indirect techniques move away from the restrictive barrier. ME starts at the "feather edge," the first point where tension is palpable.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 73-74
Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 7
Week 3 · Written Review deck · slide 21
413ME basics

All of the following are principles of muscle energy EXCEPT:

Ans: ME is direct → 'indirect' is the exception

Why: Muscle energy is a direct technique, so "indirect" is the false statement.

Explanation & sources

Explanation

Isokinetic strengthening, reciprocal inhibition and post-isometric relaxation are all among the 9 physiologic principles of ME. The others: joint mobilization using muscle force, respiratory assistance, oculocephalic reflex, crossed extensor reflex, isolytic lengthening, and using muscle force to move another region.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 127-128
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 7
414asked 2×ME basics

Which of the following is UNTRUE of muscle energy technique?

Ans: Spindle + alpha/gamma mismatch → counterstrain theory, not ME

Why: The muscle spindle with an alpha/gamma mismatch is the proposed mechanism of counterstrain. Muscle energy works through the Golgi tendon organ.

Explanation & sources

Explanation

A, B and C are all true of ME: Mitchell, active and direct, and post-isometric relaxation via the GTO. Counterstrain shortens the hypertonic muscle so the spindle stops over-reporting and gamma gain resets.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 107-108
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Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 7
Week 6 · IA6 ME, CS, HVLA · slide 17
415asked 2×ME basics

Which of the following is a necessary component for a successful muscle energy treatment?

Ans: ME = active → patient must contract → patient assistance is required

Why: Muscle energy is active: every version needs the patient to contract on request against the physician's counterforce, so patient assistance is required.

Explanation & sources

Explanation

A is indirect positioning; ME positions into the barrier. C (90 s hold) is counterstrain. D is HVLA. Reciprocal inhibition and post-isometric relaxation are each only one of several ME principles, so neither is required in every treatment.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 113-114
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 120-121
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 7
416asked 2×ME basics

What is an indication for muscle energy?

Ans: ME mobilizes joints, stretches tight tissue, improves circulation, relaxes muscles → all

Why: Lecture 6 lists ME indications as clinically relevant somatic dysfunction, mobilizing joints, strengthening weak muscles, stretching tight muscles and fascia, and improving circulation; muscle relaxation is its main goal.

Explanation & sources

Explanation

Each option on its own is a valid use, so "all of the above" is best. Muscle contraction also pumps lymph and venous blood, which is why ME helps edema and congestion. ME can also prepare a joint for HVLA.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 147-148
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6.4 · 7 questions · Questions 417–423

ME physiology

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ME principleWhat the patient doesMechanism / use
Post-isometric relaxationThe tight muscle contracts isometrically toward its freedom, 3–5 sTendon tension → GTO inhibits alpha motor neurons of the same muscle (negative feedback); a refractory window follows, so slack is taken up without stretch-reflex opposition. Gentle 10–20 lb; e.g. hamstring spasm
Reciprocal inhibitionGentle contraction of the muscle opposite the tight one. Textbook wording: “contraction of the agonist relaxes the antagonist”Relaxes the tight muscle (e.g. contract hamstrings to relax a left quadriceps in acute spasm); force in ounces
Oculocephalic reflexLooks toward the freedomCervical/trunk muscles contract reflexly to follow the eyes; exceptionally gentle (e.g. hypertonic SCM). Avoid after recent eye surgery/trauma
Respiratory assistanceVoluntary, exaggerated breathingBreath is the corrective force against a physician fulcrum; used for rib dysfunctions
Crossed extensor reflexContracts the flexor of the opposite limbContralateral flexor relaxes and extensor contracts; for a limb too injured to treat (fracture, burn, severe strain); force in ounces
Isokinetic strengtheningSlow concentric contractionStrengthens a weak muscle
Isolytic lengtheningContracts while the physician overpowers itStretches chronic fibrotic, shortened muscle (not acute spasm)

Push direction: the patient is placed into the barrier but pushes toward the freedom. That raises tendon tension and fires the GTO. Patients cannot selectively contract single intercostals; ribs are treated with respiratory assistance.

Lecture slide for this section (1)
IA6 slide 8: post-isometric relaxation
417ME physiology

You are performing muscle energy and wonder about the physiology behind the technique. You conclude that you are:

Ans: Patient pushes toward freedom → tendon tension rises → GTO reflex → relaxation

Why: In muscle energy the patient pushes toward their freedom against your counterforce. That raises tendon tension, which fires the Golgi tendon organ and relaxes the muscle.

Explanation & sources

Explanation

C has the right reflex but the wrong push direction: the patient is placed into the barrier but pushes toward the freedom. A and D describe the spindle, which is the counterstrain story. E is a joke option.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slide 135
Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 7
Week 6 · IA6 ME, CS, HVLA · slide 8
418top 215ME physiology

After positioning the patient into the restrictive barrier, you instruct them to gently push against your resistance for 3-5 seconds, then relax. You then reposition them further into the barrier. What is the relaxation called and what is the physiologic basis for why the muscles lengthen after contraction?

Ans: Isometric push → tendon tension → GTO inhibits same muscle → post-isometric relaxation

Why: This is post-isometric relaxation. The contraction raises tendon tension, and the Golgi tendon organs inhibit the alpha motor neurons of the same muscle (negative feedback), so you can take up the slack.

Explanation & sources

Explanation

B names reciprocal inhibition, which relaxes a muscle by contracting its antagonist, and pairs it with a wrong mechanism. C is used for injured limbs. D, the stretch reflex, causes contraction and is what ME avoids. E has the right name but the wrong mechanism; raising gamma gain increases tone.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 121-122
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 8
419asked 2×ME physiology

Which of the following uses the Golgi tendon proprioceptors?

Ans: GTO inhibits the contracting muscle → basis of post-isometric relaxation

Why: In post-isometric relaxation, the Golgi tendon proprioceptors inhibit the active contraction after an isometric effort, leaving a refractory window for passive stretch.

Explanation & sources

Explanation

The crossed extensor reflex uses learned crossed locomotion patterns. Isokinetic strengthening uses a slow concentric contraction to strengthen a weak muscle. Isolytic lengthening stretches a fibrotic muscle while it contracts (physician force > patient force). PIR uses gentle 10-20 lb pressure; the lecture example is hamstring spasm.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 140-141
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Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 8
420top 215ME physiology

Samantha has an acute left quadriceps spasm after a weight training session. To relax the left quadriceps, Dr. Mitchell tells her to apply a gentle contraction with her left hamstrings. Which muscle energy principle is used here?

Ans: Contract hamstrings (agonist) → reflex relaxation of quadriceps (antagonist) → reciprocal inhibition

Why: Reciprocal inhibition: a gentle contraction of the agonist (hamstrings) reflexly relaxes its antagonist (quadriceps). It is used to lengthen a muscle in cramp or acute spasm.

Explanation & sources

Explanation

Post-isometric relaxation would have the spasming quadriceps itself contract. The oculocephalic reflex uses eye movements. Isolytic lengthening uses a strong contraction overpowered by the physician for chronic fibrosis, not acute spasm. Reciprocal inhibition force is very gentle (ounces, not pounds).

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  • 2023 TA Review - Written Exam 1 · TA review · slides 141-142
Lecture slide (1)
Week 4 · Written Review deck · slide 25
421asked 2×ME physiology

A 30-year-old male has a hypertonic sternocleidomastoid. You set him up at his barrier and tell him to look toward his freedom. Which physiologic principle of muscle energy is involved?

Ans: Eye motion drives neck muscle contraction → oculocephalic (oculocephalogyric) reflex

Why: The oculocephalic reflex uses voluntary eye motion: the cervical and trunk muscles contract reflexly to follow the eyes. The force is exceptionally gentle.

Explanation & sources

Explanation

Reciprocal inhibition would mean contracting the opposing muscle directly; the lecture example is torticollis from acute SCM spasm, which is why D tempts. Here the cue is the eyes. This technique is contraindicated after recent eye surgery or eye trauma.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 138-139
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422top 215asked 5×ME physiology

Which of the following mechanisms can be utilized when treating a patient with rib somatic dysfunctions?

Ans: Ribs move with breathing → use the patient's breath → respiratory assistance

Why: Respiratory assistance uses the patient's voluntary, exaggerated breathing as the corrective force, with the physician holding a fulcrum. It is the ME principle for rib dysfunctions such as an inhalation rib.

Explanation & sources

Explanation

Eye motion (oculocephalic reflex) targets cervical and trunk muscles. Patients cannot selectively contract single intercostals. The crossed extensor reflex is for injured extremities. Isolytic contraction is for fibrotic, shortened muscle. The 2020 version asked about a rib 4 inhalation dysfunction, with the same answer.

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423top 215ME physiology

A patient with a broken right femur is being treated with muscle energy using the crossed extensor reflex. Which of the following correctly describes the crossed extensor reflex?

Ans: Injured limb can't be treated → work the opposite limb → crossed locomotion reflex

Why: The crossed extensor reflex uses learned locomotion patterns: voluntary flexor contraction on one side relaxes the contralateral flexor and contracts the contralateral extensor. It lets you treat a limb that is too injured or inaccessible (fracture, burn).

Explanation & sources

Explanation

A is reciprocal inhibition. B is isokinetic strengthening. D is the oculocephalic reflex. Crossed extensor force is very gentle (ounces, not pounds); the lecture example is a severe acute hamstring strain.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 143-144

6.5 · 9 questions · Questions 424–432

ME setup

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Muscle energy sequence:

  1. Diagnose the specific SD first (ME treats a specific mechanical diagnosis).
  2. Position into the restrictive barrier at the “feather edge”, in all three planes = the exact opposite of the diagnosis.
  3. Patient pushes toward the freedom (= the diagnosis) for 3–5 s; physician gives an equal and opposite counterforce (isometric; greater force = isolytic, lesser = isotonic).
  4. Both relax; pause a few seconds; then take up the slack to the new barrier.
  5. Repeat 3–5 times, then a final passive stretch.
  6. Reassess at the end (forgetting to re-evaluate and not letting the patient rest between efforts are common errors).
DiagnosisPosition (barrier)Patient pushes toward
T3–T7 N Sl RrNeutral, Sr RlSidebend left, rotate right
T4–T10 N Sl RrMonitor the apex (T7); N Sr RlSl Rr
T10 F Rr SrSeated, monitor T10 TP; extend, rotate left, sidebend leftRr Sr (e.g. rotate right)

A Type I (neutral) group needs no flexion or extension in the setup; a Type II needs F or E to lock the segment. The trunk and shoulders (not the neck alone) localize force to the segment.

Hypertonic biceps treated by contracting the triceps against resistance = direct (moves toward extension, the barrier) and active = muscle energy using reciprocal inhibition.

424top 215ME setup

When performing muscle energy, you place the patient in what direction in relation to their somatic dysfunction?

Ans: ME is direct → position into barrier → patient pushes back toward freedom

Why: Muscle energy is direct, so you position at the barrier, then the patient pushes toward the freedom against your equal counterforce (isometric).

Explanation & sources

Explanation

Pushing toward the barrier would move the patient through it actively, which is not ME. Starting in the freedom is indirect positioning. After 3-5 s the patient relaxes, you take up the slack to the new barrier, and repeat 3-5 times.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 60-61
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
425top 215asked 2×ME setup

Which is true regarding the localization of forces used in muscle energy technique?

Ans: Contract 3-5 s → both relax → pause → take up slack to the new barrier

Why: After each contraction both relax, the physician pauses for neuromuscular adaptation, then takes up the slack and re-engages the new restrictive barrier.

Explanation & sources

Explanation

A is wrong: the barrier is engaged at the feather edge in all three planes. B describes isolytic lengthening and C an isotonic (concentric) contraction; standard ME uses an equal and opposite counterforce (isometric). A common error is not letting the patient rest between contractions.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 109-110
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Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 8
426ME setup

Which of the following is true regarding the seated thoracic muscle energy treatment shown?

Ans: ME treats a specific mechanical diagnosis → diagnose first

Why: Muscle energy treats a specific mechanical diagnosis, so an accurate diagnosis must come first. It is step 1 of the ME sequence.

Explanation & sources

Explanation

B is wrong: ME engages barriers in three planes, not freedoms. C is wrong because the contraction is isometric, not isokinetic. D is wrong: always recheck the original somatic dysfunction; forgetting to re-evaluate is a listed common error.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 29-30
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 7
427ME setup

During the thoracic muscle energy technique shown, which of the following is true?

Ans: Into barrier → patient pushes toward freedom → physician resists equally (isometric)

Why: In ME the patient pushes toward the freedom while the physician gives an equal counterforce, so the contraction is isometric.

Explanation & sources

Explanation

A is wrong: the trunk and shoulders are used to localize to the segment, not the neck alone. B reverses the push direction. C is wrong because reassessment comes after the final passive stretch, at the end.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 31-32
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 8
428asked 3×ME setup

A 30-year-old male has a hypertonic right biceps. You treat him by having him engage his right triceps against your resistance. How can this technique be described?

Ans: Hypertonic biceps → elbow stuck in flexion → triceps extends toward barrier (direct) → patient contracts (active)

Why: A hypertonic biceps holds the elbow toward flexion, so extension is the barrier. Working with the triceps engages that barrier (direct), and the patient does the contracting (active). This is muscle energy.

Explanation & sources

Explanation

Indirect would mean positioning into flexion (the ease). Passive would mean the patient does no work. Contracting the opposing muscle to relax the hypertonic one is the reciprocal inhibition principle.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 133-134
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Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
429ME setup

You diagnose T3-T7 NSlRr and decide to treat with muscle energy. How do you position the patient initially?

Ans: ME = direct → reverse the diagnosis → NSlRr becomes NSrRl

Why: Muscle energy is direct, so you position into the barrier, the exact opposite of the diagnosis: neutral, sidebent right, rotated left.

Explanation & sources

Explanation

E repeats the diagnosis (that is indirect positioning). C keeps Type II coupling, which does not match a Type I group. A and B add flexion or extension, which a neutral (Type I) dysfunction does not need.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 117-118
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Week 6 · IA6 ME, CS, HVLA · slide 23
430ME setup

Continuing the same case (SD is T3-T7 NSlRr), you have positioned the patient into the barrier (NSrRl). In which direction should the patient push against your resistance?

Ans: Positioned in barrier → push toward freedom → freedom = SlRr

Why: In ME the patient is placed into the barrier but pushes toward the freedom, which is the diagnosis: rotate right, sidebend left.

Explanation & sources

Explanation

D is the barrier direction, where the patient is already positioned. B and C mix freedom and barrier. The contraction is isometric: you match the patient's force so nothing moves.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 119-120
431asked 2×ME setup

You diagnose T4-T10 NSlRr. How do you set up the patient for muscle energy?

Ans: Type I group → localize to apex T7 → reverse the diagnosis → NSrRl

Why: For a Type I group curve, monitor at the apex (T7) and position into the barrier, which reverses the diagnosis: neutral, sidebent right, rotated left.

Explanation & sources

Explanation

A and E monitor at the ends of the curve and add extension. B and C use Type II-style flexion or extension with same-side coupling. Type I (neutral) dysfunctions are maintained by long restrictor (polyarticular) muscles.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 136-137
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432ME setup

A patient has T10 FRrSr. What are the steps for his muscle energy treatment setup?

Ans: FRrSr freedom → barrier = ERlSl → seated, monitor T10, extend/rotate left/sidebend left

Why: Muscle energy goes into the barrier, the opposite of FRrSr: extension, left rotation, left sidebending, while monitoring T10. The patient then pushes toward the freedom (e.g., rotating right).

Explanation & sources

Explanation

A is a Kirksville Crunch, which is HVLA. B positions into the freedom (indirect). D mixes the planes and leaves out extension, so it does not lock the Type II segment.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 265-266

6.6 · 6 questions · Questions 433–438

Counterstrain basics

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Counterstrain (CS) was developed by Lawrence H. Jones, DO, after a chance discovery in 1955 treating a patient with psoasitis (not Stephen Jones). It is indirect and passive: the patient is placed in a position of ease that shortens the hypertonic muscle (“fold and hold”). The position of comfort usually matches the position of the original injury.

Mechanism: after a strain, the spindles of a hypertonic muscle “report strain where there is none” (gamma gain set too high). Shortening the muscle reduces spindle afferent input, so the spindle is reset and gamma motor neuron activity (gamma gain) drops; the tender point softens. CS does not stretch the spindle, does not engage the barrier, and does not use reciprocal inhibition (that needs a contraction).

Counterstrain tender pointTrigger point
PainLocalized; does not radiateRadiates away from the point
FeelSmall, discrete, tense, edematous, often fibrotic; about the size of a dime—
WhereMuscle, fascia, tendons, ligaments; consistent locations from patient to patient—
TendernessTender to pressure that would not normally hurt (enough to blanch your fingernail)—
Lecture slide for this section (1)
IA6 slide 17: counterstrain mechanism
433top 215asked 4×Counterstrain basics

Who developed counterstrain?

Ans: Counterstrain → Lawrence H. Jones, DO (1955 discovery)

Why: Lawrence H. Jones, DO developed counterstrain after a chance discovery in 1955 while treating a patient with psoasitis.

Explanation & sources

Explanation

Fred Mitchell developed muscle energy. William Sutherland founded cranial osteopathy. A.T. Still founded osteopathy. Stephen Jones is a distractor that plays on the surname. Jones first mapped posterior tender points, then added anterior points.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 127-128
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 137-138
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 151-152
  • 2020 TA Review Exam 1 · TA review · slides 141-142
Lecture slide (1)
Study note
434Counterstrain basics

Counterstrain is an example of a(n) ____ technique; it places the patient ____.

Ans: CS → position of ease (away from barrier) → indirect

Why: Counterstrain is indirect: it places the patient in a position of ease, away from the restrictive barrier, which shortens the hypertonic tissue.

Explanation & sources

Explanation

A and B are internally contradictory pairs. D describes direct techniques like muscle energy and HVLA. The position of comfort usually matches the position of the original injury.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 75-76
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
435top 215asked 3×2026Counterstrain basics

Counterstrain positioning:

Ans: CS = fold and hold → shortens hypertonic muscle → spindle quiets

Why: Counterstrain positions the patient so the hypertonic muscle is shortened. That quiets its over-reporting spindle and lets gamma gain reset.

Explanation & sources

Explanation

A is direct technique (ME, HVLA). B is the opposite: CS shortens the spindle. D is a muscle energy principle that needs patient contraction, while CS is passive.

Asked in

  • 2026 Textbook Q&A Compilation - Physiology of Treatment Modalities: ME/CS/HVLA · Practice questions · slide 163 (answer slide 164)
  • OMM1 Practice Questions - Physiology of Treatment Modalities: ME/CS/HVLA (doc header 'OMM 1 Fall 2020') · Practice questions · Q2
  • 2024 Practice questions Physiology of Treatment Modalities - ME/CS/HVLA (Lect 6) · Practice questions · Q2 (doc header 'OMM 1 Fall 2020')
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 17
436top 215Counterstrain basics

A 23-year-old medical student presents with acute right-sided upper back pain after a back day at the gym. A tender point on the right transverse process of T5 is treated with counterstrain: the patient is passively positioned into comfort for 90 seconds, then slowly returned to neutral. Which of the following best explains the physiologic mechanism behind this treatment?

Ans: Shorten muscle → spindle firing drops → gamma gain resets → tender point softens

Why: Counterstrain shortens the hypertonic muscle, so the spindle stops firing inappropriately and gamma motor neuron activity (gamma gain) is reduced. The tender point softens.

Explanation & sources

Explanation

A is the muscle energy (post-isometric relaxation) mechanism. C and D are other ME principles that require patient contraction. E is a distractor. High-yield: counterstrain resets gamma gain.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 133-134
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 17
437top 215Counterstrain basics

Which statement is true regarding counterstrain technique?

Ans: Dime-sized + in muscle/fascia/tendon/ligament + consistent locations → all true

Why: A tender point is a small, discrete, tense, edematous area about the size of a dime, found in muscle, fascia, tendons or ligaments, at consistent locations from patient to patient.

Explanation & sources

Explanation

Each of A, B and C restates part of the lecture definition. The pressure used to find one is the amount that blanches your fingernail bed; it does not hurt healthy tissue and does not radiate.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 46-47
438asked 3×Counterstrain basics

Which of the following does NOT describe a tender point?

Ans: Radiating pain → trigger point, not tender point → A

Why: Tender point pain stays localized. Pain that radiates away from the point describes a trigger point, not a counterstrain tender point.

Explanation & sources

Explanation

B through E are all from the lecture definition of a tender point. In the 2020 version the radiating option was listed as E; the answer is the same.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 129-130
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 153-154
  • 2020 TA Review Exam 1 · TA review · slides 143-144

6.7 · 5 questions · Questions 439–443

Counterstrain treatment

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Counterstrain steps:

  1. Find the tender point and call its tenderness a 10.
  2. Position into ease: anterior points → flexion, posterior points → extension; fine-tune with small arcs of sidebending/rotation.
  3. Fine-tune until tenderness is 3 or less = at least a 70% reduction (goal 100%).
  4. Hold 90 seconds (proprioceptive firing falls; you may feel a therapeutic pulse).
  5. Return slowly and passively to neutral (if the patient helps, the reflex can restart).
  6. Recheck: the point should stay at 3 or less.

Which point first? Treat the most tender (most significant) points first, and in a row of points treat the middle one first. Example: posterior T2–T4 and much more tender sternal points → start with AT3, in flexion.

Anterior thoracic pointsLocation
AT1–AT6On the sternum at the matching costosternal levels (AT3 = 3rd costosternal joint)
AT7–AT11Anterior abdominal wall, between the xiphoid and the lower abdomen
AT12Inner surface of the iliac crest at the midaxillary line
Lecture slide for this section (1)
IA6 slide 19: the AT3 point; treat the middle point first
439top 215asked 3×Counterstrain treatment

When fine-tuning position for counterstrain, what is the minimum acceptable reduction of pain?

Ans: Tender point starts at 10 → must drop to ≤3 → at least 70% reduction

Why: The tender point is called a 10; the position of ease must bring it to 3 or less, a reduction of at least 70% (goal 100%).

Explanation & sources

Explanation

30% and 60% leave the point too tender. 95% is a good result, not the minimum. After positioning, hold 90 s, return slowly and passively to neutral, then recheck for 3 or less.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 105-106
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 118-119
  • 2022 TA Review - Exam 1 · TA review · slides 68-69
Lecture slide (1)
Study note
440top 215Counterstrain treatment

In performing counterstrain, approximately how long would one hold the patient in a position of comfort to achieve a decrease in proprioceptive firing and to reduce stimulation of muscle contraction?

Ans: Counterstrain hold → 90 seconds

Why: Hold the position of comfort for 90 seconds. That lets proprioceptive firing fall in frequency and amplitude so the mechanoreceptors stop driving contraction.

Explanation & sources

Explanation

30, 45 and 120 seconds are distractors. During the hold you may feel a therapeutic pulse at the tender point, which signals good relaxation. Then return the patient slowly and passively to neutral.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 50-51
Lecture slide (1)
Study note
441Counterstrain treatment

What is the primary treatment position for a posterior counterstrain tender point?

Ans: Posterior point → extension; anterior point → flexion

Why: Posterior tender points are usually treated in extension; anterior points in flexion.

Explanation & sources

Explanation

Flexion is for anterior points. Sidebending and rotation are fine-tuning motions added in small arcs once the primary motion is set.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 52-53
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 19
442top 215asked 6×2026Counterstrain treatment

A 45-year-old male presents with upper back pain. Physical exam identifies tender points at the spinous processes of T2-4 with associated tender points along the sternum. The T2-4 sternum points are much more tender. In applying a counterstrain treatment, which of the following best describes the best initial tender point to treat and its treatment positioning?

Ans: Most tender = anterior → middle of a row = T3 → anterior point → flexion

Why: Treat the most significant points first (the sternal, anterior ones), and in a row treat the middle one first (T3). Anterior points are treated in flexion.

Explanation & sources

Explanation

C and E pick the less tender posterior points. D has the right point but the posterior-point motion. A pairs a posterior point with flexion. AT3 sits on the sternum at the level of the 3rd costosternal joint.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 87-88
  • 2026 OMM1 IA6 ME, CS, HVLA (Poll Everywhere) · In-class poll · slides 21-22
  • 2025 (PE) IA 6 - ME, CS, HVLA · In-class poll · slides 16-18
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 80-81
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 80-81
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 168-169
Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 19
Week 6 · IA6 ME, CS, HVLA · slide 22
443Counterstrain treatment

On physical examination, you locate an anterior thoracic counterstrain tender point on the right lateral iliac crest. What is the most likely thoracic vertebral level associated with this tender point?

Ans: Anterior thoracic point on the iliac crest (midaxillary line) → AT12

Why: The anterior T12 tender point lies on the inner surface of the iliac crest at the midaxillary line.

Explanation & sources

Explanation

AT7-AT11 lie higher, on the anterior abdominal wall between the xiphoid and the lower abdomen, so T8, T9 and T10 are too high. AT1-AT6 are on the sternum at the matching costal levels.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 7, slides 54-55

6.8 · 12 questions · Questions 444–455

HVLA

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HVLA (high-velocity, low-amplitude) is direct and passive: the segment is locked against the restrictive barrier and the physician delivers a short, quick thrust through it, usually during exhalation. A pop (cavitation, a gas bubble from joint distraction) may occur but is not a sign of success; A.T. Still: “popping is no criterion to go by.”

Indication: a distinct somatic dysfunction confirmed by TART, with a firm (hard, solid) restrictive articular end-feel at the barrier, and a conclusion that freeing the joint will help. Pain alone is NOT an indication. A rubbery, spongy or indistinct end-feel, or hypermobility, means choose another technique.

Mechanism: the sudden stretch of the tight muscle and tendon strongly stimulates the Golgi tendon organs → reflex relaxation of the hypertonic muscle (plus a barrage of spindle afferents that turns down gamma activity). ME loads the GTO slowly; HVLA does it suddenly.

Always: consent, explanation, soft tissue preparation first (“don't put the cart before the horse”), and reassessment. Success = barrier resolved and motion improved on recheck.

Thoracic HVLA:

Kirksville CrunchTexas Twist
PositionSupineProne
SetupThenar eminence fulcrum under the posterior TP (side of rotation); upper thoracics (T1–T4) hands clasped behind the neck, mid-thoracics arms crossed over the chest; sidebend to the barrier; thrust through the arms toward the table after exhalationHands on the paraspinal/TP region; in the course photo both hands induce left sidebending (the key marks the “hand contacts the vertebra above/below” options incorrect)

Reading a setup: fulcrum under the right TP → rotated right; “improves with flexion” → F; sidebending left is the barrier → freedom Sr. So the case is T5 F Rr Sr.

Lecture slide for this section (1)
IA6 slide 28: HVLA indications
444HVLA

Which of the following is FALSE regarding HVLA?

Ans: HVLA thrusts through the barrier → direct, not indirect

Why: HVLA is direct: the segment is locked into the barrier and the thrust goes through it. Calling it indirect is false.

Explanation & sources

Explanation

A, C, D and E are true: HVLA is passive, uses a short quick thrust, is often delivered on exhalation, and may produce a pop (cavitation), though a pop is not proof of success.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 104-105
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 23
445top 215asked 9×2026HVLA

Which of the following is an indication for HVLA?

Ans: HVLA needs distinct SD with TART + firm restrictive end-feel → all listed

Why: HVLA is indicated for a distinct somatic dysfunction confirmed by TART (tissue texture change, asymmetry, restriction, tenderness) with a firm restrictive articular end-feel at the barrier.

Explanation & sources

Explanation

Each option is one required piece, so "all of the above" is right. Pain alone is NOT an indication for HVLA. A rubbery, indistinct or hypermobile barrier means choose another technique.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 91-92
  • 2026 OMM1 IA6 ME, CS, HVLA (Poll Everywhere) · In-class poll · slides 30-31
  • 2026 Textbook Q&A Compilation - Physiology of Treatment Modalities: ME/CS/HVLA · Practice questions · slide 165 (answer slide 166)
  • OMM1 Practice Questions - Physiology of Treatment Modalities: ME/CS/HVLA (doc header 'OMM 1 Fall 2020') · Practice questions · Q3
  • 2025 (PE) IA 6 - ME, CS, HVLA · In-class poll · slides 29-31
  • 2024 Practice questions Physiology of Treatment Modalities - ME/CS/HVLA (Lect 6) · Practice questions · Q3 (doc header 'OMM 1 Fall 2020')
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 84-85
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 84-85
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 178-179
Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 28
Week 6 · IA6 ME, CS, HVLA · slide 31
446asked 2×HVLA

Which of the following is indicative of HVLA?

Ans: HVLA indication = SD shown by TART; pain alone is not

Why: The indication for HVLA is a distinct somatic dysfunction shown by TART changes, with a firm end-feel.

Explanation & sources

Explanation

Pain alone is NOT an indication for HVLA. A rubbery end-feel makes the thrust ineffective. Hypermobility is a relative contraindication.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 157-158
  • 2020 TA Review Exam 1 · TA review · slides 147-148
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 28
447HVLA

You are evaluating a 22-year-old female for back pain and find a somatic dysfunction of T5 that improves with flexion. You decide to treat it with HVLA. Which of the following is considered an indication for HVLA?

Ans: HVLA needs a firm articular end-feel at the barrier → D

Why: A firm restrictive articular end-feel at the barrier (with TART findings) is the indication for HVLA.

Explanation & sources

Explanation

Hypermobility is a relative contraindication. Pain alone is not an indication. A rubbery end-feel means the thrust will fail and another technique should be used.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 140-141
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 28
448asked 3×HVLA

What end-feel is required for treatment with HVLA?

Ans: HVLA barrier must feel solid; rubbery/indistinct → choose another technique

Why: The barrier must have a firm, solid end-feel for HVLA to work.

Explanation & sources

Explanation

If the barrier feels rubbery, indistinct or hypermobile, the thrust will be ineffective and another modality should be chosen. Boggy describes acute tissue texture, not a joint end-feel.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 103-104
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 90-91
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 122-123
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 28
449HVLA

A patient presents with back pain after a prolonged period of studying, and you decide to treat using HVLA after myofascial release. Which of the following describes the physiologic mechanism underlying HVLA?

Ans: Quick thrust suddenly stretches tight muscle → GTO fires → reflex relaxation

Why: The thrust suddenly stretches the tight muscle and tendon, strongly stimulating the Golgi tendon organs, which reflexly relax the hypertonic muscle. The lecture also credits a barrage of spindle afferents that turns down gamma activity.

Explanation & sources

Explanation

B describes counterstrain, which works by passive positioning, not a thrust. C is a muscle energy principle. D and E are distractors; increasing agonist contraction would defeat the treatment. ME loads the GTO slowly by isometric contraction; HVLA does it with a sudden thrust.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 138-139
450asked 3×HVLA

After a Kirksville Crunch HVLA for a T5 somatic dysfunction, which of the following indicates the treatment was successful?

Ans: Reassess → barrier gone, motion improved = success; a pop proves nothing

Why: Success is judged by reassessment: the restrictive barrier is resolved and motion is improved.

Explanation & sources

Explanation

A pop is a nitrogen bubble from joint distraction and may come from an unrelated joint; A.T. Still said "popping is no criterion to go by." Soreness and dizziness are side effects, not success. A felt release still has to be confirmed by rechecking.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 146-147
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 159-160
  • 2020 TA Review Exam 1 · TA review · slides 149-150
451HVLA

Which factor is the most important when performing HVLA?

Ans: Consent + explanation + soft tissue prep + reassessment → all required

Why: Every option is part of safe, effective HVLA: consent, explanation, soft tissue preparation and reassessment.

Explanation & sources

Explanation

Patient refusal is an absolute contraindication, so consent is mandatory. A.T. Still warned that restoring the joint before the muscles and ligaments is "putting the cart before the horse." Reassessment confirms whether the barrier resolved.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 123-124
452HVLA

A 22-year-old has a somatic dysfunction of T5 that improves with flexion. With the patient supine and arms crossed, you place your left thenar eminence on the right transverse process of T5. You then sidebend the neck and torso to the left. After the patient exhales deeply, you apply a quick, short thrust through the patient's crossed arms toward the table. What technique is being used?

Ans: Supine + crossed arms + thenar fulcrum + thrust on exhale → Kirksville Crunch

Why: A supine thoracic thrust over a thenar-eminence fulcrum through the crossed arms is the Kirksville Crunch, an HVLA technique.

Explanation & sources

Explanation

The Texas Twist is the prone thoracic HVLA. Muscle energy uses patient contraction, not a thrust. Counterstrain is a passive hold in the position of ease with no thrust.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 144-145
453HVLA

A 22-year-old has a somatic dysfunction of T5 that improves with flexion. With the patient supine and arms crossed, you place your left thenar eminence on the right transverse process of T5, sidebend the neck and torso to the left, and after deep exhalation thrust through the crossed arms toward the table. What is the somatic dysfunction being treated?

Ans: Improves in flexion → F; fulcrum under right TP → Rr; sidebend left = barrier → Sr → FRrSr

Why: Improving with flexion makes it flexed (F). The fulcrum sits under the posterior right TP, so it is rotated right. Sidebending left is the barrier, so the freedom is sidebent right: T5 FRrSr.

Explanation & sources

Explanation

Both E options contradict "improves with flexion." FRlSl puts the rotation on the wrong side. Type II dysfunctions rotate and sidebend to the same side.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 148-149
454HVLA

During your practical, you diagnose your partner with an upper thoracic somatic dysfunction, T3 FRrSr. Your proctor instructs you to treat it with a Kirksville Crunch HVLA. How would you set the patient up?

Ans: Rotated right → fulcrum under right TP; upper thoracic (T1-T4) → hands behind neck

Why: Place the thenar fulcrum under the right (posterior) TP of T3, the side of the rotation. For upper thoracic segments (T1-T4) the patient clasps the hands behind the neck.

Explanation & sources

Explanation

A and B put the fulcrum on the wrong side. D uses the crossed-arm hold, which the TA notes reserve for mid-thoracic segments (T5-T8), with the arm on the side of the dysfunction on top.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 119-120
455HVLA

In the prone HVLA technique shown, which option describes the action of the physician's hands?

Ans: Follow the curved arrows → both hands drive the same direction → left sidebending

Why: The 2023 Canvas quiz key marks A: the curved arrows in the photo show both hands working together to induce left sidebending.

Explanation & sources

Explanation

C names the opposite direction. B and D describe hand contacts the key marks as incorrect. This is a prone thoracic thrust of the Texas Twist type; the Kirksville Crunch is the supine version.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 6, slides 35-36

6.9 · 6 questions · Questions 456–461

Contraindications

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Absolute = never do it. Relative = use caution or choose another technique. Patient refusal is an absolute contraindication to all OMT.

TechniqueAbsoluteRelative
HVLA (Lecture 6)Patient refusal; fracture/dislocation; bony malignancy; ankylosis/fusion; upper cervical: Down syndrome, RA, Chiari malformation, achondroplastic dwarfism (risk to the transverse ligament of the dens)Hypermobility (incl. Ehlers-Danlos), acute herniated disc, acute radiculopathy, acute whiplash, severe muscle spasm, acute strain/sprain, osteopenia/osteoporosis, spondylolisthesis
CounterstrainUnstabilized fracture or torn ligament in the area; patient refusalStressed patients who can't relax, uncooperative children, severe osteoporosis, C-spine with vertebral artery disease, severely ill patients (metastatic CA, cervicals in RA)
Muscle energyNo consent; patient unable to follow commands. (Excessive patient contraction is a technique error, not a contraindication, though one 2020 TA key used it as the answer.)Rheumatologic joint (cervical) instability, e.g. Down syndrome; ICU/low-vitality patients (ME needs the patient's energy)

2026 review slide (ME, HVLA and direct MFR): fracture/dislocation; rheumatologic joint instability (RA, scleroderma, Down syndrome); osteoporosis; acute injury where damaged tissue could be further damaged (sprains/strains/tears); undiagnosed joint swelling; open wounds; hematoma; cervical OMT with vertebral or carotid artery disease; unstable/infirm patient; infection or metastases/neoplasia in the area; neurologic entrapment syndromes (HVLA).

Counterstrain indications (not contraindications): acute or chronic SD, as primary treatment or with other modalities, and frail patients.

Puzzle: a patient with Chiari malformation who wants a “passive and direct” technique → the only passive-direct technique is HVLA, which is absolutely contraindicated → none of the above.

Lecture slides for this section (2)
IA6 slide 32: counterstrain contraindications
Written Review slide 39: ME, HVLA, dMFR contraindications
456top 215asked 3×Contraindications

You are evaluating a 22-year-old for back pain and find a somatic dysfunction of T5 that improves with flexion. You plan HVLA. Which of the following is an absolute contraindication?

Ans: No consent → no treatment → patient refusal is absolute

Why: Patient refusal is an absolute contraindication to HVLA and to all OMT.

Explanation & sources

Explanation

Acute radiculopathy, acute sprain/strain and hypermobility are relative HVLA contraindications in Lecture 6. Pain is not a contraindication, but pain alone is not an indication either. The 2025 Harlem version offered osteoporosis and acute whiplash as distractors; Lecture 6 lists both as relative.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 101-102
  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 142-143
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 88-89
Lecture slide (1)
Week 6 · Written Review deck · slide 39
457Contraindications

Which of the following is an example of a relative contraindication for HVLA?

Ans: Spasm → treat with caution (relative); fracture and bony malignancy → never (absolute)

Why: Severe muscle spasm (with acute whiplash and strain/sprain) is a relative HVLA contraindication in Lecture 6.

Explanation & sources

Explanation

Fracture and bony malignancy are absolute contraindications. D is the indication for HVLA. Other relative ones: acute herniated disc, acute radiculopathy, osteopenia/osteoporosis, spondylolisthesis, hypermobility syndromes.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 129-130
458Contraindications

What is the difference between a relative contraindication and an absolute contraindication to HVLA? Give examples.

AnswerAbsolute: never thrust (patient refusal, fracture/dislocation, Down syndrome, RA, Chiari malformation, achondroplasia, ankylosis/fusion, bony malignancy). Relative: use caution or another technique (hypermobility, acute herniated disc, acute radiculopathy, acute whiplash, osteoporosis, spondylolisthesis).

Ans: Absolute → do not perform; relative → caution, weigh risk, often choose another technique

Why: An absolute contraindication means HVLA must not be done. A relative contraindication means it may be done with caution, or another technique is safer.

Explanation & sources

Explanation

Lecture 6 lists the upper cervical group (Down syndrome, RA, achondroplastic dwarfism, Chiari malformation) as absolute; cervical thrusts in RA and Down syndrome risk disrupting the transverse ligament of the dens. Hypermobility is relative because you cannot get a solid lock-out.

Asked in

  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'Difference between contraindication and absolute contraindication to HVLA'
Lecture slide (1)
Week 6 · Written Review deck · slide 39
459top 215asked 2×Contraindications

Which of the following is a contraindication to muscle energy?

Ans: Down syndrome → rheumatologic joint instability → listed for ME, HVLA and direct MFR

Why: The 2026 review slide lists rheumatologic joint instability (RA, scleroderma, Down syndrome) as a contraindication for ME, HVLA and direct MFR. Lecture 6 lists rheumatologic cervical instability as a relative ME contraindication.

Heads up: The 2020 TA key marks A (excessive patient muscular contraction). Lecture 6 lists that under ME safety, not contraindications, while the 2026 review slide puts Down syndrome (rheumatologic joint instability) in the ME/HVLA/dMFR contraindication column, so B is the better answer. If this exact TA question appears, know that the TA intended A.

Explanation & sources

Explanation

Chiari malformation and achondroplasia are on the Lecture 6 HVLA (upper cervical) absolute list, not the ME list. Ehlers-Danlos is a hypermobility syndrome, a relative HVLA contraindication. Excessive patient contraction is a technique error (it can cause tendon avulsion or rib fracture), not a patient condition that rules out ME.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 149-150
  • 2020 TA Review Exam 1 · TA review · slides 139-140
Lecture slide (1)
Week 6 · Written Review deck · slide 39
460asked 2×Contraindications

Which is a contraindication for counterstrain?

Ans: CS absolute contraindications: fracture or torn ligament in area, refusal

Why: A fracture in the area of treatment is an absolute contraindication to counterstrain, along with an unstabilized torn ligament and patient refusal.

Explanation & sources

Explanation

A, B and D are all listed CS indications: acute or chronic SD, use alone or with other modalities, and frail or hesitant patients. Relative CS contraindications include patients who cannot relax, children who cannot stay passive, severe osteoporosis and vertebral artery disease.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 155-156
  • 2020 TA Review Exam 1 · TA review · slides 145-146
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 32
461Contraindications

A patient has a Type II thoracic dysfunction and a history of diabetes, hypertension and Chiari malformation. He requests a passive and direct treatment. What would you do?

Ans: Passive + direct = HVLA → Chiari = absolute HVLA contraindication → none

Why: The only passive, direct option is HVLA (Texas Twist), and Chiari malformation is an absolute contraindication to HVLA, so none of the choices fits.

Explanation & sources

Explanation

Muscle energy is direct but active. Counterstrain is passive but indirect. Lecture 6 lists Chiari under the upper cervical HVLA contraindications, and the course indications handout lists it as an absolute HVLA contraindication.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 101-102

6.10 · 3 questions · Questions 462–464

Choosing a technique

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Pick the technique by asking what the patient's tissues and condition can tolerate:

  • Acute injury where damaged tissue could be hurt further (acute ankle sprain, acute strain) → avoid the direct techniques (ME, HVLA, direct MFR) → use counterstrain (indirect, gentle, well tolerated). A negative drawer sign and x-ray rule out a torn ligament or fracture, which would contraindicate CS too.
  • Goal is to shorten a hypertonic muscle → indirect → counterstrain (perpendicular stretch and ME lengthen it). Acute injury and spondylolisthesis are also relative HVLA contraindications.
  • Bony metastases in the painful region → no direct force (HVLA, ME: pathologic fracture risk) and avoid lymphatic pumping/diaphragm releases (may theoretically hasten spread) → a gentle indirect technique to the painful region, e.g. facilitated positional release to the lumbar spine (counterstrain to the neck treats the wrong region).
462top 215asked 3×2026Choosing a technique

A 14-year-old male presents with his mother with right ankle pain after twisting it playing basketball earlier today. Exam finds a preference for ankle inversion, tenderness of the anterior talofibular ligament, and bogginess over the lateral ankle. Negative ankle drawer sign; inversion and eversion still have hard end-feels. Ankle x-ray is negative. Which type of OMT would most likely be used to treat the patient's ankle?

Ans: Acute sprain → no direct techniques (ME, HVLA, dMFR) → indirect counterstrain

Why: An acute injury where damaged tissue could be further damaged is a contraindication to the direct techniques (ME, HVLA, direct MFR). Counterstrain is indirect and gentle, so it fits.

Explanation & sources

Explanation

A and C are direct myofascial release. D and E are direct techniques. The negative drawer and x-ray rule out a torn ligament or fracture, which would contraindicate counterstrain too. CS is well tolerated in acute and chronic patients.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 93-94
  • 2026 OMM1 IA6 ME, CS, HVLA (Poll Everywhere) · In-class poll · slides 36-37
  • 2025 (PE) IA 6 - ME, CS, HVLA · In-class poll · slides 34-36
Lecture slides (2)
Week 6 · IA6 ME, CS, HVLA · slide 37
Week 6 · Written Review deck · slide 39
463Choosing a technique

A patient comes in with an acute injury with spondylolisthesis. You decide the best initial treatment is to shorten their hypertonic muscle. Which technique would you use?

Ans: Shorten hypertonic muscle → indirect → counterstrain

Why: Shortening the hypertonic muscle is the definition of an indirect approach, and counterstrain is the indirect technique listed.

Explanation & sources

Explanation

Perpendicular stretch and muscle energy lengthen the muscle (direct). HVLA is direct, and both acute injury and spondylolisthesis are relative HVLA contraindications.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 93-94
Lecture slide (1)
Week 6 · IA6 ME, CS, HVLA · slide 17
464top 215asked 2×2026Choosing a technique

A 75-year-old male has chronic low back pain due to known metastatic prostate cancer to the lumbar vertebrae. The most appropriate osteopathic manipulative therapy is:

Ans: Bony mets → avoid direct force (HVLA, ME) and lymphatic pumping → gentle indirect FPR

Why: With bony metastases, direct techniques could cause a pathologic fracture, so a gentle indirect technique to the painful region, facilitated positional release, is most appropriate.

Explanation & sources

Explanation

HVLA and muscle energy are direct; metastases in the area of OMT are a contraindication. Counterstrain is indirect but the cervical spine is not where his pain is. Pelvic diaphragm release augments lymphatic flow, which may theoretically hasten metastatic spread.

Asked in

  • 2026 Textbook - The Basics (Ch. 1 Review Questions) · Textbook chapter questions · TB_Basics.pdf p.13 Q5 (answer key p.16)
  • 2026 Textbook Q&A Compilation - The Basics · Textbook chapter questions · slide 9 (answer slide 10); textbook TB_Basics.pdf p.13 Q5
Lecture slide (1)
Week 6 · Written Review deck · slide 39

Week 7 · 124 questions

Clinical Ribs

Questions 465–588

11 sections in this week
  1. 7.1Rib classification
  2. 7.2Rib articulations & landmarks
  3. 7.3Rib cage function & shape
  4. 7.4Pump, bucket, caliper motion
  5. 7.5Muscles of respiration
  6. 7.6Muscles that move ribs
  7. 7.7Thoracic outlet syndrome
  8. 7.8Inhalation vs exhalation SD
  9. 7.9Rib SD findings
  10. 7.10Key rib (BITE)
  11. 7.11Rib ME & HVLA techniques

7.1 · 13 questions · Questions 465–477

Rib classification

No questions in this section match the current Show filter.

Learn firstWhat you need for 7.1
CategoryRibsDefining feature
True1–7Attach directly to the sternum
False8–12Do not articulate directly with the sternum; 8–10 join the costal cartilage of the rib above (if no 8–12 choice, answer 8–10)
Floating11–12No anterior attachment; articulate only with the bodies of T11 and T12
Typical3–9Five parts: head (two demifacets), neck, tubercle, angle, shaft (with costal groove); costosternal attachment in front
Atypical1, 2, 11, 12 (sometimes 10)Memory tool: ribs with a “1” or a “2”

Why each atypical rib is atypical: rib 1: shortest, broadest, most sharply curved; one facet (T1 only), no angle, grooves for the subclavian vessels. Rib 2: rough tuberosity for serratus anterior (a tuberosity is not a part of a typical rib; don't confuse it with the tubercle). Rib 10: single facet (unifacet) on T10. Ribs 11–12: one facet, no neck, no costotransverse joint, no sternal attachment.

Conventions differ: older TA keys list typical 2–9 and atypical 1, 11, 12; the 2026 slides make rib 2 atypical. Use typical 3–9, atypical 1, 2, 11, 12, but if 1, 2, 11, 12 isn't offered, the best remaining choice is 1, 11, 12. Ribs 6–9 are all typical; rib 3 is the safest “typical” answer.

Lecture slide for this section (1)
Written Review slide 41: rib anatomy
465asked 3×Rib classification

Sort ribs 1-12 into each category: true, false, floating, typical, and atypical. Give the defining feature of each.

AnswerTrue 1-7 (attach directly to sternum); false 8-12 (8-10 join costal cartilage above); floating 11-12 (vertebral bodies only); typical 3-9; atypical 1, 2, 11, 12 (sometimes 10).

Ans: Sternum direct → true 1-7 · no direct sternum → false 8-12 · no front attachment → floating 11-12

Why: True ribs (1-7) attach directly to the sternum. False ribs (8-12) do not; 8-10 join the costal cartilage of the rib above. Floating ribs (11-12) articulate only with the bodies of T11 and T12.

Heads up: The 2022-2025 TA keys and the Lect 8 slide list typical 2-9 and atypical 1, 11, 12. The 2026 review deck and IA7 slides call rib 2 atypical (tuberosity for serratus anterior), so use typical 3-9 and atypical 1, 2, 11, 12 for this exam.

Explanation & sources

Explanation

The 2026 review deck memory tool: atypical ribs are the ones with a "1" or "2" (1, 2, 11, 12, sometimes 10). Rib 1 has one facet and no angle, rib 2 has a tuberosity for serratus anterior, rib 10 has a single unifacet, and ribs 11-12 have one facet, no neck, and no costotransverse joint.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 112-113
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 93-94
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 246-247
Lecture slides (2)
Week 7 · Written Review deck · slide 41
Week 7 · IA7 Clinical Ribs · slide 7
466top 215asked 4×2026Rib classification

A female with a history of asthma is receiving osteopathic manipulative treatment to improve her costal cage motion. The operator lastly palpates the false ribs. The most appropriate list of ribs examined is

Ans: False = no direct sternal attachment, not floating → 8-10

Why: Ribs 1-7 attach directly to the sternum (true). Ribs 8-10 reach it only through the costal cartilage of the rib above, so they are the false ribs in this narrow sense.

Explanation & sources

Explanation

Choices starting at 6 or 7 include true ribs (1-7). Choices running to 11 include a floating rib. 1-8 mixes true ribs with one false rib. The IA7 slide calls 8-12 false with 11-12 also floating; with no 8-12 choice, 8-10 is the answer.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.11 Q9 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 91 (answer slide 92); textbook TB_Thorax_RibCage.pdf p.11 Q9
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 96-97
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 212-215
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 7
Week 7 · Written Review deck · slide 41
467Rib classification

What defines "true" and "false" ribs?

Ans: True = attach directly to sternum → false = no direct sternal attachment

Why: True ribs (1-7) articulate directly with the sternum. False ribs (8-12) do not; the 2026 IA7 slide words it as "don't articulate with sternum."

Explanation & sources

Explanation

A reverses the relationship. All ribs connect to the vertebral column and none attach to the clavicle, so C is wrong. D describes location, not the definition. Strictly, ribs 8-10 reach the sternum indirectly through costal cartilage.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 164-165
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 7
468Rib classification

What best describes rib 10?

Ans: Rib 10 joins costal cartilage, not sternum → false rib

Why: Rib 10 joins the costal cartilage of the rib above and does not articulate directly with the sternum, so it is a false rib.

Explanation & sources

Explanation

A and B wrongly say rib 10 reaches the sternum. Floating ribs are only 11 and 12. Rib 10's cartilage marks the lowest point of the rib cage in the midclavicular line.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 84-85
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 7
469top 215asked 5×2026Rib classification

Which of the following rib(s) is considered to be atypical?

Ans: Atypical = ribs with a "1" or "2" → rib 1

Why: Rib 1 is atypical: it is the shortest, broadest, most curved rib, with a single facet for T1 and no angle.

Explanation & sources

Explanation

Ribs 3-9 are typical, so A, B, and C are all typical ribs. Atypical ribs in the 2026 review deck: 1, 2, 11, 12, and sometimes 10.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 95-96
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 5-7
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 107-108
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 106-107
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 219-220
Lecture slide (1)
Week 7 · Written Review deck · slide 41
470asked 2×2026Rib classification

A female with a history of asthma is receiving osteopathic manipulative treatment to improve her costal cage motion. Which of the following are considered atypical ribs?

Ans: Memory tool: ribs with a "1" or "2" → 1, 2, 11, 12

Why: The atypical ribs are 1, 2, 11, and 12. Rib 1 has one facet, rib 2 has a large tuberosity, and ribs 11-12 have no sternal or costotransverse articulation.

Explanation & sources

Explanation

Ribs 3 and 9 are typical, which rules out B, D, and E. C leaves out rib 2. Rib 10 is "sometimes" atypical because of its single facet, but the standard answer is 1, 2, 11, 12.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.10 Q7 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 87 (answer slide 88); textbook TB_Thorax_RibCage.pdf p.10 Q7
Lecture slide (1)
Week 7 · Written Review deck · slide 41
471Rib classification

Which of the following ribs are considered atypical?

Ans: Rib 3 is typical → drop A, B, C → 1, 11, 12

Why: Ribs 1, 11, and 12 are atypical under every convention. D is the keyed answer and the only choice that lists no typical rib and includes both floating ribs.

Heads up: The 2022 TA key (D) follows the older "atypical 1, 11, 12" convention. The 2026 review deck adds rib 2 (atypical 1, 2, 11, 12). That full list is not offered here, so D remains the best choice.

Explanation & sources

Explanation

A, B, and C include rib 3, which is typical. E includes rib 2 but leaves out rib 11. Under the 2026 slides rib 2 is also atypical, so the complete list would be 1, 2, 11, 12.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 213-215
Lecture slide (1)
Week 7 · Written Review deck · slide 41
472asked 2×Rib classification

Which of the following is a typical rib?

Ans: Typical ribs = 3-9 → rib 3

Why: Rib 3 is a typical rib. It has a head with two demifacets (T2 and T3), a neck, a tubercle, an angle, and a shaft.

Explanation & sources

Explanation

Ribs 1, 11, and 12 are atypical in every source. Rib 2 is atypical in the 2026 slides because of its tuberosity for serratus anterior, so rib 3 is the only safe answer.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 192-193
  • 2020 TA Review Exam 1 · TA review · slides 182-183
Lecture slide (1)
Week 7 · Written Review deck · slide 41
473Rib classification

Which of the following statements concerning ribs 6-9 is true?

Ans: Typical = 3-9 → 6, 7, 8, 9 all typical

Why: Ribs 6-9 are all within the typical range (3-9).

Explanation & sources

Explanation

Rib 9 is typical: it still has two demifacets (T8 and T9). Rib 6 is typical too. The atypical ribs are 1, 2, 11, 12 (sometimes 10).

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 219-220
Lecture slide (1)
Week 7 · Written Review deck · slide 41
474asked 2×Rib classification

What parts make a rib typical?

Ans: Typical rib = head, neck, tubercle, angle, shaft

Why: A typical rib has a head (two demifacets), neck, tubercle, angle, and shaft.

Explanation & sources

Explanation

Every other choice either swaps the shaft for a "facet" or leaves out the head or neck. The facets are on the head, not separate parts. The 2026 review deck also lists the costal groove on the shaft.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 194-196
  • 2020 TA Review Exam 1 · TA review · slides 184-186
Lecture slide (1)
Week 7 · Written Review deck · slide 41
475Rib classification

A typical rib will have all of the following landmarks except?

Ans: Typical: head, neck, tubercle, angle, shaft → tuberosity is rib 2's feature

Why: A tuberosity (for serratus anterior) is the feature that makes rib 2 atypical. Typical ribs do not have one.

Explanation & sources

Explanation

Tubercle, head, neck, and angle are all standard parts of a typical rib. Do not confuse the tubercle (which articulates with the transverse process) with rib 2's tuberosity.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 217-218
Lecture slide (1)
Week 7 · Written Review deck · slide 41
476asked 2×2026Rib classification

A female with a history of asthma is receiving osteopathic manipulative treatment to improve her costal cage motion. The typical ribs are then palpated. Anatomic features consistent with a typical rib include

Ans: Typical ribs (mostly 3-7 true ribs) → costosternal attachment

Why: Typical ribs have a costosternal attachment in front, directly for the true ribs and through costal cartilage for 8-9.

Explanation & sources

Explanation

The tubercle articulates only with its own transverse process, not the one above (A). The costal groove carries the intercostal vein, artery, and nerve, not the azygos (B). Typical ribs have two facets on the head (D), and the tubercle meets the transverse process, not the vertebral body (E).

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.10 Q8 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 89 (answer slide 90); textbook TB_Thorax_RibCage.pdf p.10 Q8
Lecture slide (1)
Week 7 · Written Review deck · slide 41
477Rib classification

Which statement is TRUE regarding the classification of ribs and their vertebral articulation?

Ans: 2026 slides: rib 2 atypical, rib 10 single unifacet (sometimes atypical) → C

Why: Rib 10 has a single unifacet on T10, and the 2026 review deck lists it among the atypical ribs ("sometimes rib 10"). Rib 2 articulates with T1 and T2 but is atypical because of its serratus anterior tuberosity.

Heads up: The 2025 TA key marks B (rib 2 typical). The 2026 IA7 slide says rib 2 "is still atypical," and the 2026 review deck lists rib 10 among the atypical ribs, so C fits the 2026 slides. The 2026 sources disagree on rib 10 (IA7 calls it "the only typical rib with a unifacet"), so expect the exam to avoid this exact question.

Explanation & sources

Explanation

Rib 1 is atypical and articulates only with T1 (A). Ribs 3-9 are typical with demifacets, not unifacets (D). B states the older "rib 2 is typical" convention.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 165-166
Lecture slide (1)
Week 7 · Written Review deck · slide 41

7.2 · 12 questions · Questions 478–489

Rib articulations & landmarks

No questions in this section match the current Show filter.

Learn firstWhat you need for 7.2

Two posterior joints: the costovertebral joint (rib head to the vertebral body facets) and the costotransverse joint (rib tubercle to the transverse process of its own vertebra). Ribs 11–12 have only a costovertebral joint.

RibsHead articulates with
2–9Demifacets on its own vertebra and the one above (rib n → Tn and Tn−1): rib 3 → T2 + T3; rib 4 → T3 + T4; rib 6 → T5 + T6
1, 10, 11, 12A single unifacet on its own vertebra only (rib 10 → T10; never the vertebra below)

Rib 2 has demifacets but is still atypical (tuberosity). The IA7 slide calls rib 10 “the only typical rib with a unifacet”; the review deck lists it as sometimes atypical.

Landmarks for finding ribs:

LandmarkRib
Manubrium, just under the clavicleRib 1
Sternal angle (angle of Louis)Rib 2
Spine of the scapula (posterior)Rib 3
Inferior angle of the scapulaAbout rib 7
Rib 10 costal cartilageLowest point of the rib cage in the midclavicular line
First bone above and nearly parallel to the iliac crest (posterior)Rib 12

Intercostal bundle: runs in the costal groove on the underside of each rib in VAN order, top to bottom: vein, artery, nerve. The nerve is lowest, so procedures (e.g. a chest tube in the 4th intercostal space) go just above the rib below.

478Rib articulations & landmarks

What is the name of the joint the blue arrow is pointing to? (The arrow points to where the rib head meets the vertebral body.)

Ans: Rib head + vertebral body → costovertebral joint

Why: The costovertebral joint is where the rib head meets the demifacets (or facet) of the vertebral body.

Explanation & sources

Explanation

The costotransverse joint is the rib tubercle against the transverse process, which is lateral to the arrow. "Vertebral-transverse" and "vertebral-neck" are not real joint names. The costotransverse joint is absent in ribs 11 and 12.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 65-66
479Rib articulations & landmarks

In rib articulation with the vertebral column, the head of the rib typically forms connections with:

Ans: Typical rib n → demifacets of Tn and Tn-1

Why: A typical rib head articulates with demifacets on its own vertebra and the vertebra above (rib n with Tn and Tn-1).

Explanation & sources

Explanation

It is the vertebra above, not below (B). Unifacets occur only for ribs 1 and 10-12 (C, D). The cartilage is at the front end of the rib, not the head (E).

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 161-162
480Rib articulations & landmarks

Which ribs fit each description? (a) Articulate with a demifacet of the corresponding vertebra and the one above; (b) costotransverse articulation is absent; (c) articulate with (uni)facets of the corresponding vertebra; (d) the only typical rib articulating with a unifacet.

Answer(a) Ribs 2-9; (b) ribs 11, 12; (c) ribs 1, 10, 11, 12; (d) rib 10.

Ans: Demifacets 2-9 · unifacets 1, 10-12 · no costotransverse 11-12

Why: Ribs 2-9 sit between two vertebrae (demifacets). Ribs 1 and 10-12 meet only their own vertebra (unifacet). Ribs 11-12 have no costotransverse joint.

Explanation & sources

Explanation

Rib 2 has demifacets on T1 and T2 but is still atypical because of its tuberosity (IA7). The IA7 slide calls rib 10 "the only typical rib with a unifacet," though the 2026 review deck lists it as sometimes atypical.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 114-115
Lecture slide (1)
Week 7 · Written Review deck · slide 41
481top 215Rib articulations & landmarks

Upon palpation of the ribs, which thoracic vertebrae articulate with rib 3?

Ans: Rib n → Tn and Tn-1 → T2 and T3

Why: Ribs 2-9 articulate with demifacets on the vertebra of the same number and the one above, so rib 3 meets T2 and T3.

Explanation & sources

Explanation

B uses the vertebra below. C skips T3. D (single vertebra) applies only to ribs 1 and 10-12.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 194-195
482Rib articulations & landmarks

What does rib 4 articulate with?

Ans: Rib n → Tn + Tn-1 → T4 and T3 demifacets

Why: Rib 4 articulates with demifacets on T4 and T3 (its own vertebra and the one above).

Explanation & sources

Explanation

T5 is the vertebra below, so B is wrong. Unifacets (C, D) are only for ribs 1 and 10-12.

Asked in

  • 2022 TA Review - Exam 1 · TA review · slides 82-83
483Rib articulations & landmarks

You find an inhalation somatic dysfunction of rib 6 on your friend. What is the posterior articulation of this rib?

Ans: Rib n → Tn and Tn-1 → T6 and T5

Why: Typical ribs articulate with the vertebra of the same number and the one above, so rib 6 meets T6 and T5.

Explanation & sources

Explanation

A and B use vertebrae below. D (one vertebra only) is true only for ribs 1 and 10-12. The rib's tubercle also forms a costotransverse joint with the T6 transverse process.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 98-99
484top 215asked 2×Rib articulations & landmarks

Your attending asks what facet(s) rib 10 articulates with. You tell her:

Ans: Rib 10 = single facet, own vertebra only → unifacet of T10

Why: Rib 10's head articulates with a single unifacet on T10. It does not reach T9.

Explanation & sources

Explanation

Demifacets on T9 and T10 (A) would be the pattern for ribs 2-9. Ribs never articulate with the vertebra below (C). The IA7 slide calls rib 10 "the only typical rib with a unifacet"; the 2026 review deck lists it as sometimes atypical for the same reason.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 163-164
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 196-197
Lecture slide (1)
Week 7 · Written Review deck · slide 41
485asked 2×Rib articulations & landmarks

Ribs 11 and 12 have which type of posterior articulation?

Ans: Ribs 11-12 have no tubercle joint → costovertebral only

Why: Ribs 11 and 12 have only a costovertebral joint (head to vertebral body). The costotransverse joint (tubercle to transverse process) is absent.

Explanation & sources

Explanation

B and C wrongly include the costotransverse joint. Ribs 11 and 12 also have no anterior sternal attachment, which is why they are "floating."

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 202-203
  • 2020 TA Review Exam 1 · TA review · slides 192-193
486top 215asked 2×Rib articulations & landmarks

Which rib is at the angle of Louis?

Ans: Angle of Louis (manubriosternal joint) → rib 2

Why: Rib 2 articulates with the sternum at the angle of Louis (sternal angle), the junction of the manubrium and body.

Explanation & sources

Explanation

Rib 1 attaches to the manubrium under the clavicle. Rib 3 is at the level of the spine of the scapula posteriorly. Rib 7 is near the inferior angle of the scapula.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 199-200
  • 2020 TA Review Exam 1 · TA review · slides 189-190
487Rib articulations & landmarks

A patient has restricted inhalation of his upper ribs. To localize which rib is dysfunctional, which bony landmark do you use to reach the 2nd rib?

Ans: 2nd rib → sternal angle (angle of Louis)

Why: The 2nd rib articulates with the sternum at the sternal angle (angle of Louis).

Explanation & sources

Explanation

The manubrium under the clavicle is rib 1 (A). The spine of the scapula is rib 3 posteriorly (B). The nipple line is not a rib landmark in the lecture.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 249-250
488Rib articulations & landmarks

To diagnose a patient's exhalation somatic dysfunction through caliper motion, you palpate posteriorly the first bony structure above and almost parallel to the iliac crest. What rib are you on?

Ans: First bone above iliac crest → 12th rib

Why: Posteriorly, the 12th rib is the first bony structure palpated above the iliac crests and runs almost parallel to them.

Explanation & sources

Explanation

Ribs 9-11 sit higher. The 10th rib's cartilage marks the lowest point of the rib cage anteriorly in the midclavicular line. Ribs 11-12 move in caliper motion.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 251-252
489Rib articulations & landmarks

True or false: the order of the vessels and nerve in the superior part of the intercostal space (top to bottom) is vein, artery, nerve.

Ans: VAN runs top to bottom under each rib → true

Why: The intercostal bundle runs in the costal groove in VAN order from superior to inferior: vein, artery, nerve.

Explanation & sources

Explanation

The nerve is the lowest structure, so procedures go just above the rib below. Lect 8: a chest tube usually goes in the 4th intercostal space just above the 5th rib.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 125-126

7.3 · 9 questions · Questions 490–498

Rib cage function & shape

No questions in this section match the current Show filter.

Learn firstWhat you need for 7.3

Four functions of the rib cage: protection of vital organs; respiration; a pump for venous and lymphatic return; a platform for the upper extremities. (Digestion is not one.)

Things that affect the ribs: visceral organs (hung from bone by ligaments/fascia), any surgery (even abdominal or pelvic), muscle spasm, and postural compensation (e.g. Dowager's hump). Genetics/family history is not on the list.

Chest deformitySternumCause
Barrel chestProjects forward and upward; AP diameter increasedPathological: emphysema, COPD, asthma
Pectus excavatum (funnel chest)Pushed posteriorly (sunken) by an overgrowth of the ribsCongenital
Pectus carinatum (pigeon chest)Projects forward and downwardCongenital
Kyphotic deformityKey feature
Round backPelvic inclination of 20°
Humpback (gibbus)Anterior wedging of 1–2 vertebrae; normal pelvic inclination (~30°)
Dowager's humpPostmenopausal osteoporosis with multiple anterior wedge fractures
Scheuermann's diseaseAdolescent kyphosis
Pott's diseaseSpinal tuberculosis
Lecture slide for this section (1)
Written Review slide 42: chest deformities
490Rib cage function & shape

Which function is NOT typically associated with the rib cage?

Ans: Rib cage: protect, breathe, pump, platform → not digestion

Why: The lecture's four rib-cage functions are protection of vital organs, respiration, a pump for venous and lymphatic return, and a platform for the upper extremities. Digestion is not one.

Explanation & sources

Explanation

A, B, and C are all on the Lect 8 list. The pump function is why rib treatment helps lymphatic and venous return.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 157-158
491Rib cage function & shape

Among the following, which is NOT associated with the ribs and their function?

Ans: Lecture list: viscera, surgery, spasm, posture → not genetics

Why: The lecture lists what can affect the ribs: visceral organs, any surgery (even abdominal or pelvic), muscle spasm, and postural compensation. Genetics and family history is not on the list.

Explanation & sources

Explanation

Pelvic surgery is on the list because it disturbs reciprocal tension through the body. Dowager's hump is a postural compensation. Visceral organs hang from the bones by ligaments and fascia, so problems spread in both directions.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 151-152
492Rib cage function & shape

A patient presents with a sternum that projects downward and forward. Describe this presentation.

Ans: Sternum forward + down → pigeon chest (pectus carinatum)

Why: Pectus carinatum (pigeon chest): the sternum projects forward and downward. It is congenital.

Explanation & sources

Explanation

Pectus excavatum (funnel chest) is a sternum pushed posteriorly by rib overgrowth. Barrel chest is forward and upward with an increased AP diameter (emphysema, COPD).

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 204-205
Lecture slide (1)
Week 7 · Written Review deck · slide 42
493top 215Rib cage function & shape

A patient presents with the sternum pushed posteriorly. On exam there is overgrowth of the ribs. Describe this presentation and its etiology.

Ans: Sternum pushed back by rib overgrowth → funnel chest → congenital

Why: Pectus excavatum (funnel chest): the sternum is pushed posteriorly by an overgrowth of the ribs. It is congenital.

Explanation & sources

Explanation

Pectus carinatum projects forward (A). B has the right shape but the wrong etiology. Barrel chest is pathological, but its sternum projects forward and upward (C).

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 206-207
Lecture slide (1)
Week 7 · Written Review deck · slide 42
494asked 2×Rib cage function & shape

A patient presents with the sternum pushed posteriorly by an overgrowth of the ribs. The patient has:

Ans: Sternum pushed back → funnel chest (pectus excavatum)

Why: A sternum pushed posteriorly by rib overgrowth is funnel chest (pectus excavatum), which is congenital.

Explanation & sources

Explanation

Pigeon chest and pectus carinatum (A, B) are the same thing: a sternum projecting forward and down. Barrel chest projects forward and up from emphysema or COPD.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 187-188
  • 2020 TA Review Exam 1 · TA review · slides 177-178
Lecture slide (1)
Week 7 · Written Review deck · slide 42
495Rib cage function & shape

Which chest deformity is typically associated with pathological conditions rather than being congenital?

Ans: Pathological (emphysema/COPD) → barrel chest

Why: Barrel chest (sternum forward and upward, increased AP diameter) comes from pathological conditions such as emphysema and COPD.

Explanation & sources

Explanation

Pigeon chest and funnel chest are both congenital per the slides. Scoliosis is a spinal curve, not a chest wall deformity.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 153-154
Lecture slide (1)
Week 7 · Written Review deck · slide 42
496top 215Rib cage function & shape

A 70-year-old male with decreased FEV1/FVC and FEV1 is diagnosed with emphysema. Describe possible findings on an osteopathic structural exam.

Ans: Emphysema → barrel chest → sternum forward and up, ↑ AP diameter

Why: Emphysema produces a barrel chest: the sternum projects forward and upward and the AP diameter is increased.

Explanation & sources

Explanation

Forward and downward (A) is pectus carinatum. Posterior with a decreased AP diameter (C) is pectus excavatum. Both are congenital.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 208-209
Lecture slide (1)
Week 7 · Written Review deck · slide 42
497asked 3×Rib cage function & shape

An 83-year-old female presents with irritability, sleep difficulties, hot flashes, and night sweats, and is hunched over. Calcium is low and X-ray shows multiple anterior wedge fractures. What type of deformity will you most likely see?

Ans: Postmenopausal osteoporosis + wedge fractures → Dowager's hump

Why: Dowager's hump results from postmenopausal osteoporosis with anterior wedge fractures, often with scoliosis.

Explanation & sources

Explanation

Scheuermann's disease is adolescent kyphosis. Round back has a pelvic inclination of about 20°. Humpback (gibbus) is anterior wedging of one or two vertebrae with a normal 30° pelvic inclination. Pott's disease is spinal tuberculosis.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 210-211
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 190-191
  • 2020 TA Review Exam 1 · TA review · slides 180-181
498Rib cage function & shape

Which spinal deformity is characterized by a pelvic inclination of 20 degrees?

Ans: Pelvic inclination 20° → round back

Why: Round back (kyphosis) has a pelvic inclination of 20 degrees.

Explanation & sources

Explanation

Humpback (gibbus) is anterior wedging of one or two vertebrae with a normal pelvic inclination of about 30°. Dowager's hump comes from postmenopausal osteoporosis and wedge fractures. Swayback is not one of the kyphotic deformities on the slide.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 155-156

7.4 · 16 questions · Questions 499–514

Pump, bucket, caliper motion

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All of ribs 1–10 have both pump- and bucket-handle components; each group is named for the motion that predominates.

Pump handleBucket handleCaliper
Ribs1–5 (upper)6–10 (middle, more caudal)11–12 (floating)
AxisTransverseAP (closer to a sagittal plane)Moves in a horizontal plane (no costotransverse joint)
On inhalationAnterior end elevates, posterior end fixed; pushes the sternum up and forward at the manubriosternal jointLateral portion elevates; anterior and posterior ends fixedLateral ends move posteriorly, inferiorly, laterally (anteriorly and medially on exhalation)
Diameter increasedAPTransverseAP and transverse; stabilizes the diaphragm's origins
Where to feel itAnteriorly, midclavicular lineLateral borders of the rib cage (midaxillary)Posteriorly, lower ribs

On exhalation the motions reverse (e.g. bucket ribs 6–10: lateral portion descends with the ends fixed). Because the ribs slope downward, elevating them increases the AP diameter. The first rib moves up on inhalation, down on exhalation.

Palpating rib 1 (supine): thumbs push the trapezius posteriorly to reach the posterior first rib; index finger above the clavicle, middle finger below it near the sternoclavicular joint. Compare sides while the patient breathes.

Lecture slide for this section (1)
IA7 slide 11: rib motion
499Pump, bucket, caliper motion

Which ribs move primarily in pump-handle motion, primarily in bucket-handle motion, and primarily in caliper motion?

AnswerPump handle: ribs 1-5. Bucket handle: ribs 6-10. Caliper: ribs 11-12. Ribs 1-10 have both pump and bucket components; one predominates.

Ans: Upper 1-5 pump · middle 6-10 bucket · floating 11-12 caliper

Why: Upper ribs (1-5) are mainly pump handle (↑ AP diameter). Middle ribs (6-10) are mainly bucket handle (↑ transverse diameter). Floating ribs (11-12) move in caliper motion.

Explanation & sources

Explanation

All ribs have both pump and bucket components; the classification names the predominant one. Caliper motion of 11-12 helps stabilize the origins of the diaphragm.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 116-117
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
500top 215asked 5×2026Pump, bucket, caliper motion

Which of the following statements is true regarding rib motion?

Ans: Pump = transverse axis (AP diameter) · bucket = AP axis

Why: Pump-handle motion rotates around a transverse axis and increases the AP diameter. Bucket-handle motion rotates around an AP axis.

Explanation & sources

Explanation

Ribs 1-10 have both pump and bucket components, not one or the other (A). Caliper motion is ribs 11-12 (C). Caudal ribs are mostly bucket handle (D). Bucket handle is assessed at the lateral rib cage; pump handle is felt anteriorly (E).

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 97-98
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 16-18
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 109-110
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 108-109
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 228-229
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
501top 215Pump, bucket, caliper motion

Which of the following is TRUE regarding rib movements?

Ans: Ribs 6-10 → bucket → ↑ transverse diameter

Why: Ribs 6-10 move mainly in bucket-handle motion, which raises the lateral rib and increases the transverse diameter.

Explanation & sources

Explanation

Ribs 1-5 are pump handle and increase the AP diameter (A). In pump handle the anterior end rises, not the lateral portion (B). In inhalation, caliper ribs move posteriorly, inferiorly, and laterally (D). The anterior end rising with the posterior end fixed is pump handle (E).

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 152-153
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
502Pump, bucket, caliper motion

Which type of motion is associated with the more caudal ribs, where the axis is closer to a sagittal plane and increases the transverse diameter?

Ans: Lower ribs + transverse diameter → bucket handle

Why: The more caudal ribs move mostly in bucket-handle motion, which increases the transverse diameter of the rib cage.

Explanation & sources

Explanation

Pump handle dominates the cephalic ribs and increases the AP diameter. Caliper motion is limited to ribs 11-12 in a horizontal plane. Swayback is a posture, not a rib motion.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 159-160
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
503Pump, bucket, caliper motion

Billy was playing soccer when he was elbowed in the side of his rib cage, ribs 6-10. What motion is primarily affected?

Ans: Ribs 6-10 → bucket handle

Why: Ribs 6-10 move primarily in bucket-handle motion.

Explanation & sources

Explanation

Pump handle is mainly ribs 1-5 (AP diameter). Caliper is ribs 11-12. Bucket handle increases the transverse diameter; caliper changes both AP and transverse slightly.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 95-96
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
504top 215Pump, bucket, caliper motion

What is the motion of ribs 1-5 during inspiration?

Ans: Ribs 1-5 → pump: anterior end up, posterior fixed, ↑ AP

Why: In pump-handle motion the anterior end elevates while the posterior end stays fixed, increasing the AP diameter.

Explanation & sources

Explanation

The anterior end rises on inspiration, so A is wrong. The posterior end is the fixed pivot, not the end that elevates (B, D).

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 198-199
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
505Pump, bucket, caliper motion

What is the motion of ribs 6-10 during expiration?

Ans: Ribs 6-10 bucket → exhale = lateral portion drops, ends fixed

Why: In bucket-handle motion the lateral portion moves while the anterior and posterior ends stay fixed. On expiration the lateral portion descends.

Explanation & sources

Explanation

A is the same motion during inspiration. C and D wrongly move the anterior and posterior ends, which act as the handle's fixed points.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 200-201
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
506Pump, bucket, caliper motion

Name the ribs and the type of motion: these ribs have lateral ends that move posteriorly, inferiorly, and laterally to increase the AP and transverse diameters during inspiration.

Ans: Lateral ends post-inf-lat → caliper → ribs 11-12

Why: This is caliper motion of ribs 11-12. It increases both the AP and transverse diameters and stabilizes the origins of the diaphragm.

Explanation & sources

Explanation

Bucket-handle motion (ribs 6-10) raises the lateral rib and mainly increases the transverse diameter. Ribs 11-12 are not bucket handle.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 202-203
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
507Pump, bucket, caliper motion

Fill in the blanks: caliper motion of ribs 11 and 12 consists of the lateral ends moving ____, increasing the ____ and ____ diameters and stabilizing the origins of the diaphragm. Caliper motion moves along a ____ plane.

AnswerPosteriorly-inferiorly-laterally; AP and transverse; horizontal plane.

Ans: Floating ribs → lateral ends post/inf/lat → AP + transverse ↑ → horizontal plane

Why: In inhalation the lateral ends of ribs 11-12 move posteriorly, inferiorly, and laterally, increasing the AP and transverse diameters. The motion is in a horizontal plane because there is no costotransverse joint to limit it.

Explanation & sources

Explanation

On exhalation the caliper ribs move anteriorly and medially. Rib 12's caliper motion helps anchor the diaphragm.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 243-244
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
508top 215asked 2×Pump, bucket, caliper motion

What type of motion do ribs 11 and 12 exhibit (the motion monitored when diagnosing the floating ribs)?

Ans: Floating ribs 11-12 → caliper

Why: The floating ribs (11-12) move in caliper motion.

Explanation & sources

Explanation

Pump handle is mainly ribs 1-5 and bucket handle mainly ribs 6-10. "Floating motion" is not a recognized rib motion.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 90-91
  • 2023 TA Review - Written Exam 1 · TA review · slides 185-186
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
509Pump, bucket, caliper motion

Fill in the blanks: during inspiration, the anteroposterior diameter of the thorax is ____ when the ribs are ____. Because the ribs slope ____, any elevation during inspiration results in an ____ movement of the sternum at the ____ joint.

AnswerIncreased; raised (elevated); downward; upward (and forward); manubriosternal.

Ans: Ribs slope down → elevation pushes sternum up/forward → ↑ AP diameter

Why: Ribs slope downward, so raising them during inspiration pushes the sternum upward and forward at the manubriosternal joint and increases the AP diameter.

Explanation & sources

Explanation

This is pump-handle motion of the upper ribs. Bucket-handle motion of the lower ribs instead increases the transverse diameter.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slide 221
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 11
510Pump, bucket, caliper motion

As a patient breathes in and out, you assess the movement of the first rib. How would you describe its movement?

Ans: Rib 1 (like ribs 2-10) → up on inhalation, down on exhalation

Why: The first rib moves upward on inhalation and downward on exhalation, like ribs 2-10.

Explanation & sources

Explanation

Posterior/anterior (B) and lateral/medial (C) describe caliper-type motion of the floating ribs, not rib 1. Rib 1 articulates only with T1 and is elevated by the anterior and middle scalenes.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 223-224
511top 215Pump, bucket, caliper motion

Where is pump-handle motion of the ribs best evaluated?

Ans: Pump = anterior end rises → feel at midclavicular line

Why: Pump-handle motion is the anterior end rising, so it is felt anteriorly at the midclavicular line.

Explanation & sources

Explanation

The sternoclavicular joint is used for ribs 1-2. Bucket-handle motion is felt at the lateral (midaxillary) rib cage. The AC joint is not a rib motion landmark.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 83-84
512top 215asked 2×2026Pump, bucket, caliper motion

A female with a history of asthma is receiving osteopathic manipulative treatment to improve her costal cage motion. In examining for bucket-handle motion of her ribs, the optimal placement of the operator's hands is over the

Ans: Bucket = lateral rib rises → hands on lateral border

Why: Bucket-handle motion is elevation of the lateral part of the rib, so the hands go over the lateral borders of the rib cage, fingers along the intercostal spaces.

Explanation & sources

Explanation

The anterior margin and sternum are where you feel pump handle. The rib angles and transverse processes are posterior landmarks for rib and spine SD, not respiratory bucket motion.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.10 Q5 (answer key p.13)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 83 (answer slide 84); textbook TB_Thorax_RibCage.pdf p.10 Q5
513Pump, bucket, caliper motion

In the image below, what is the physician evaluating? (Supine patient; the physician's hands are at the base of the neck, just above the clavicles.)

Ans: Thumbs behind trapezius, fingers by clavicle → first rib

Why: The physician is evaluating the first rib: the thumbs push the trapezius back to contact the posterior first rib while the fingers rest near the clavicle.

Explanation & sources

Explanation

The scalenes and trapezius are soft tissues the hands pass over, not the target. Upper thoracics are assessed at the spinous and transverse processes, usually with the patient seated or prone.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 88-89
514Pump, bucket, caliper motion

What are the contact points when palpating the first rib?

AnswerPatient supine. Thumbs push the trapezius posteriorly to contact the posterior first rib; index finger rests above the clavicle; middle finger below the clavicle beneath the sternoclavicular joint.

Ans: Rib 1 hides under trapezius and clavicle → thumbs behind, fingers around clavicle

Why: The first rib sits under the trapezius and clavicle. The thumbs push the trapezius back to reach it posteriorly, and the fingers straddle the clavicle near the sternoclavicular joint.

Explanation & sources

Explanation

Compare the two sides as the patient breathes: a rib that stops first on inhalation is an exhalation SD, and one that stops first on exhalation is an inhalation SD.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 178-179

7.5 · 7 questions · Questions 515–521

Muscles of respiration

No questions in this section match the current Show filter.

Learn firstWhat you need for 7.5
InhalationExhalation
PrimaryDiaphragm (with its crura; 100% of quiet and ~60% of deep inspiration) and external intercostalsInternal intercostals (quiet exhalation is largely passive recoil)
Accessory (forced breathing)SCM, scalenes, pectoralis major and minor, serratus anterior, latissimus dorsi, serratus posterior superior, iliocostalisAbdominals (rectus, transversus, obliques), iliocostalis (lowest fibers), longissimus, serratus posterior inferior, quadratus lumborum

Traps: internal intercostals are the primary expiratory muscle, not accessory. The diaphragm is primary, not accessory. Trouble inhaling with upper-rib involvement → an accessory inspiratory muscle on those ribs, e.g. serratus anterior (ribs 2–9).

Phrenic nerve (C3–C5) supplies the diaphragm. Irritation → hiccups and referred ipsilateral shoulder pain.

515asked 2×Muscles of respiration

What are the muscles of inhalation?

Ans: Inhalation: diaphragm + external intercostals; accessory SCM, scalenes

Why: Inhalation uses the diaphragm (with its crura) and external intercostals, helped by accessory muscles such as the SCM and scalenes.

Explanation & sources

Explanation

Rectus abdominis and transversus abdominis are expiratory (A, B). Internal intercostals are the primary expiratory muscle (C). B is the list of expiratory accessory muscles.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 109-110
  • 2020 TA Review Exam 1 · TA review · slides 98-99
516top 215asked 4×2026Muscles of respiration

Which is a primary muscle of inspiration?

Ans: Primary inspiration = diaphragm + external intercostals

Why: The primary inspiratory muscles are the diaphragm and the external intercostals.

Explanation & sources

Explanation

Scalenes, pectoralis minor, and serratus anterior are accessory inspiratory muscles for forced breathing. Internal intercostals are the primary expiratory muscle. The diaphragm does 100% of quiet inspiration and about 60% of deep inspiration.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.10 Q6 (answer key p.14)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 85 (answer slide 86); textbook TB_Thorax_RibCage.pdf p.10 Q6
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 211-212
  • 2020 TA Review Exam 1 · TA review · slides 202-203
517Muscles of respiration

A patient presents with upper back pain and trouble breathing. You notice difficulty during inhalation. Which muscle might be causing this dysfunction?

Ans: Inhalation problem → inspiratory muscle → external intercostals

Why: The external intercostals are a primary muscle of inhalation, so they are the only choice tied to the inspiratory phase.

Explanation & sources

Explanation

Internal intercostals are the primary expiratory muscle. Transversus abdominis, rectus abdominis, and external oblique are accessory expiratory muscles.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 121-122
518Muscles of respiration

A patient comes in and you auscultate their breath sounds. As they breathe in normally, what muscles are they using? What about for breathing out normally?

AnswerIn: diaphragm and external intercostals. Out: internal intercostals (quiet exhalation is largely passive recoil).

Ans: Quiet in → diaphragm + external intercostals · quiet out → internal intercostals

Why: Quiet inspiration uses the diaphragm and external intercostals. The lecture lists the internal intercostals as the primary expiratory muscle.

Explanation & sources

Explanation

Accessory inspiration (forced): SCM, scalenes, pectoralis major/minor, serratus anterior, latissimus dorsi, serratus posterior superior, iliocostalis. Accessory expiration: abdominals, iliocostalis, longissimus, serratus posterior inferior, quadratus lumborum.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 127-128
519asked 2×Muscles of respiration

Which of the following are the accessory muscles of expiration?

Ans: Internal intercostals = primary → accessory = abdominals, serratus posterior inferior

Why: Rectus abdominis and serratus posterior inferior are accessory expiratory muscles that help with forced exhalation.

Explanation & sources

Explanation

The internal intercostals are the primary expiratory muscle, not accessory, so A and E are wrong. Other accessory expiratory muscles: transversus and obliques, iliocostalis (lowest fibers), longissimus, quadratus lumborum.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 213-214
  • 2020 TA Review Exam 1 · TA review · slides 204-205
520Muscles of respiration

Which of the following would indicate a dysfunctional phrenic nerve?

Ans: Phrenic C3-C5 → diaphragm → shoulder pain + hiccups

Why: The phrenic nerve (C3-C5) supplies the diaphragm. Irritation shows up as hiccups and referred pain to the ipsilateral shoulder.

Explanation & sources

Explanation

Finger numbness points to the brachial plexus (C5-T1). Bilateral leg weakness is a cord or lumbar problem. Jaw pain and dysphagia are cranial nerve or cardiac issues.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 178-179
521Muscles of respiration

An older man has a really hard time inhaling, and his key rib is rib 3 (exhalation somatic dysfunction). Which accessory muscle likely has impaired function?

Ans: Trouble inhaling → accessory inspiratory muscle on upper ribs → serratus anterior

Why: Serratus anterior is an accessory muscle of inspiration that attaches to ribs 2-9, including the restricted upper ribs.

Explanation & sources

Explanation

Internal intercostals are the primary expiratory muscle. The diaphragm is a primary (not accessory) inspiratory muscle. Rectus abdominis is an accessory expiratory muscle.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 105-106
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28

7.6 · 16 questions · Questions 522–537

Muscles that move ribs

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Learn firstWhat you need for 7.6

Learn the course slide's list of muscles that move each rib. These are also the muscles used for muscle energy of an exhalation rib dysfunction.

Rib(s)Muscle
1Anterior and middle scalenes
2Posterior scalene
3–5Pectoralis minor (to the coracoid)
2–9Serratus anterior (the ME muscle for ribs 6–9)
10–12Latissimus dorsi (the ME muscle for ribs 10–11)
12Quadratus lumborum (iliac crest/iliolumbar ligament → rib 12)

Rib 1 attachments (MASS): Middle scalene, Anterior scalene, Subclavius, Serratus anterior. From the neck only the anterior and middle scalenes; from the anterior chest wall the subclavius and serratus anterior. The posterior scalene goes to rib 2; pectoralis minor to 3–5; the SCM attaches to no rib. If asked which muscles attach to (move) rib 1 and both serratus anterior and the anterior/middle scalenes are offered, choose the scalenes.

Clinical links: a hypertonic anterior scalene (e.g. from coughing) holds rib 1 up in an inhalation SD. QL depresses rib 12 (forced exhalation) and fixes it during inhalation, so increased QL tone pulls rib 12 down; low back pain toward the iliac crest + restricted ribs 11–12 → QL. Ribs 6–7 → serratus anterior and rectus abdominis (rectus to costal cartilages 5–7). Ribs 11–12 → posterior muscles (QL, latissimus, serratus posterior inferior, iliocostalis, longissimus), not rectus abdominis/external oblique. Tender pectoralis minor after MI is ruled out → ribs 3–5. Rectus abdominis attaches to ribs 5–7.

Lecture slide for this section (1)
IA7 slide 28: muscles that move ribs
522top 215asked 2×Muscles that move ribs

Which muscles attach to the first rib?

Ans: Rib 1 → anterior + middle scalenes (MASS)

Why: The anterior and middle scalenes attach to rib 1. MASS: Middle and Anterior Scalenes, Subclavius, Serratus anterior.

Explanation & sources

Explanation

Pectoralis minor attaches to ribs 3-5. Serratus anterior does reach rib 1 in the MASS list, but the muscles used to move rib 1 are the scalenes. The posterior scalene goes to rib 2, which rules out C.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 168-169
  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 86-87
  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 69-70
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
523Muscles that move ribs

What are the neck muscle attachments to the first rib?

Ans: Neck → rib 1: anterior + middle scalenes only

Why: Only the anterior and middle scalenes run from the neck to rib 1.

Explanation & sources

Explanation

The posterior scalene inserts on the outer surface of rib 2, so C and D are wrong.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 225-226
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
524Muscles that move ribs

What are the anterior chest wall muscle attachments to the first rib?

Ans: MASS: chest wall part = Subclavius + Serratus anterior

Why: From the anterior chest wall, the subclavius and serratus anterior attach to rib 1 (the "SS" of MASS).

Explanation & sources

Explanation

Pectoralis minor attaches to ribs 3-5. Pectoralis major attaches to the clavicle, sternum, and costal cartilages and has no first-rib attachment in the MASS list.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 227-228
525asked 2×Muscles that move ribs

Which of the following does not attach to rib 1?

Ans: MASS = attach to rib 1 → posterior scalene goes to rib 2

Why: The posterior scalene inserts on rib 2, not rib 1.

Explanation & sources

Explanation

MASS lists rib 1's attachments: Middle scalene, Anterior scalene, Subclavius, Serratus anterior.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 205-206
  • 2020 TA Review Exam 1 · TA review · slides 195-196
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
526asked 2×Muscles that move ribs

Which muscle attaches to rib 2?

Ans: Rib 2 → posterior scalene

Why: The posterior scalene (C5-C7 transverse processes) inserts on the outer surface of rib 2.

Explanation & sources

Explanation

The anterior and middle scalenes insert on rib 1. The SCM attaches to the sternum, clavicle, and mastoid, not the ribs.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 215-216
  • 2020 TA Review Exam 1 · TA review · slides 206-207
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
527asked 2×Muscles that move ribs

Where does the pectoralis minor attach on the ribs?

Ans: Pec minor → ribs 3, 4, 5

Why: Pectoralis minor arises from ribs 3, 4, and 5 and inserts on the coracoid process.

Explanation & sources

Explanation

With the scapula fixed, pectoralis minor elevates ribs 3-5, so it is the muscle used for ME of exhalation SD at those ribs.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 217-218
  • 2020 TA Review Exam 1 · TA review · slides 208-209
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
528top 215Muscles that move ribs

What muscle(s) attach to the 12th rib?

Ans: Rib 12 → quadratus lumborum

Why: Quadratus lumborum runs from the iliolumbar ligament and iliac crest to rib 12.

Explanation & sources

Explanation

Serratus anterior attaches to the upper ribs (2-9 on the IA7 slide). Pectoralis minor attaches to ribs 3-5. The posterior scalene attaches to rib 2.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 92-93
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
529asked 2×Muscles that move ribs

A dysfunction of the quadratus lumborum can result in what rib dysfunction?

Ans: QL inserts on rib 12 → rib 12 SD

Why: Quadratus lumborum inserts only on rib 12, so QL hypertonicity drives a rib 12 dysfunction.

Explanation & sources

Explanation

Ribs 10-11 are moved by the latissimus dorsi (10-12 on the IA7 slide), not the QL.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 219-220
  • 2020 TA Review Exam 1 · TA review · slides 210-211
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
530Muscles that move ribs

Increased tone of the quadratus lumborum will cause the 12th rib to

Ans: QL pulls rib 12 toward the pelvis → depresses

Why: The QL depresses rib 12 (during forced exhalation) and fixes it during inhalation, so increased tone pulls the 12th rib down.

Explanation & sources

Explanation

QL pulls rib 12 toward the iliac crest, so it cannot elevate it. Rotation and compression are not QL actions on the rib.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 94-95
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
531Muscles that move ribs

You come down with the flu and notice that your rib 12 feels stuck. What muscle is causing that?

Ans: Rib 12 → quadratus lumborum

Why: Quadratus lumborum attaches to rib 12 and is the muscle linked to rib 12 dysfunction.

Explanation & sources

Explanation

Serratus posterior inferior and latissimus dorsi also reach the lower ribs, but the course pairs rib 12 with the QL. Serratus anterior works on the upper ribs.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 107-108
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
532Muscles that move ribs

A patient has persistent low back pain radiating toward the iliac crest and difficulty breathing. The 11th and 12th ribs are restricted during inhalation. What muscle would you expect to have a somatic dysfunction that could explain the dyspnea?

Ans: Pain to iliac crest + ribs 11-12 → quadratus lumborum

Why: The quadratus lumborum runs from the iliac crest to rib 12. A tight QL holds the lower ribs down and causes pain toward the iliac crest.

Explanation & sources

Explanation

Erector spinae do not anchor rib 12 to the crest. Serratus anterior works the upper ribs. The diaphragm is a primary breathing muscle but does not explain the iliac crest pain. Rectus abdominis attaches to ribs 5-7.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 240-241
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
533Muscles that move ribs

A patient has marked somatic dysfunction of ribs 6-7. Which muscles are likely hypertonic?

Ans: Ribs 6-7 → serratus anterior (2-9) + rectus abdominis (5-7)

Why: Serratus anterior attaches to ribs 2-9 and rectus abdominis to costal cartilages 5-7, so both reach ribs 6-7.

Explanation & sources

Explanation

The QL attaches only to rib 12 (A, D). The anterior and middle scalenes go to rib 1 (B). Latissimus dorsi and longissimus work the lowest ribs.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 158-159
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
534Muscles that move ribs

A patient has a rib 11 or 12 somatic dysfunction. Which muscles are NOT likely hypertonic?

Ans: Lower posterior ribs → QL, lat, SPI, iliocostalis, longissimus → not anterior abdominals

Why: The muscles that pull on ribs 11-12 are posterior: QL, latissimus dorsi, serratus posterior inferior, iliocostalis, and longissimus. Rectus abdominis attaches to ribs 5-7, so the abdominal pair is the least likely.

Explanation & sources

Explanation

A, B, and D all list muscles the lecture ties to the lowest ribs. External oblique does slip onto the lower ribs, but paired with rectus abdominis this is still the weakest match.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 160-161
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
535asked 2×2026Muscles that move ribs

A 54-year-old male presents with crushing retrosternal chest pain of 2 hours' duration. A myocardial infarction is ruled out, but some pain persists in the left chest. It is worse with extension, shoulder abduction, and trunk movement, and there are tender points in the pectoralis minor. Dysfunction of which of the following could account for this?

Ans: Pec minor tenderness → pec minor attaches ribs 3-5

Why: Pectoralis minor attaches to ribs 3-5, so tenderness there points to a rib 3-5 dysfunction.

Explanation & sources

Explanation

Rib 1 goes with the anterior and middle scalenes and rib 2 with the posterior scalene. Ribs 6-9 go with serratus anterior and rib 10 with latissimus dorsi. Always rule out MI first.

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  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.9 Q2 (answer key p.13)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 77 (answer slide 78); textbook TB_Thorax_RibCage.pdf p.9 Q2
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
536asked 2×2026Muscles that move ribs

An 18-year-old female has a non-productive cough of 3 days' duration and sore ribs from coughing. She is febrile with scant rhonchi bilaterally. Structural exam shows the right first rib is held in inhalation and ribs 7-10 on the left are held in exhalation. A likely cause of the right rib dysfunction is

Ans: Rib 1 held up + coughing → scalenes (attach rib 1) in spasm

Why: The anterior and middle scalenes attach to rib 1 and are strained by coughing. A scalene spasm holds rib 1 up in inhalation.

Explanation & sources

Explanation

Infiltrates do not displace ribs. The first intercostal space lies between ribs 1 and 2, so intercostal spasm would not hold rib 1 up. Pectoralis minor attaches to ribs 3-5. A somatovisceral reflex goes from soma to viscera, the wrong direction here.

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  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.10 Q4 (answer key p.13)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 81 (answer slide 82); textbook TB_Thorax_RibCage.pdf p.10 Q4
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
537Muscles that move ribs

While examining your patient's thoracic inlet, you find that during deep breathing the right first rib stays stuck higher than the left. You diagnose an inhalation somatic dysfunction of the right first rib. What muscle is likely hypertonic and causing it?

Ans: Rib 1 held up → hypertonic scalene on rib 1 → anterior scalene

Why: The anterior scalene (with the middle scalene) attaches to rib 1 and pulls it up. When hypertonic it holds the rib in inhalation.

Explanation & sources

Explanation

The posterior scalene goes to rib 2. Trapezius does not attach to the ribs. Serratus posterior superior attaches to ribs 2-5. The diaphragm attaches to the lower 6 ribs.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 101-102
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28

7.7 · 3 questions · Questions 538–540

Thoracic outlet syndrome

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Thoracic outlet syndrome (TOS): compression of the brachial plexus (ventral rami C5–T1) and/or the subclavian vessels in the space between the clavicle and the first rib (the thoracic outlet). Symptoms: arm pain, numbness and paresthesias; venous compression can cause swelling (even facial edema).

Site of compressionStructures
Scalene triangleAnterior and middle scalenes over the first rib (not the posterior scalene, which goes to rib 2)
Costoclavicular spaceClavicle and first rib (not the second rib)
Pectoral (subcoracoid)Pectoralis minor (not major) near the coracoid

Causes: cervical rib (congenital), abnormal/tight anterior and middle scalenes, fibrous bands, trauma (car accident, whiplash), repetitive overhead motion, poor posture (drooping shoulders, forward head), weight changes (weight gain, bodybuilding, pregnancy).

Differential: thumb and arm numbness with facial edema and equal, reactive pupils → thoracic inlet/outlet syndrome. Horner's syndrome and a Pancoast tumor cause miosis; Erb's palsy (C5–C6) weakens the biceps and its reflex; Klumpke's palsy (C8–T1) affects the ulnar hand. The cervical plexus controls neck and upper torso muscles and occiput/neck/shoulder skin; the brachial plexus supplies the shoulder, arm and hand.

Lecture slide for this section (1)
Written Review slide 44: thoracic outlet syndrome
538top 215asked 6×2026Thoracic outlet syndrome

A 44-year-old male presents to the ED with right upper extremity pain and paresthesias. You determine he has thoracic outlet syndrome. Which of the following structures has been implicated as a potential cause?

Ans: TOS = compression between collarbone and 1st rib → clavicle + 1st rib

Why: TOS is compression of the brachial plexus and subclavian vessels in the space between the clavicle and the first rib. Entrapment there is the costoclavicular type.

Explanation & sources

Explanation

The third TOS site is pectoralis minor, not major. The posterior scalene goes to rib 2 and is not part of the scalene triangle (anterior + middle scalenes). The other two TOS sites are the scalene triangle and the pectoralis minor near the coracoid.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 99-100
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 20-22
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 111-112
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 110-111
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 254-255
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 230-231
Lecture slide (1)
Week 7 · Written Review deck · slide 44
539Thoracic outlet syndrome

Which structure or pair of structures is involved in thoracic outlet syndrome?

Ans: Scalene triangle = anterior + middle scalenes over 1st rib

Why: The plexus and subclavian artery can be compressed in the scalene triangle between the anterior and middle scalenes over the first rib. The 2026 review deck lists these as the abnormal muscles in TOS.

Explanation & sources

Explanation

The pectoral site is pectoralis minor, not major (A). The posterior scalene goes to rib 2 (B). Costoclavicular TOS involves the clavicle and first rib, not the second (D).

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  • 2023 TA Review - Written Exam 1 · TA review · slides 166-167
Lecture slide (1)
Week 7 · Written Review deck · slide 44
540asked 2×Thoracic outlet syndrome

A 66-year-old female has headaches and left otitis media. Exam: numbness of the left thumb and along the left arm; the left face is slightly more edematous; biceps reflex 2/4, strength 5/5; pupils equal and reactive. What is the most likely cause?

Ans: Arm numbness + facial venous congestion, no Horner's → thoracic inlet/outlet syndrome

Why: Compression at the thoracic inlet (thoracic outlet syndrome) can squeeze the brachial plexus (arm and thumb numbness) and the venous drainage (facial edema).

Explanation & sources

Explanation

Equal reactive pupils argue against Horner's syndrome and a Pancoast tumor, which usually causes Horner's. Erb's palsy (C5-C6) would weaken the biceps and reduce its reflex. Klumpke's palsy (C8-T1) affects the ulnar hand, not the thumb.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 208-209
  • 2020 TA Review Exam 1 · TA review · slides 198-199
Lecture slides (2)
Week 7 · Written Review deck · slide 44
Week 7 · Written Review deck · slide 43

7.8 · 7 questions · Questions 541–547

Inhalation vs exhalation SD

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Rib dysfunctions are named for their freedom, just like vertebrae. Find the phase in which a rib stops moving first compared with the others; that is its restriction, and the SD is named for the opposite phase.

Inhalation SDExhalation SD
Rib is heldUp (elevated) in inhalationDown (depressed) in exhalation
Moves freely intoInhalationExhalation
Stops first duringExhalation (= exhalation restriction)Inhalation (= inhalation restriction)
PatientCan't breathe out fully; painfulCan't breathe in fully; pain at maximum inhalation
Key rib (BITE)Bottom rib of the groupTop rib of the group

Reading your hands (supine, compare sides): if one side doesn't rise on inhalation (the other hand rises more), that side has an exhalation SD. If one side stays up (doesn't fall) on exhalation, that side has an inhalation SD. Don't confuse the SD name with the restriction: ribs that inhale easily but can't exhale = inhalation SD (an exhalation restriction). An exhalation-SD rib feels depressed relative to its neighbors during inspiration.

Lecture slides for this section (2)
IA7 slide 24: inhalation vs exhalation SD
Written Review slide 45: evaluation and diagnosis
541Inhalation vs exhalation SD

Fill in the blank: if a rib stops moving relative to others on inhalation, it is classified as an ____ somatic dysfunction. If a rib stops moving relative to others on exhalation, it is classified as an ____ somatic dysfunction.

AnswerStops on inhalation = exhalation SD (depressed rib). Stops on exhalation = inhalation SD (elevated rib).

Ans: Stops early in a phase → free in the other → named for the freedom

Why: Rib SDs are named for the freedom. A rib that stops first on inhalation moves freely into exhalation, so it is an exhalation SD (depressed). A rib that stops first on exhalation is an inhalation SD (elevated).

Explanation & sources

Explanation

Exhalation SD = inhalation restriction; inhalation SD = exhalation restriction. Do not mix the SD name with the restriction name.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 238-239
Lecture slides (2)
Week 7 · Written Review deck · slide 45
Week 7 · IA7 Clinical Ribs · slide 24
542Inhalation vs exhalation SD

When a rib is restricted in its ability to move into exhalation, it is typically held in what position?

Ans: Can't exhale → stuck up → held in inhalation

Why: A rib that cannot move into exhalation is stuck up, held in the inhalation position (an elevated rib, inhalation SD).

Explanation & sources

Explanation

"Restriction" is not a position. Depression and exhalation describe the opposite problem: a rib that cannot inhale.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 100-101
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 24
543top 215Inhalation vs exhalation SD

When evaluating your patient's rib cage, you discover ribs 3-8 on the left have ease of inhaling but difficulty exhaling. What type of somatic dysfunction do they have?

Ans: Free into inhalation → SD named for freedom → inhalation SD

Why: Somatic dysfunction is named for the freedom. These ribs move freely into inhalation, so this is an inhalation SD.

Explanation & sources

Explanation

"Exhalation restriction" (A) correctly names the barrier but not the SD, which is what the question asks. B and C are the opposite pattern.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 71-72
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 24
544top 215Inhalation vs exhalation SD

In evaluating the first rib, you discover your patient's right rib stops moving into inhalation well before the left. How would you name the rib on the right?

Ans: Stops first on inhalation → free into exhalation → right 1st rib exhalation SD

Why: The right rib stops first on inhalation, so it is free into exhalation: a right first rib exhalation somatic dysfunction.

Explanation & sources

Explanation

The left rib moves normally, so B and D are wrong. C uses the wrong term: this rib has an *inhalation* restriction.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 67-68
Lecture slides (2)
Week 7 · Written Review deck · slide 45
Week 7 · IA7 Clinical Ribs · slide 24
545asked 2×2026Inhalation vs exhalation SD

A 76-year-old male with an inoperable lung mass complains of rib pain and shortness of breath, with frequent coughing of frothy, blood-tinged sputum. Coarse breath sounds are heard. Ribs 5 and 6 on the right demonstrate reduced motion during inhalation. The most likely diagnosis is

Ans: Reduced inhalation → free into exhalation → ribs 5-6 exhalation SD

Why: Ribs 5-6 are restricted in inhalation and free into exhalation, so this is a ribs 5-6 exhalation dysfunction. SDs are named for the freedom.

Explanation & sources

Explanation

C names the wrong direction. A, D, and E name the wrong ribs.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.9 Q3 (answer key p.13)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 79 (answer slide 80); textbook TB_Thorax_RibCage.pdf p.9 Q3
Lecture slides (2)
Week 7 · Written Review deck · slide 45
Week 7 · IA7 Clinical Ribs · slide 24
546Inhalation vs exhalation SD

Which of the following is true about exhalation somatic dysfunctions?

Ans: Exhalation SD = stuck down → depressed on inspiration

Why: In an exhalation SD the rib is stuck in the exhaled (depressed) position, so during inspiration it feels lower than the ribs around it.

Explanation & sources

Explanation

The key rib for an exhalation SD is the top rib, not the bottom (A; BITE). B and C describe an inhalation SD (a rib that cannot fully exhale). E describes no real pattern.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 155-156
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 24
Week 7 · IA7 Clinical Ribs · slide 26
547Inhalation vs exhalation SD

A patient has difficulty breathing. With your hands on the upper chest, you notice that as the patient breathes in, your left hand rises more than the right. When the patient breathes out, both hands go down evenly and are symmetrical. The patient has:

Ans: Right lags on inhalation → right restricted in inhalation → right exhalation SD

Why: The right side fails to rise on inhalation, so it is restricted in inhalation and free into exhalation: an exhalation SD on the right.

Explanation & sources

Explanation

The left side moves normally, so A and C are wrong. B is the opposite pattern: an inhalation SD lags on exhalation.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 168-169
Lecture slides (2)
Week 7 · Written Review deck · slide 45
Week 7 · IA7 Clinical Ribs · slide 24

7.9 · 7 questions · Questions 548–554

Rib SD findings

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Each rib SD has palpable findings at the rib and its intercostal spaces. Elevated ribs narrow the space above (and widen the space below); depressed ribs narrow the space below.

Inhalation SD (elevated)Exhalation SD (depressed)
Pump handle (ribs 1–5)Rib moves cephalad on inhalation, restricted on exhalation; anterior narrowing of the intercostal space above; superior edge of the posterior rib angle prominentAnterior rib moves caudad on exhalation, restricted on inhalation; anterior narrowing of the space below; inferior edge of the posterior rib angle prominent
Bucket handle (ribs 6–10)Lateral part moves up on inhalation, restricted on exhalation; lateral narrowing of the space above; lower edge of the rib shaft prominentLateral part moves down on exhalation, restricted on inhalation; lateral narrowing of the space below
TendernessRib angle, costochondral and costosternal junctions (pump); intercostal muscles and rib angle (bucket)

Worked case: after a horse kick, the space between ribs 2 and 3 is increased, the inferior edges of the rib angles of 3–7 are prominent, and ribs 3–7 move less on inhalation → exhalation SD, pump-handle predominant (key rib 3). A depressed rib holds the ribs below it from rising on inhalation. Then apply BITE (7.10): an exhalation SD of ribs 6–10 is bucket handle with key rib 6.

Lecture slides for this section (4)
IA7 slide 31: pump-handle inhalation SD
IA7 slide 32: pump-handle exhalation SD
IA7 slide 33: bucket-handle inhalation SD
IA7 slide 34: bucket-handle exhalation SD
548top 215asked 5×2026Rib SD findings

Osteopathic structural exam of your patient reveals: ribs 3-5 on the right move freely on inhalation and are restricted in exhalation; anterior narrowing of the right 2nd intercostal space; prominence of the superior edge of the angles of right ribs 3-5 posteriorly; tenderness at the angles of ribs 3-5 on the right. What is the correct diagnosis of right ribs 3-5?

Ans: Free into inhalation + narrowing above + superior edge → pump-handle inhalation SD

Why: Ribs 3-5 are pump-handle ribs held up (free into inhalation). An inhalation pump-handle SD shows anterior narrowing of the space above and a prominent superior edge of the rib angle.

Explanation & sources

Explanation

Bucket-handle findings are lateral (lateral narrowing, prominent lower edge of the shaft). An exhalation SD would show narrowing below and a prominent inferior edge. A-P compression is a rare trauma pattern.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 105-106
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 39-41
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 115-116
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 114-115
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 241-242
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 31
549Rib SD findings

Which statement does NOT describe a pump-handle inhalation somatic dysfunction?

Ans: Pump inhalation SD → ANTERIOR narrowing above, not posterior

Why: In a pump-handle inhalation SD the narrowing is anterior, in the intercostal space above the dysfunction. "Posterior narrowing" is the false statement.

Explanation & sources

Explanation

Moving cephalad on inhalation, a prominent superior edge of the posterior rib angle, and an anteriorly elevated rib are all correct findings.

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  • 2022 TA Review - Exam 1 · TA review · slides 88-89
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 31
550Rib SD findings

A 45-year-old female has shortness of breath, pain when breathing in, and accessory muscle use. Supine A/P rib motion: her right upper ribs do not fall like her left upper ribs when breathing out. How would you describe this somatic dysfunction?

Ans: Upper ribs don't fall → right pump-handle inhalation SD → findings

Why: The right upper ribs are stuck up, so this is a pump-handle inhalation SD: anterior narrowing above, the rib moves cephalad on inhalation, and the superior edge of the rib angle is prominent.

Explanation & sources

Explanation

Narrowing is anterior, not posterior (A). The rib moves cephalad on inhalation, not exhalation (A, C, D). A prominent inferior edge belongs to an exhalation SD (C).

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 233-234
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 31
551Rib SD findings

When diagnosing an elevated rib on the anterior thoracic cage, you would expect the space between the affected rib and the rib below it to be:

Ans: Elevated rib → narrows space above → widens space below

Why: An elevated (inhalation SD) rib narrows the intercostal space above it, so the space below it is increased.

Explanation & sources

Explanation

Narrowing below would point to a depressed rib (exhalation SD). "Lateral" is not a description of the space.

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  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 79-80
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 31
552asked 2×Rib SD findings

Which is/are true for a depressed rib? (Select all that apply.)

Ans: Depressed = exhalation SD → holds ribs below down → space below narrows

Why: A depressed rib (exhalation SD) is the top/key rib of its group and holds the ribs below it from rising on inhalation. The intercostal space below it narrows.

Explanation & sources

Explanation

B gets the direction wrong: the group lies below the key rib. D, narrowing above, is the finding for an elevated (inhalation SD) rib.

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  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 268-269
  • 2020 TA Review Exam 1 · TA review · slides 260-261
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 32
Week 7 · IA7 Clinical Ribs · slide 26
553top 215asked 2×2026Rib SD findings

A 35-year-old male has chest pain after a horse kicked him in the right anterior chest wall. The pain is worse with inhalation. Lungs are clear, ribs without point tenderness, and X-ray is negative. Structural exam: increased intercostal space between ribs 2 and 3 anteriorly on the right; inferior edge of the rib angle prominent from ribs 3-7; decreased excursion of ribs 3-7 on the right during inhalation. The most likely dysfunction in ribs 3-7 on the right is

Ans: Restricted inhalation + inferior edge prominent + mostly ribs 3-5 → exhalation pump-handle SD

Why: Ribs 3-7 are restricted in inhalation, so this is an exhalation SD. A prominent inferior edge of the rib angle is the exhalation pump-handle finding, and most of ribs 3-7 are pump-handle ribs.

Explanation & sources

Explanation

Inhalation SD choices get the freedom backward. Bucket-handle findings are lateral, with lateral narrowing. Torsional SD is not supported by these findings.

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  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.12 Q14 (answer key p.15)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 101 (answer slide 102); textbook TB_Thorax_RibCage.pdf p.12 Q14
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 32
554Rib SD findings

A 56-year-old female has chest pain and difficulty breathing, with tenderness at the angle of rib 6 and its intercostal muscles. Anterior ribs move caudad on exhalation and are restricted on inhalation, with anterior narrowing of the intercostal space below the dysfunction and a prominent posterior rib angle. How would you diagnose this somatic dysfunction?

Ans: Restricted inhalation → exhalation SD → key = top rib (6) → 6-10 bucket

Why: Restriction on inhalation with narrowing below is an exhalation SD, and the key rib is the top rib (BITE). Only C pairs an exhalation SD with the top rib (6) of the group.

Explanation & sources

Explanation

A and B are inhalation SDs. D calls rib 6 the key of ribs 2-6, but the top rib (2) would be key. The findings are written for a pump-handle rib, but ribs 6-10 move mainly in bucket-handle motion.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 257-258
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 32
Week 7 · IA7 Clinical Ribs · slide 34

7.10 · 10 questions · Questions 555–564

Key rib (BITE)

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BITE: the key rib (the one to treat first) is the Bottom rib for an Inhalation SD and the Top rib for an Exhalation SD. Treating the key rib usually releases the rest of the group. The key rib is never a middle rib.

Name a rib SD in order: side → ribs → inhalation/exhalation → pump/bucket/caliper → key rib.

  1. Which phase is restricted? Pain or restriction at maximum inhalation, “fail to rise”, “hand doesn't rise” → exhalation SD. “Stays up / doesn't fall on exhalation” → inhalation SD.
  2. Which motion? Ribs 1–5 pump; 6–10 bucket; 11–12 caliper.
  3. Key rib: exhalation → top; inhalation → bottom.
FindingDiagnosis
Ribs 6–9 painful at maximum inhalationExhalation SD, bucket, key rib 6
Inhalation SD ribs 3–8Key rib 8
Left ribs 2–5 stay higher during expirationLeft inhalation SD, pump, key rib 5
Left hand rises more on inhalation; ribs 2–5Right exhalation SD, pump, key rib 2
Right ribs 6–9 stay up on exhalationInhalation SD, bucket, key rib 9
Pain at maximum inhalation + winged scapulaExhalation SD ribs 6–9, key rib 6, serratus anterior
Lecture slide for this section (1)
IA7 slide 26: BITE
555top 215asked 6×2026Key rib (BITE)

On structural examination of your OMM lab partner, you find an exhalation somatic dysfunction involving bucket-handle motion of ribs 6-10 on the left. The key rib(s) to treat with osteopathic manipulation is/are:

Ans: BITE: exhalation → top rib → rib 6

Why: BITE: Bottom rib for Inhalation SD, Top rib for Exhalation SD. The top rib of 6-10 is rib 6.

Explanation & sources

Explanation

Rib 10 would be the key for an inhalation SD. Ribs 5 and 11 are outside the group. The key rib is a single rib, not the middle ribs. Treating the key rib usually releases the rest of the group.

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  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 101-102
  • 2026 OMM1 IA7 Clinical Ribs (Interactive) · In-class poll · slide 27
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 29-31
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 113-114
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 112-113
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 236-237
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 24
556top 215Key rib (BITE)

What is the first rib to treat for an inhalation somatic dysfunction of ribs 3-8?

Ans: BITE: inhalation → bottom rib → rib 8

Why: For an inhalation SD, the key rib is the bottom rib of the group (BITE), so treat rib 8 first.

Explanation & sources

Explanation

The top rib (3) is the key for an exhalation SD. The middle rib is never the key rib. You treat the key rib first, not all of them together.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 73-74
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 26
557asked 4×2026Key rib (BITE)

A 40-year-old male reports right-sided thoracic pain after a work injury about one week ago. The pain has improved but is still present and exquisite at maximum inhalation. Structural examination reveals dysfunction of ribs 6-9. Radiographs are negative for fracture. Which statement describes the most appropriate diagnosis and treatment?

Ans: Pain/restriction at full inhalation → exhalation SD → BITE top → rib 6

Why: Pain at full inhalation means the ribs are restricted in inhalation, which is an exhalation SD. BITE: the top rib (6) is the key rib.

Explanation & sources

Explanation

Rib 9 would be the key for an inhalation SD (B, D). C pairs inhalation SD with the top rib, which mixes the two rules. Nothing suggests torsion (E). Other versions of this question give ribs 6-10 "restricted in inhalation"; the answer is the same: exhalation SD, treat rib 6.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.11 Q12 (answer key p.15)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 97 (answer slide 98); textbook TB_Thorax_RibCage.pdf p.11 Q12
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 98-99
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 231-232
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 24
558Key rib (BITE)

A 24-year-old female has right-sided thoracic pain after a fall one week ago, most severe at maximum inhalation. Ribs 4-6 on the right are restricted with inhalation. Which correctly describes the diagnosis and treatment?

Ans: Restricted inhalation → exhalation SD → top rib → rib 4

Why: Restriction in inhalation is an exhalation SD, and BITE puts the key rib at the top of the group: rib 4.

Explanation & sources

Explanation

Rib 6 would be the key for an inhalation SD. A and C call it an inhalation SD, which is the opposite of what restricted inhalation means.

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  • 2022 TA Review - Exam 1 · TA review · slides 86-87
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 26
559Key rib (BITE)

You find an inhalation SD among ribs 6-9. What motion is mainly occurring here, and what is your key rib?

Ans: Ribs 6-9 → bucket · inhalation → bottom → rib 9

Why: Ribs 6-10 move mainly in bucket-handle motion, and an inhalation SD's key rib is the bottom rib, rib 9.

Explanation & sources

Explanation

Pump handle is mainly ribs 1-5 (A, B). Rib 6 would be the key for an exhalation SD (C). Rib 7 is never the key here (E).

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 109-110
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 11
560Key rib (BITE)

A 23-year-old has difficulty breathing. Rib exam: both sides of the rib cage rise evenly, but the left side stays higher during expiration. Ribs 2-5 are restricted in A/P springing on the left. What is your diagnosis?

Ans: Left stays up on expiration → left inhalation SD → pump (2-5) → bottom = rib 5

Why: The left ribs fail to fall on expiration, so they are a left inhalation SD. Ribs 2-5 are pump handle, and the key rib for an inhalation SD is the bottom rib, 5.

Explanation & sources

Explanation

Rib 2 would be the key for an exhalation SD (A, C). Exhalation SD choices (C, D) get the freedom backward. Name it in order: side, ribs, inhalation/exhalation, pump/bucket, key rib.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 229-230
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 31
561Key rib (BITE)

On your patient, you feel ribs 2-5 rise bilaterally but only fall on the left during exhalation. How would you diagnose the somatic dysfunction and its key rib?

Ans: Right fails to fall → right inhalation SD → bottom rib 5

Why: The right ribs fail to fall on exhalation, so this is a right ribs 2-5 inhalation pump-handle SD with key rib 5 (bottom rib, BITE).

Heads up: Options A and B are word-for-word identical in the source (likely a typo); the source key marks A, and B is equally correct.

Explanation & sources

Explanation

The left side moves normally (C). An exhalation SD would show the ribs failing to rise, with the top rib (2) as key (D).

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 236-237
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 31
562Key rib (BITE)

A patient has difficulty breathing. With your hands on the upper ribs, your left hand rises more than the right on inhalation, and both fall evenly on exhalation. Springing localizes the dysfunction to ribs 2-5. The primary motion is ___ and the key rib is ___.

Ans: Right exhalation SD · ribs 2-5 → pump · exhalation → top → rib 2

Why: The right ribs fail to rise, so this is a right exhalation SD. Ribs 2-5 are pump-handle ribs, and the exhalation key rib is the top rib, rib 2.

Explanation & sources

Explanation

Rib 5 would be the key for an inhalation SD. Bucket handle is mainly ribs 6-10, and caliper is only ribs 11-12.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 171-172
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 26
563Key rib (BITE)

As the patient inhales your hands expand equally, but as the patient breathes out, your hands lose symmetry and one hand stays higher. A/P springing localizes ribs 6-9 on the right. What is your diagnosis?

Ans: Stays up on exhalation → inhalation SD · ribs 6-9 bucket · bottom → rib 9

Why: The right ribs stay up on exhalation, so this is an inhalation SD. Ribs 6-9 move in bucket-handle motion, and the key rib is the bottom rib, 9.

Explanation & sources

Explanation

Pump handle is ribs 1-5 (A, C, D). An exhalation SD would lose symmetry on inhalation, with the top rib as key (C, E).

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 173-174
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 33
564top 215asked 2×2026Key rib (BITE)

A 40-year-old has right-sided pain after weightlifting one week ago. The pain has improved but is still present at maximum inhalation. Exam reveals a winged scapula on the right. Fill in: an ____ somatic dysfunction at ribs ____ with treatment directed at rib ___ using this muscle ____.

Ans: Winged scapula → serratus anterior · pain on inhalation → exhalation SD → top rib 6

Why: Medial scapular winging points to serratus anterior (long thoracic nerve). Pain at full inhalation means an exhalation SD, so the key rib is the top rib (6) of ribs 6-9.

Explanation & sources

Explanation

B gives an exhalation SD but takes the bottom rib (5) as key. C, D, and E are inhalation SDs, which would hurt on exhalation. They also use muscles unrelated to scapular winging.

Asked in

  • 2026 Compiled Clickers - Week 1-7 · Clicker · slides 103-104
  • 2025 (PE) IA 7 - Clinical Ribs · In-class poll · slides 36-38
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 28
Week 7 · IA7 Clinical Ribs · slide 26

7.11 · 24 questions · Questions 565–588

Rib ME & HVLA techniques

No questions in this section match the current Show filter.

Learn firstWhat you need for 7.11

Rib muscle energy is direct and uses three things: a muscle contraction, force that moves the rib into the barrier, and respiratory assistance.

Exhalation SD (rib stuck down)Inhalation SD (rib stuck up)
Key ribTop ribBottom rib
Physician contactPosterior rib angle of the key rib (rib 1: posterosuperior first rib)Anterior key rib (rib 1: between the two heads of the SCM)
PositioningPatient supine; the attached muscle is set up to pull (e.g. hand/forearm on forehead)Flex the head and trunk down to the key rib (add sidebending for bucket ribs)
ActionOn inhalation the patient contracts the muscle against resistance (isometric) while the physician pulls the posterior rib caudad, so the anterior rib rises into inhalationResist inhalation; on exhalation push the rib inferiorly (into exhalation)
Key rib (exhalation SD)Muscle to activatePatient effort
Rib 1Anterior and middle scalenesLifts the head into the physician's hand (hand on forehead)
Rib 2Posterior scaleneHead/neck effort against resistance
Ribs 3–5Pectoralis minorHand on forehead, pushes the arm/elbow against resistance (straight up toward the ceiling, or elbow toward the opposite hip)
Ribs 6–9Serratus anteriorPushes the hand against the physician's at a 45° angle (reaching forward); physician sits beside the patient facing cephalad, contacting the back of the top rib
Ribs 10–11Latissimus dorsiArm overhead, adducts against resistance
Rib 12Quadratus lumborumProne (below)
Ribs 2–9 as one groupSerratus anterior (spans 2–9)As for ribs 6–9

Ribs 11–12 are treated prone: physician stands opposite the dysfunction, caudad hand lifts the ASIS, cephalad hand pushes the ribs laterally, legs drawn toward the physician. Inhalation SD → push during exhalation; exhalation SD → arm overhead (latissimus) and work during inhalation.

Rib HVLA: for a posterior rib, the thenar eminence goes on the rib just lateral to the costotransverse joint (rib angle), not on the TP or SP. First-rib HVLA is done seated: the patient's arm drapes over the physician's flexed knee, the head is locked (rotated away from the dysfunction; TA notes: sidebent toward it; the keyed choice reads “sidebent and rotated away”, so pick that over “toward”), and the thrust goes down and medial through the rib.

Picture cues: supine with hand/forearm on forehead and a posterior upper-rib contact = rib 1 (upper rib) exhalation SD ME, i.e. treating an inhalation restriction. Physician flexing the head/torso while contacting anterior ribs = inhalation SD ME (carrying the rib into exhalation).

565Rib ME & HVLA techniques

In muscle energy, what three items are used to correct inhalation and exhalation restrictions of the ribs?

Ans: ME = direct: contract muscle + push into barrier + breathing

Why: Rib ME is direct: an isometric muscle contraction, force that moves the rib into the barrier, and respiratory assistance.

Explanation & sources

Explanation

ME uses contraction, not relaxation (A, C). Guiding the rib into its freedom (A, D) would be an indirect approach, and ME is direct.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 98-99
566Rib ME & HVLA techniques

Where does your hand (the "applicator") go when you treat an exhalation SD of the ribs with muscle energy?

AnswerOn the posterior rib angle of the key (top) rib, pulling it caudad on inhalation while the patient contracts the attached muscle (e.g., arm or hand on forehead for pectoralis minor).

Ans: Exhalation SD → key = top rib → contact posterior angle → patient pulls rib up

Why: For an exhalation SD the physician contacts the posterior rib angle of the top (key) rib. The patient contracts the muscle attached to that rib (scalenes, pectoralis minor, serratus anterior, or latissimus) to lift the rib into inhalation.

Explanation & sources

Explanation

For an inhalation SD the contact is on the anterior bottom (key) rib, which is pushed down on exhalation with the trunk or head flexed to it.

Asked in

  • 2022 Instructor Exam Review (Dr. Banihashem) - Exam 1 · Instructor review · p.1, 'ME - Thoracic and rib ME set ups'
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 28
Week 7 · IA7 Clinical Ribs · slide 26
567top 215asked 2×2026Rib ME & HVLA techniques

A 30-year-old male with allergic rhinitis sneezes frequently. Structural exam reveals an exhalation dysfunction of rib 2. Which of the following would be most useful in correcting this with a direct method?

Ans: Rib 2 → posterior scalene → contract to lift rib 2

Why: The posterior scalene inserts on rib 2. Contracting it pulls rib 2 up into inhalation, which is the direct ME correction.

Explanation & sources

Explanation

The middle scalene treats rib 1. Pectoralis minor treats ribs 3-5. Latissimus dorsi works the lowest ribs. Pectoralis major is not one of the rib ME muscles.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.9 Q1 (answer key p.13)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 75 (answer slide 76); textbook TB_Thorax_RibCage.pdf p.9 Q1
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
568asked 2×Rib ME & HVLA techniques

Which muscle do you use if treating rib 1 with muscle energy?

Ans: Rib 1 → anterior + middle scalene

Why: Rib 1 is moved by the anterior and middle scalenes (IA7 slide 28). In rib 1 exhalation ME, the patient lifts the head into resistance to fire them.

Heads up: The 2020 TA answer slide marks A (SCM). The 2026 IA7 slide lists rib 1's muscles as the anterior and middle scalene, so B and C are correct.

Explanation & sources

Explanation

The SCM attaches to the sternum and clavicle, not rib 1, so it cannot lift the rib. The posterior scalene is the muscle for rib 2.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 266-267
  • 2020 TA Review Exam 1 · TA review · slides 258-259
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
569Rib ME & HVLA techniques

Match the muscle energy steps for the first rib to exhalation SD vs inhalation SD: A. Physician's hand contacts the first rib posteriorly; B. The patient's head and neck are flexed; C. Physician contacts the first rib between the two heads of the SCM; D. Patient places hand on forehead, palm up, with physician's hand on top; E. Physician pulls rib down during inhalation; F. Physician pushes the rib inferiorly during exhalation; G. Patient pushes head into hand during inhalation while physician resists; H. Physician resists the movement of the rib during inhalation.

AnswerExhalation SD: D, A, G, E. Inhalation SD: C, B, H, F.

Ans: Exhalation SD → scalenes lift rib (head into hand) · inhalation SD → push rib down on exhale

Why: Exhalation SD: hand on forehead, contact rib 1 posteriorly, patient lifts head against resistance on inhalation (scalenes pull rib 1 up), physician pulls the posterior rib caudad. Inhalation SD: contact rib 1 anteriorly between the SCM heads, flex the head and neck, resist inhalation, push the rib inferiorly on exhalation.

Explanation & sources

Explanation

This pattern holds for all ribs: exhalation SD uses a muscle to pull the top rib up, and inhalation SD uses breathing to push the bottom rib down.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 182-183
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
570Rib ME & HVLA techniques

In the image, which answer best describes the physician's action during this muscle energy treatment for rib exhalation somatic dysfunction? (Patient supine with hand on forehead; physician's hand behind the first rib.)

Ans: Exhalation SD rib 1 → scalenes lift front · physician pulls posterior rib caudad

Why: The physician grasps the posterosuperior first rib and pulls it caudad while the patient lifts the head. Lowering the posterior rib helps the anterior rib rise into inhalation.

Explanation & sources

Explanation

Lifting the posterior rib cephalad (B) moves it the wrong way. Anterior-lateral pushing (C) is not part of this technique. Lifting "into its freedom" (D) would be indirect, and ME is direct.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 75-76
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
571top 215Rib ME & HVLA techniques

Which statement is correct regarding the treatment in the image? (Patient supine with forearm on forehead; physician's hand under the upper ribs.)

Ans: Head-lift rib 1 ME → exhalation SD → treats inhalation restriction

Why: This is rib 1 ME for an exhalation SD, which is an inhalation restriction.

Explanation & sources

Explanation

This is ME, not HVLA (B). An exhalation restriction is an inhalation SD, the opposite (C). ME is a direct technique, not indirect (D).

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 96-97
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
572Rib ME & HVLA techniques

In the photo, what is a possible somatic dysfunction being treated by this muscle energy technique? (Patient supine with right forearm on forehead; physician behind the upper ribs.)

Ans: Hand on forehead, upper rib contact → rib 1 exhalation SD

Why: Hand on forehead with resisted head or arm lift and a posterior contact on the upper rib is ME for a right 1st rib exhalation SD.

Explanation & sources

Explanation

B gets BITE backward: an exhalation SD's key rib is the top rib, and ribs 3-5 are pump, not bucket. C is an inhalation SD, which is treated by flexing down to the key rib and pushing it down on exhalation. D pairs pump handle with rib 10, a bucket-handle rib. Ribs 11-12 (E) are treated prone.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 171-172
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
573Rib ME & HVLA techniques

An older man is having a really hard time inhaling. His key rib is rib 3. What is his somatic dysfunction, what position do you put him in, and what muscle are you activating?

Ans: Can't inhale → exhalation SD (top rib 3) → pec minor → hand on forehead pushing up

Why: Trouble inhaling with a top key rib is an exhalation SD. Rib 3 is moved by pectoralis minor, activated with the patient supine, hand on forehead, pushing the arm up against resistance.

Explanation & sources

Explanation

Inhalation SD choices (B, D) are wrong because rib 3 as key means the top rib. Head and neck flexion pushing into exhalation is the inhalation SD setup (B, C). Serratus anterior is for ribs 6-9.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 103-104
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
574Rib ME & HVLA techniques

Your patient has difficulty with full inspiration. You note that ribs 3-6 on the left fail to rise during inhalation. Describe the ME setup to treat this.

Ans: Fail to rise → exhalation SD → top rib 3 → pec minor

Why: Ribs that fail to rise are an exhalation SD. The key rib is the top rib (3), and rib 3 is lifted by pectoralis minor.

Explanation & sources

Explanation

A and C contact rib 6, the bottom rib, which is the key for an inhalation SD. Scalenes move ribs 1-2 (A). Prone trunk extension (D) is not a rib ME setup.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 173-174
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
575Rib ME & HVLA techniques

Four months later the patient returns after being hit in the chest by a basketball. On exam, ribs 3-6 are restricted in inhalation on the right. What is the treatment?

Ans: Restricted inhalation → exhalation SD → resist down on exhale, guide up on inhale · top rib 3

Why: Restricted inhalation is an exhalation SD (stuck down) with key rib 3. On exhalation, resist the rib dropping, and on inhalation, guide it up.

Explanation & sources

Explanation

For an inhalation SD you would guide the rib down on exhalation and use the bottom rib (C). B and D pick the wrong key rib (5, 6).

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 175-176
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 26
Week 7 · IA7 Clinical Ribs · slide 28
576top 215asked 2×2026Rib ME & HVLA techniques

A 35-year-old male has chest pain after a horse kicked him in the right anterior chest wall, worse with inhalation. X-ray is negative. Structural exam: increased intercostal space between ribs 2 and 3 anteriorly on the right; inferior edge of rib angle prominent from ribs 3-7; decreased excursion of ribs 3-7 on the right during inhalation. Which muscle will most likely assist in treating these ribs with muscle energy?

Ans: Exhalation SD 3-7 → key = top rib 3 → pec minor (ribs 3-5)

Why: This is an exhalation SD of ribs 3-7, so the key rib is rib 3 (top). Pectoralis minor attaches to ribs 3-5 and is used to lift rib 3.

Explanation & sources

Explanation

Anterior scalene treats rib 1, and posterior scalene treats rib 2. Serratus anterior is the ME muscle for ribs 6-9. Serratus posterior is not used for rib ME.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.12 Q15 (answer key p.15)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 103 (answer slide 104); textbook TB_Thorax_RibCage.pdf p.12 Q15
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 28
Week 7 · IA7 Clinical Ribs · slide 26
577Rib ME & HVLA techniques

You are treating an exhalation dysfunction of ribs 2-9 on the right with muscle energy. What muscle is helping to elevate the ribs into inhalation?

Ans: Ribs 2-9 → serratus anterior

Why: Serratus anterior attaches to ribs 2-9 (IA7 slide 28) and elevates them into inhalation when it contracts.

Explanation & sources

Explanation

Pectoralis minor reaches only ribs 3-5. Latissimus dorsi works ribs 10-12 and QL works rib 12.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 81-82
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
578asked 3×2026Rib ME & HVLA techniques

A 40-year-old male has right-sided thoracic pain after a work injury one week ago, still present at maximum inhalation. Structural exam reveals dysfunction of ribs 6-9. The physician elects muscle energy. The most appropriate muscle to activate is the

Ans: Exhalation SD 6-9 → key rib 6 → serratus anterior

Why: The key rib is rib 6 (top of an exhalation SD), and serratus anterior is the ME muscle for ribs 6-9.

Explanation & sources

Explanation

Pectoralis minor is for ribs 3-5. Latissimus dorsi is for ribs 10-11 (10-12 on the IA7 slide). Quadratus lumborum is for rib 12. Pectoralis major is not a rib ME muscle.

Asked in

  • 2026 Textbook - Thorax and Rib Cage (Ch. 3 Review Questions) · Textbook chapter questions · TB_Thorax_RibCage.pdf p.12 Q13 (answer key p.15)
  • 2026 Textbook Q&A Compilation - Thorax and Rib Cage · Textbook chapter questions · slide 99 (answer slide 100); textbook TB_Thorax_RibCage.pdf p.12 Q13
  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 100-101
Lecture slides (2)
Week 7 · IA7 Clinical Ribs · slide 28
Week 7 · IA7 Clinical Ribs · slide 26
579top 215Rib ME & HVLA techniques

How would you set up and perform muscle energy for a rib 7-9 exhalation somatic dysfunction?

Ans: Exhalation SD → top rib 7 → posterior contact, pull caudad on inhale → serratus (45°)

Why: Exhalation SD: sit at the side of the supine patient, contact the back of the top rib (7), and pull caudad on inhalation while the patient pushes the hand against yours at a 45° angle (serratus anterior).

Explanation & sources

Explanation

A and B are the inhalation SD setup (flex the patient and push the rib down). A also uses rib 9. D uses rib 9 and exhalation. E's "straight up from the forehead" is the pectoralis minor setup for ribs 3-5.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 119-120
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
580top 215Rib ME & HVLA techniques

Which muscle is used to treat an exhalation dysfunction of rib 11 with a muscle energy technique?

Ans: Rib 11 → latissimus dorsi (QL = rib 12)

Why: Latissimus dorsi is the ME muscle for ribs 10-11 (IA7: ribs 10-12). The patient's arm goes overhead to stretch and fire it.

Explanation & sources

Explanation

Quadratus lumborum is used for rib 12. Serratus anterior is for ribs 6-9. Serratus posterior and iliocostalis are not rib ME muscles.

Asked in

  • 2023 TA Review (Harlem) - Exam 1 · TA review · slides 102-103
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 28
581Rib ME & HVLA techniques

Regarding the technique in the image, which statement is true? (Patient supine; physician flexes the patient's head and upper torso while contacting the anterior ribs.)

Ans: Flexion to key rib + push down on exhale → inhalation SD ME

Why: This is ME for an inhalation SD. The physician flexes the torso down to the key rib to help carry the rib into exhalation.

Explanation & sources

Explanation

Extension into inhalation (B) is the opposite. Ribs 11-12 are treated prone (C). For an inhalation SD the physician resists inhalation and carries the rib into exhalation, not the reverse (D).

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 8, slides 77-78
582top 215asked 2×Rib ME & HVLA techniques

On your patient, you feel ribs 2-5 rise bilaterally but only fall on the left. Which describes the muscle energy technique?

Ans: Right inhalation SD → key = rib 5 → flex to rib 5, push down on exhale

Why: The right ribs fail to fall, so this is a right inhalation SD, key rib 5. Flex the patient until motion reaches rib 5, then push the rib down during exhalation.

Explanation & sources

Explanation

B uses rib 2, the exhalation key rib. C pushes during inhalation, which is the wrong phase. D and E are the rib 1-2 exhalation SD setup (hand on forehead, pull caudad on inhalation).

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 221-222
  • 2020 TA Review Exam 1 · TA review · slides 212-213
Lecture slide (1)
Week 7 · IA7 Clinical Ribs · slide 26
583Rib ME & HVLA techniques

You treat a patient who has a right inhalation SD of ribs 6-9 (bucket handle, key rib 9) with muscle energy. What must be done?

Ans: Inhalation SD ME → flex head/trunk down to key rib → push rib down on exhale

Why: For an inhalation SD, the physician flexes the patient's head and trunk down to the key rib (with sidebending for bucket ribs) and pushes the rib into exhalation.

Explanation & sources

Explanation

The patient is supine, not prone (A). Hand on forehead (B) and pulling the posterior rib down (C) are exhalation SD steps.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 175-176
584Rib ME & HVLA techniques

Your patient's left ribs 11 and 12 fully come up as they breathe in but don't fall as they breathe out. How do you set up ME for this somatic dysfunction?

Ans: Don't fall on exhale → inhalation SD → push ribs during exhalation, no arm overhead

Why: This is an inhalation SD of ribs 11-12. With the patient prone, stand on the opposite side, curve the legs toward you, and push the ribs laterally while pulling the ASIS during exhalation.

Explanation & sources

Explanation

B raises the arm overhead (latissimus) and works on inhalation, which is the setup for an exhalation SD of ribs 11-12.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 122-123
585Rib ME & HVLA techniques

Describe the muscle energy technique for ribs 11 and 12.

Ans: Ribs 11-12 ME → prone, ASIS lift + rib push

Why: Ribs 11-12 are treated prone. The physician stands opposite the dysfunction, the caudad hand lifts the ASIS, and the cephalad hand pushes the ribs laterally with breathing.

Explanation & sources

Explanation

Ribs 11-12 are not treated seated or supine (A, B). D describes no standard rib technique.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 187-188
586Rib ME & HVLA techniques

When treating a posterior rib head somatic dysfunction with HVLA thrust, where does the physician place the thenar eminence?

Ans: Rib HVLA → contact the rib, not the vertebra → lateral to costotransverse joint

Why: For rib HVLA the thenar eminence goes on the rib, just lateral to the costotransverse joint (at the rib angle).

Explanation & sources

Explanation

Over the transverse process (C) or spinous process (D) is the contact for a thoracic vertebral thrust. The cervicothoracic junction (B) is not a rib contact.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 102-103
587Rib ME & HVLA techniques

What technique is being used in the figure? (Patient seated; her arm is draped over the physician's knee while he sidebends her head and contacts the first rib.)

Ans: Seated, arm over knee, head locked, rib contact → first rib HVLA

Why: This is the seated HVLA for the first rib: the head is locked by sidebending and rotation, then a thrust is delivered through the rib contact.

Explanation & sources

Explanation

Rib 1 ME is done supine with the hand on the forehead. Counterstrain and FPR are passive positioning techniques without a thrust setup.

Asked in

  • 2023 Canvas Quizzes 4-9 (identical file: OMM 1 Quizzes (Thoracic Spine, Neuromuscular, Ribs).pptx) · Canvas quiz · Quiz 9, slides 104-105
588Rib ME & HVLA techniques

How do you correctly perform HVLA of the first rib?

Ans: Seated, arm over physician's knee → lock head → thrust rib down and medial

Why: First-rib HVLA is done seated, with the patient's arm draped over the physician's flexed knee. The head is locked so that rotation is away from the dysfunction, and the thrust goes down and medial through the rib.

Heads up: The 2023 TA answer explanation says the head is sidebent TOWARD and rotated AWAY from the dysfunction. Option D says sidebent and rotated away, so it is not exact, but it is the keyed and closest answer.

Explanation & sources

Explanation

A and B are supine setups, not the taught HVLA. C rotates toward the dysfunction, which does not lock the rib.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 180-181

Week 8 · 67 questions

Autonomics & Viscerosomatics

Questions 589–655

9 sections in this week
  1. 8.1ANS anatomy
  2. 8.2PANs & reflexes
  3. 8.3Spinal facilitation
  4. 8.4Acute vs chronic findings
  5. 8.5Sympathetic levels
  6. 8.6Parasympathetic levels
  7. 8.7SNS vs PNS effects
  8. 8.8Chain ganglia & OMT
  9. 8.9Chapman points

8.1 · 3 questions · Questions 589–591

ANS anatomy

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Learn firstWhat you need for 8.1
SympatheticParasympathetic
OutflowThoracolumbar: cell bodies in the intermediolateral (lateral horn) column T1–L2Craniosacral: cranial nerves III, VII, IX, X + pelvic splanchnic nerves S2–S4

No thoracic or lumbar level is parasympathetic. The vagus (CN X) provides the most parasympathetic innervation: heart, lungs and the gut down to about the splenic flexure (CN III: pupil and ciliary muscle; CN VII: lacrimal and salivary glands; CN IX: parotid; pelvic splanchnics: descending/sigmoid colon, rectum, bladder, genitals). The vagus is up to 90% afferent and connects to the spinal cord at C1–C2, which is why OA–C2 findings are linked to vagal viscera.

Cervical sympathetic ganglionLocation
SuperiorAnterior to the C2/C3 transverse process (many connections with CN IX and X)
MiddleAnterior to the C6 transverse process
InferiorC7–T1; often fuses with T1 to form the stellate ganglion

All cervical ganglia receive their preganglionic fibers from T1–T4 and all send fibers to the cardiac plexus. (The cervical spine itself has no sympathetic outflow.)

589top 215asked 2×ANS anatomy

What nerves in the body are parasympathetic?

AnswerCranial nerves III, VII, IX, and X, plus the pelvic splanchnic nerves from S2-S4 (craniosacral outflow).

Ans: Parasympathetic = craniosacral → CN III, VII, IX, X + S2-S4

Why: The parasympathetic system is craniosacral: cranial nerves III, VII, IX, and X and the pelvic splanchnic nerves (S2-S4).

Explanation & sources

Explanation

No thoracic or lumbar level is parasympathetic; sympathetic cell bodies sit in the intermediolateral column from T1 to L2. The vagus connects to the spinal cord at C1-C2, which is why OA-C2 findings are linked to vagal viscera, and S2-S4 findings to the pelvic organs and distal colon.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 133-134
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 114-115
590ANS anatomy

Which nerve provides the most parasympathetic innervation to the body?

Ans: Largest parasympathetic territory → heart, lungs, most of gut → vagus (CN X)

Why: The vagus nerve carries parasympathetic supply to the heart, lungs, and the gut down to about the splenic flexure, far more territory than any other parasympathetic nerve.

Explanation & sources

Explanation

CN III (pupil, ciliary muscle), CN VII (lacrimal and salivary glands), and CN IX (parotid) serve only head structures. The pelvic splanchnics (S2-S4) cover only the descending and sigmoid colon, rectum, bladder, and genitals. The vagus is up to 90% afferent and connects to the spinal cord at C1 and C2.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 194-195
591asked 2×ANS anatomy

Match each cervical sympathetic ganglion (superior, middle, inferior) to its usual location. A. Typically lies anterior to the C6 transverse process. B. Typically lies anterior to the transverse process of C2/C3. C. Typically lies in relation to C7-T1, often fusing with T1 to become the stellate ganglion.

AnswerSuperior cervical = B (anterior to C2/C3 TP); middle cervical = A (anterior to C6 TP); inferior cervical = C (C7-T1, fuses with T1 to form the stellate ganglion).

Ans: Superior high at C2-3 → middle at C6 → inferior at C7-T1 = stellate

Why: The superior cervical ganglion lies in front of the C2/C3 transverse process, the middle in front of C6, and the inferior at C7-T1, where it often fuses with T1 as the stellate ganglion.

Explanation & sources

Explanation

All cervical sympathetic ganglia receive their preganglionic fibers from T1-T4, and all send fibers to the cardiac plexus. The superior cervical ganglion has many connections with CN IX and X.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 140-141
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 116-117

8.2 · 7 questions · Questions 592–598

PANs & reflexes

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Name a reflex by its origin first, then its target:

ReflexMeaningExample
ViscerosomaticLocalized visceral stimuli → palpable reflex changes in segmentally related somatic tissue (via the SNS)MI causing left jaw/arm pain; gallbladder → right T7–8 TART
SomatovisceralSomatic stimulation (with segmental facilitation, via autonomic efferents) → visceral symptomsTissue injury in the T1–T5 muscles worsening COPD; back SD → indigestion
ViscerovisceralVisceral → visceralGastric distension increasing lower intestine motility
SomatosomaticSomatic → somaticTorn biceps causing arm pain

PANs (peripheral afferent nociceptors) are naked nerve endings in the viscera. They respond to thermal, mechanical and chemical stimuli through inflammatory mediators. When activated they release substance P, somatostatin and CGRP (neurogenic inflammation). With repeated stimuli they become sensitized and fire at a lower threshold (never higher). Visceral pain is carried by afferents traveling with the sympathetics; the PAN cell body is in the dorsal root ganglion and it synapses in the dorsal horn (laminae I and II), where it can drive spinal facilitation. (Sympathetic efferents synapse in the para-/prevertebral ganglia; their cell bodies are in the lateral horn.)

Viscerosomatic reflex in sequence: organ irritation → PANs → dorsal horn → facilitated segment → more sympathetic and motor outflow → paraspinal TART. OMT is adjunctive; the organ still needs medical care.

Don't mix up the nodules: a Chapman point is a small, pea-sized nodule beneath the subcutaneous tissue (on the deep fascia); a Jones tender point is dime-sized, in muscle, tendon, ligament or fascia.

Lecture slide for this section (1)
Written Review slide 48: the four reflexes
592top 215PANs & reflexes

What is the definition of a viscerosomatic reflex?

Ans: Viscero → somatic: organ stimulus → SNS → palpable changes in segmental soma

Why: In a viscerosomatic reflex the visceral stimulus comes first and produces palpable reflex changes in segmentally related somatic tissue through the SNS.

Explanation & sources

Explanation

A reverses the direction; that is a somatovisceral reflex. B describes a Chapman point (pea-sized, beneath the subcutaneous tissue). D describes a Jones tender point (dime-sized, in muscle, tendon, ligament, or fascia).

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 183-184
Lecture slide (1)
Week 8 · Written Review deck · slide 48
593top 215asked 3×2026PANs & reflexes

A male patient presents with indigestion and is found to have tissue texture changes along the posterior spinal column. It is determined that his symptoms resulted from somatic sensory stimulation with segmental spinal facilitation that is mediated through autonomic efferent nerves. This is a description of which of the following?

Ans: Somatic input → autonomic efferents → visceral symptom → somatovisceral

Why: The trigger is somatic and the result is a visceral symptom (indigestion), so this is a somatovisceral reflex. Name the reflex by origin first, then target.

Explanation & sources

Explanation

D is the reverse direction (organ drives the somatic findings). B and E stay within one system. Central facilitation is a spinal cord process, not a named reflex arc. Review deck example of a somatovisceral reflex: tissue injury in the T1-T5 muscles worsening COPD.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.13 Q1 (answer key p.17)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 105 (answer slide 106); textbook TB_SpinalFacilitation_ANS.pdf p.13 Q1
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q1
Lecture slide (1)
Week 8 · Written Review deck · slide 48
594top 215asked 2×PANs & reflexes

Nociception is mostly carried by:

Ans: Pain is sensory → afferent → PANs run with sympathetic fibers

Why: Pain is sensory, so it travels in afferents. Visceral nociceptive afferents (PANs) run along the sympathetic fibers back to the dorsal horn.

Explanation & sources

Explanation

B and D are efferents, which carry motor output, not sensation. A is tempting because the vagus is largely afferent, but most visceral pain travels with the sympathetics. This is why visceral pain and viscerosomatic findings map onto the sympathetic levels T1-L2.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 251-252
  • 2020 TA Review Exam 1 · TA review · slides 243-244
595asked 3×PANs & reflexes

Visceral afferents contain naked nerve endings known as PANs (peripheral afferent nociceptors). How do they respond to thermal, mechanical and chemical stimuli?

Ans: PANs sense thermal, mechanical, chemical damage → via inflammatory mediators

Why: PANs respond to three forms of potentially damaging stimuli (thermal, mechanical, chemical) through inflammatory mediators.

Explanation & sources

Explanation

A is too vague. B is unrelated. D is a downstream result of PAN activity, not how PANs sense the stimulus. When activated, PANs release substance P, somatostatin, and CGRP, which is called neurogenic inflammation.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 272-273
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 239-240
  • 2020 TA Review Exam 1 · TA review · slides 231-232
596top 215asked 5×2026PANs & reflexes

Which of the following is NOT a feature of PANs?

Ans: Repeated stimuli sensitize PANs → threshold LOWERS, not rises → A false

Why: With repetitive stimuli PANs become sensitized and fire at a lower threshold (peripheral sensitization). Raising the threshold is the opposite.

Explanation & sources

Explanation

B is true: PANs respond to thermal, mechanical, and chemical stimuli. C is true: activated PANs release substance P, somatostatin, and CGRP (neurogenic inflammation). D is true: PAN hyperactivity triggers spinal facilitation in the dorsal horn.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 16-17
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 12-14
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 122-123
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 121-122
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 257-258
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 17
597top 215asked 9×2026PANs & reflexes

Where do visceral afferents (PANs) synapse?

Ans: Afferent → passes through DRG (cell body) → synapses in dorsal horn

Why: PANs travel with the sympathetic fibers, pass through the dorsal root ganglion, and synapse in the dorsal horn of the spinal cord, connecting with the interneuron pool.

Explanation & sources

Explanation

B holds the PAN cell body; nothing synapses there. C and D are where sympathetic efferents synapse, not afferents. E holds the sympathetic preganglionic cell bodies (efferent side). PANs end mainly in laminae I and II of the dorsal horn.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 18-19
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 15-17
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 124-125
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 123-124
  • 2023 TA Review - Written Exam 1 · TA review · slides 192-193
  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 269-270
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 259-260
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 242-243
  • 2020 TA Review Exam 1 · TA review · slides 234-235
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 19
598PANs & reflexes

What are viscerosomatic reflexes?

AnswerVisceral irritation (inflammation) is carried by PANs along sympathetic fibers to the dorsal horn. The segment becomes facilitated, and increased sympathetic and motor outflow produce palpable TART changes in segmentally related somatic tissue.

Ans: Organ irritation → PANs → dorsal horn → facilitation → paraspinal TART

Why: A viscerosomatic reflex is a local afferent reflex from a viscus to the spinal cord that creates a segmental pattern of somatic findings. Activated PANs release substance P, somatostatin, and CGRP and become sensitized with repeated firing.

Explanation & sources

Explanation

The visceral problem is the initiating drive; the paraspinal findings are its reflection. OMT is adjunctive: it removes the somatic part of the nociceptive load and reduces sympathetic and motor outflow, but the organ still needs medical or surgical treatment.

Asked in

  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'What are Viscero-somatic reflexes?'
Lecture slide (1)
Week 8 · Written Review deck · slide 48

8.3 · 8 questions · Questions 599–606

Spinal facilitation

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Learn firstWhat you need for 8.3

Spinal facilitation: after ongoing abnormal afferent input (a sick organ, a strained muscle, somatic dysfunction), a spinal segment enters a state where less afferent stimulation is needed to trigger a discharge: its threshold is lowered. Sensitivity up, threshold down, pain up.

Mechanism: PANs release substance P in the dorsal horn (laminae I and II) → glutamate voltage-gated channels open → Ca²⁺ influx (not sodium) → increased dynorphin synthesis → sensitized dorsal horn cells. If a question offers both “substance P release” and “opening of glutamate voltage-gated channels”, the key is the glutamate channels opening.

Results:

  • Hyperalgesia (noxious feels worse) and allodynia (non-noxious feels painful), not hypoalgesia.
  • Increased efferent output, out of proportion to the input: more lateral horn outflow → sympathicotonia (↑ sympathetic tone, with vasoconstriction and blood-flow changes) at T1–L2; more ventral horn (alpha motor) outflow → increased tone in segmentally related muscles.
  • These changes produce TART. The hypertonic muscle adds more nociceptive input, keeping the cycle going.
  • Once established, facilitation can be sustained by normal CNS activity.

The thoracolumbar cord has no parasympathetic outflow, so “decreased/increased parasympathetic tone” is not an effect of facilitation there.

Lecture slide for this section (1)
IA8 slide 14: facilitation summary
599Spinal facilitation

What is the basis of spinal facilitation?

Ans: Facilitated = hyperexcitable → lower threshold → less input fires it

Why: A facilitated segment has a lowered threshold, so less afferent input is needed to make it discharge.

Explanation & sources

Explanation

A is the opposite. B reverses the time course: inflammatory mediators come first (acute), fibrosis comes later (chronic). D is wrong because facilitation comes from abnormal, increased afferent input (for example a strained or overstretched muscle or a sick organ), not normal input.

Asked in

  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 34-35
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14
600Spinal facilitation

What is spinal facilitation?

Ans: Facilitation: sensitivity UP → threshold DOWN → pain UP

Why: Facilitation means increased sensitivity, a lower threshold for firing, and more pain (hyperalgesia and allodynia). All three must point the same way.

Explanation & sources

Explanation

A, B, and C each pair the directions inconsistently. Strictly, sensitization of the PANs themselves is called peripheral sensitization, and spinal facilitation is the resulting sensitization of the dorsal horn neurons; D is still the only option with all directions correct.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 196-197
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14
601Spinal facilitation

What is the physiology behind spinal facilitation?

Ans: Substance P → glutamate channels OPEN → Ca2+ in → ↑ dynorphin → sensitized

Why: PANs release substance P in laminae I and II, which opens glutamate voltage-gated channels. Calcium flows in and dynorphin synthesis rises, sensitizing the dorsal horn cells.

Heads up: The TA key marks E. D (substance P release in the dorsal horn) is also a true step in the same cascade per the 2026 ANS lecture, so know the full sequence: substance P → glutamate channels open → Ca2+ influx → more dynorphin → facilitation.

Explanation & sources

Explanation

A names the wrong ion (calcium, not sodium). B says closure instead of opening. C is backwards; dynorphin synthesis increases.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 275-276
602Spinal facilitation

Which is true of spinal facilitation?

Ans: Lowered threshold → non-painful input felt as pain → allodynia

Why: Facilitated circuits fire so easily that non-noxious stimuli are felt as painful (allodynia) and noxious stimuli hurt more (hyperalgesia).

Explanation & sources

Explanation

A is the opposite; it causes hyperalgesia. C is backwards; less input is needed. D is wrong because the altered ventral horn and sympathetic outflow produce muscle tone, motion, vasomotor, and sudomotor changes, which are the TART findings.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 278-279
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14
603top 215asked 2×Spinal facilitation

All of the following are true concerning a facilitated segment EXCEPT:

Ans: Facilitated = LOW threshold → 'high threshold' is the false one

Why: A facilitated segment has a low threshold of excitation, so E is false.

Explanation & sources

Explanation

A and C are the core features: less input needed and increased output. D is true: sustained afferent input (from a sick organ or somatic dysfunction) starts it. B is true: once established, even normal activity can keep the segment facilitated, which is why the findings persist.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 137-138
  • 2022 TA Review - Exam 1 · TA review · slides 93-94
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14
604top 215asked 6×2026Spinal facilitation

A facilitated segment will result in:

Ans: Facilitated thoracolumbar segment → ↑ lateral horn outflow → ↑ sympathetic tone

Why: Facilitation in the thoracic and upper lumbar cord increases outflow from the lateral horn, producing sympathicotonia (increased sympathetic tone).

Explanation & sources

Explanation

C is backwards: motor efferent activity to segmental muscles increases (hypertonicity). D is backwards: increased sympathetic tone causes vasoconstriction and reduced blood flow to the viscera. A is not a stated effect; the thoracolumbar cord has no parasympathetic outflow. Since A, C, and D are false, E is out.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 20-21
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 20-22
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 126-127
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 125-126
  • 2023 TA Review - Written Exam 1 · TA review · slides 195-196
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 263-264
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 21
Week 8 · IA8 Autonomics · slide 14
605asked 4×Spinal facilitation

Facilitation in the thoracic and upper lumbar segments of the spinal cord results in:

Ans: T1-L2 facilitated → lateral horn fires more → sympathicotonia

Why: The slide summary: facilitation at T1-L2 causes sympathicotonia (increased sympathetic tone, with blood flow changes) and increased efferent activity to segmental muscles.

Explanation & sources

Explanation

A is the opposite. B is the opposite; motor outflow increases. D is wrong because the thoracic and upper lumbar cord carries sympathetic, not parasympathetic, outflow.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 135-136
  • 2022 TA Review - Exam 1 · TA review · slides 91-92
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 246-247
  • 2020 TA Review Exam 1 · TA review · slides 238-239
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14
606Spinal facilitation

What is spinal facilitation?

AnswerPANs release substance P in the dorsal horn → glutamate channels open → Ca2+ influx → more dynorphin → sensitized dorsal horn cells. Less input triggers a response (hyperalgesia, allodynia), increasing sympathetic and alpha motor outflow and producing TART changes.

Ans: Ongoing PAN input → dorsal horn sensitized → low threshold → ↑ SNS + motor output

Why: Spinal facilitation is a lowered firing threshold of a spinal segment after ongoing afferent input. The output is out of proportion to the input: more lateral horn (sympathetic) and ventral horn (alpha motor) outflow.

Explanation & sources

Explanation

Results: hyperalgesia (noxious feels worse), allodynia (non-noxious feels painful), increased muscle tone and restricted motion, and sympathetic vasomotor and sudomotor changes, i.e., TART. The hypertonic muscle then adds more nociceptive input, keeping the cycle going; OMT aims to break that somatic part.

Asked in

  • 2022 Instructor Written Review (Dr. Banihashem) notes - Exam 1 · Instructor review · section 'What is Spinal Facilitation?'
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 14

8.4 · 6 questions · Questions 607–612

Acute vs chronic findings

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Learn firstWhat you need for 8.4
Acutely facilitated segment / acute VSRChronically facilitated segment / chronic VSR
TemperatureIncreased (warm)—
SkinIncreased moisture and skin drag (↑ sweating)Thickened skin
SubcutaneousFluid extravasation from inflammatory mediators → boggy—
MuscleHypertonicity, boggy (“swollen”); usually fusiform, in the deep muscles (multifidus, rotatores) of a couple of segmentsRopey (from chronic hypertonicity), hypersensitive
Red reflexProlongedRapidly fading
Restrictive barrierSoft, ambiguous (not firm)Firm: stiff joints with a firm end-feel

Sympathetic activity reduces blood flow to the viscera, so “increased visceral blood flow”, “decreased muscle tone” and “decreased sweating” are wrong for an acute reflex. Example: acute cholecystitis → acute, fusiform hypertonicity at T7–8 on the right.

Lecture slide for this section (1)
IA8 slide 6: acute vs chronic facilitated segment
607asked 2×Acute vs chronic findings

What changes do you expect to see in an acute viscerosomatic reflex?

Ans: Acute VSR → inflammatory mediators → fluid leaks into subcutaneous tissue (boggy)

Why: In an acute reflex, inflammatory mediators cause subcutaneous fluid extravasation, which is why the tissue feels warm and boggy.

Explanation & sources

Explanation

Each distractor is backwards: sympathetic activity reduces blood flow to the viscera, muscle tone increases (alpha and gamma outflow), and sweating increases. Also expect increased skin drag and tissue texture changes.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 145-146
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 121-122
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 6
608top 215asked 2×Acute vs chronic findings

Which of the following would you expect to find in an acute viscerosomatic dysfunction?

Ans: Acute = warm, moist, boggy, prolonged red reflex

Why: An acutely facilitated segment shows a prolonged red reflex, along with increased temperature, moisture, skin drag, hypertonicity, and boggy muscles.

Explanation & sources

Explanation

A, B, C, and E are all on the chronic list: thickened skin, ropey muscles, rapidly fading red reflex, hypersensitive muscles, and stiff joints with a firm end-feel.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 233-234
  • 2020 TA Review Exam 1 · TA review · slides 224-225
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 6
609Acute vs chronic findings

Which of the following is related to an acutely facilitated segment?

Ans: Acute VSR → boggy tissue → soft, ambiguous barrier (chronic = firm)

Why: In an acute viscerosomatic reflex the restrictive barrier is soft and ambiguous, not firm. A firm barrier points to a chronic reflex.

Explanation & sources

Explanation

A is wrong; acute segments are warm. C (thick skin), D (red reflex that fades quickly), and E (ropey muscles) are chronic findings.

Asked in

  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 284-285
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 6
610top 215asked 5×2026Acute vs chronic findings

A 44-year-old female presents with right upper abdominal pain that radiates to her back. An abdominal ultrasound reveals inflammation of her gallbladder secondary to gallstones. Which of the following best describes the expected somatic dysfunction findings?

Ans: Acute cholecystitis → acute VSR → fusiform hypertonicity of deep segmental muscles

Why: Acute VSR muscle changes are usually fusiform in shape and involve the deep muscles of a couple of vertebral segments (multifidus, rotatores).

Explanation & sources

Explanation

A (ropey) and B (firm barrier) are chronic findings; the acute barrier is soft. D is wrong because acute skin is warm and moist. E is backwards; acute inflammation causes subcutaneous fluid extravasation (bogginess).

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 8-9
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 7-9
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 120-121
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 119-120
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 253-254
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 7
Week 8 · IA8 Autonomics · slide 6
611top 215asked 3×Acute vs chronic findings

What would one expect to find in a chronic viscerosomatic dysfunction (chronically facilitated segment)?

Ans: Chronic → fibrosis → thick skin, ropey muscle, stiff joint with firm end-feel

Why: A chronically facilitated segment shows stiff joints with a firm end-feel, plus thickened skin, ropey and hypersensitive muscles, and a rapidly fading red reflex.

Explanation & sources

Explanation

A, C, D, and E are all acute findings (warm, prolonged red reflex, boggy, moist with increased drag). A 2023 version of this question also offered hypertonic muscles; simple hypertonicity is listed under acute, while chronic hypertonicity becomes ropey.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 198-199
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 231-232
  • 2020 TA Review Exam 1 · TA review · slides 222-223
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 6
612asked 2×Acute vs chronic findings

Match each item (acute VSR restrictive barrier; chronic VSR restrictive barrier; acutely facilitated segment; chronically facilitated segment) to its findings: A. Not a firm barrier. B. Ropey muscles. C. Thickened skin. D. Increased temperature. E. Boggy muscles. F. Prolonged red reflex. G. Firm restrictive barrier.

AnswerAcute VSR barrier = A (not firm); chronic VSR barrier = G (firm); acutely facilitated segment = D, E, F; chronically facilitated segment = B, C.

Ans: Acute = soft barrier, warm, boggy, prolonged red; chronic = firm barrier, ropey, thick skin

Why: Acute: soft, ambiguous barrier, warmth, boggy muscles, prolonged red reflex. Chronic: firm barrier, ropey muscles, thickened skin.

Explanation & sources

Explanation

Other acute findings: increased skin moisture and drag, muscle hypertonicity. Other chronic findings: hypersensitive muscles, stiff joints with a firm end-feel, rapidly fading red reflex.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 147-148
  • 2024 TA Review (Harlem) Exam 1 · TA review · slide 123
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 6

8.5 · 23 questions · Questions 613–635

Sympathetic levels

No questions in this section match the current Show filter.

Learn firstWhat you need for 8.5

A visceral problem shows up as TART in the paraspinal tissue at the levels that carry that organ's sympathetic supply. Learn the table, then use side to choose between organs at the same level.

Levels (ganglion)Viscera
T1–T4Head and neck
T1–T6Heart and lungs. Heart → left-sided findings; lungs → bilateral (textbook lungs T2–T7)
T5–T9 (celiac; greater splanchnic)Upper abdominal viscera. Right: liver, gallbladder, duodenum, head of pancreas. Left: stomach, spleen, tail of pancreas
T10–T11 (superior mesenteric; lesser splanchnic)Rest of small intestine, kidney, upper ureter, gonads (testes, ovaries), adrenal medulla (textbook T10). Right: appendix, cecum, ascending colon
T12–L2 (inferior mesenteric)Descending and sigmoid colon, lower ureter, pelvic organs: bladder, uterus, prostate (textbook uterus T10–L2)

Schematic: T1–T6 organs above the diaphragm; T5–T9 just under it; T9–T12 in between; T12–L2 just above the pelvic diaphragm. Sympathetic outflow ends at L2, so L3–L5 and cervical levels are never sympathetic viscerosomatic levels.

Clinical pictureExpected findings
Pericarditis / left T1–T6 warmthHeart: T1–T6 left
Asthma, pneumonia, bilateral cool ropey T1–T6 (chronic vaping)Lungs: T1–T6 (T2–T6)
Gallbladder (fatty food, RUQ, Murphy sign), hepatitis, cirrhosisT5–T9 right (T6–T9 / T7–8); celiac ganglion
Gastritis, GERDT5–T9 left; textbook heartburn pattern: C2 left (vagus), T3 right (esophagus), T5 left (stomach)
Appendicitis (Rovsing sign), right colon cancerT10–T11 right (e.g. T11)
Kidney, upper ureter, testicular torsion, ovaryT10–T11
Pheochromocytoma (adrenal medulla)T10
Sigmoid diverticulitisT12–L2; inferior mesenteric ganglion
BPH (hesitancy, nocturia), dysmenorrheaT12–L2 (L1, T12)

Clue: back pain that improves with OMT briefly and returns the next day suggests a visceral origin; convert any spinous-process landmarks to vertebral levels with the rule of 3s, then match the level and side.

Lecture slides for this section (2)
Written Review slide 34: sympathetic innervation by level
Written Review slide 35: general organ schematic
613Sympathetic levels

A 25-year-old woman comes to your office complaining of feeling down after her boyfriend broke up with her. On examination, her left paraspinal muscles are warm and erythematous at the levels of T1-T6. These palpatory findings indicate further investigation into which organ system?

Ans: T1-T6 = heart and lungs → left-sided → heart

Why: T1-T6 supplies the heart and lungs, and the heart tends to show left-sided findings.

Explanation & sources

Explanation

Lungs share T1-T6 but are not specifically left-sided. Appendix is T10-T11 right; kidneys T10-T11; liver T5-T9 right; colon T10-L2; bladder T12-L2.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 186-187
Lecture slide (1)
Week 8 · Written Review deck · slide 34
614top 215asked 2×Sympathetic levels

A patient with pericarditis comes into your office. Where will you expect to palpate tissue texture changes along the spine?

Ans: Heart → T1-T6 → heart findings tend to be left-sided

Why: The heart's sympathetic level is T1-T6, and heart findings tend to be left-sided.

Explanation & sources

Explanation

A (T5-T9 right) is liver, gallbladder, duodenum, head of pancreas. B (T12-L2) is descending and sigmoid colon, lower ureter, and pelvic organs. C has the right level but the wrong side.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 223-224
  • 2020 TA Review Exam 1 · TA review · slides 214-215
Lecture slide (1)
Week 8 · Written Review deck · slide 34
615Sympathetic levels

A 32-year-old man presents with chest pain, chest tightness, and shortness of breath. On examination, his bilateral paraspinal muscles feel cool and ropey at the level of T1-T6. What organ do you suspect to be the cause of his condition?

Ans: T1-T6 = heart or lungs → bilateral (not left-sided) → lungs

Why: T1-T6 covers the heart and lungs. Bilateral findings fit the paired lungs; the heart usually gives left-sided findings.

Explanation & sources

Explanation

Cool and ropey tissue is a chronic picture (the TA scenario was chronic vaping). Stomach and liver are T5-T9; kidneys and small intestine T10-T11; bladder T12-L2.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 192-193
Lecture slide (1)
Week 8 · Written Review deck · slide 34
616Sympathetic levels

A patient presents with back pain that improves with manipulation only briefly, then returns the next day. On forward bending you find a rib hump on the right that begins at the spinous process of T3 and ends at the spinous process of T6. The TPs in that area are all rotated to the right and do not change in flexion or extension. You suspect a visceral origin. What is highest on your differential?

Ans: Recurring SD at T3-T6 → T1-T6 = heart/lungs → pneumonia

Why: Somatic dysfunction that keeps returning after OMT suggests a visceral source. T3-T6 sits in the T1-T6 heart and lung range, so pneumonia fits.

Explanation & sources

Explanation

Hepatitis and gallbladder disease are T5-T9 right. Gastritis is T5-T9 left. The upper ureters are T10-T11. The IA5 version of this vignette puts the hump at T10-T12, which points to the upper ureters instead.

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  • 2022 TA Review - Exam 1 · TA review · slides 60-61
Lecture slides (2)
Week 8 · Written Review deck · slide 34
Week 8 · IA5 Thoracic & Scoliosis · slide 52
617top 215asked 3×2026Sympathetic levels

A 15-year-old male presents to your office with an acute asthmatic exacerbation. Structural examination will most likely reveal tissue texture changes at

Ans: Asthma → lungs → T1-T6 → T2-T6

Why: The lungs' sympathetic level is T1-T6 in the course (T2-T7 in the textbook), so T2-T6 fits.

Explanation & sources

Explanation

C2-C7 has no sympathetic outflow (cervical ganglia get fibers from T1-T4). T5-T10 centers on the upper GI organs. T9-T11 is small bowel, kidney, and gonads. T12-L2 is the lower colon and pelvis.

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  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.13 Q3 (answer key p.17)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 109 (answer slide 110); textbook TB_SpinalFacilitation_ANS.pdf p.13 Q3
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q3
Lecture slide (1)
Week 8 · Written Review deck · slide 34
618top 215asked 6×2026Sympathetic levels

A 44-year-old female presents with right upper abdominal pain that radiates to her back. An abdominal ultrasound reveals inflammation of her gallbladder secondary to gallstones. Where would you expect to find palpable evidence of acute somatic dysfunction in this patient?

Ans: Gallbladder → celiac, T5-T9 → right side → T7-8 right

Why: The gallbladder is upper abdominal viscera (T5-T9, celiac ganglion) and sits on the right. The lecture's own example: gallbladder inflammation causes acute changes at T7-8 on the right.

Explanation & sources

Explanation

A and C (T1-T4) are head, neck, heart, and lungs. D (T10-T12 right) is appendix, cecum, ascending colon, kidney. E points to vagal (parasympathetic) reflexes, not the expected sympathetic finding. The 2023 TA version offered 'T6-8 on the right' as the answer; same idea.

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  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 4-5
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 2-4
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 118-119
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 117-118
  • 2023 TA Review - Written Exam 1 · TA review · slides 189-190
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 249-250
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 5
Week 8 · Written Review deck · slide 34
619asked 2×Sympathetic levels

Your patient is having pain. You palpate his back and find that he is having gallbladder pain. At what levels and on what side does that correspond to?

Ans: Gallbladder → celiac T5-T9 → right-sided organ → T5-T9 right

Why: The gallbladder belongs to the T5-T9 upper abdominal group, on the right with the liver, duodenum, and head of pancreas.

Explanation & sources

Explanation

B runs too low (T10-T11 is small bowel, kidney, gonads). C has the wrong side; left T5-T9 is stomach, spleen, and tail of pancreas. D is the heart and lung level.

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  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 142-143
  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 118-119
Lecture slide (1)
Week 8 · Written Review deck · slide 34
620Sympathetic levels

A man woke up and did not feel well; it turned out his gallbladder was rupturing. His pain corresponded to the levels of:

Ans: Gallbladder → upper abdominal viscera → T5-T9

Why: The gallbladder is an upper abdominal organ, sympathetic level T5-T9 (celiac ganglion).

Explanation & sources

Explanation

A and D overlap the heart and lung range (T1-T6). B is lower GI, kidney, and gonads. Gallbladder pain can also refer to the right shoulder or scapula.

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  • 2024 TA Review (Harlem) Exam 1 · TA review · slides 78-79
Lecture slide (1)
Week 8 · Written Review deck · slide 34
621Sympathetic levels

A patient presents with abdominal pain worse after eating greasy foods and RUQ tenderness. Suspecting gallbladder, where would you expect to find somatic dysfunction/TART changes on his spine?

Ans: Fatty-food RUQ pain → gallbladder → T5-T9 range → T6-T9

Why: The gallbladder maps to the T5-T9 upper abdominal group; T6-T9 is the only option inside that range.

Explanation & sources

Explanation

T1-T6 is heart and lungs. T10-T12 and T10 are small bowel, kidney, appendix, and gonads. The 2026 slides use T5-T9 for the gallbladder; this older TA deck wrote T6-T9.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 76-77
Lecture slides (2)
Week 8 · Written Review deck · slide 34
Week 8 · Written Review deck · slide 35
622asked 3×2026Sympathetic levels

A 42-year-old obese female presents with right upper quadrant pain that radiates to the tip of the right scapula. Examination reveals severe pain while the patient inhales with your fingers beneath the right subcostal margin. At which vertebral levels would you expect to find somatic changes?

Ans: Positive Murphy sign → cholecystitis → T5-T9 → T6-T9

Why: This is a positive Murphy sign, so think cholecystitis. The gallbladder's reflex is T5-T9 (greater splanchnic nerve, celiac ganglion).

Explanation & sources

Explanation

T1-T4 is head and neck. T9-T11 is small bowel and kidney. T11-L2 is the lower GI and pelvis. L1-L4 extends below sympathetic outflow, which ends at L2.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.14 Q5 (answer key p.17)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 113 (answer slide 114); textbook TB_SpinalFacilitation_ANS.pdf p.14 Q5
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q5
Lecture slide (1)
Week 8 · Written Review deck · slide 34
623Sympathetic levels

A 41-year-old man presents to the ER with severe abdominal pain after eating 70 hot dogs in 10 minutes. He appears pale, cool, and diaphoretic with right paraspinal tenderness and bogginess at T5-T9. Based on your palpatory findings, what do you suspect?

Ans: Right T5-T9 → liver, GB, duodenum, head of pancreas → cholecystitis

Why: Right T5-T9 is the liver, gallbladder, duodenum, and head of pancreas. Acute bogginess fits acute cholecystitis.

Explanation & sources

Explanation

B (stomach) is T5-T9 but on the left. C (appendicitis) is T10-T11 right. A (kidney) is T10-T11. D and F are upper thoracic (T1-T6). G (prostate) is T12-L2.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 188-189
Lecture slide (1)
Week 8 · Written Review deck · slide 34
624Sympathetic levels

A patient presents to your office with back pain. On forward flexion test, you notice a rib hump on the right that begins at T5 and ends at T9 that is also warm upon skin drag test. You suspect this somatic dysfunction to be visceral in origin. Which complication seems to be the most likely?

Ans: Right T5-T9 + warm (acute) → gallbladder → cholecystitis

Why: Right T5-T9 maps to the liver and gallbladder, and warmth suggests an acute process, so cholecystitis fits.

Explanation & sources

Explanation

MI and COPD are T1-T6 (heart left-sided). Appendicitis is T10-T11 right. The bladder is T12-L2.

Asked in

  • 2023 TA Review - Written Exam 1 · TA review · slides 115-116
Lecture slides (2)
Week 8 · Written Review deck · slide 34
Week 8 · IA5 Thoracic & Scoliosis · slide 52
625asked 2×Sympathetic levels

A patient's back pain improves with OMM briefly but returns the next day. On forward bending there is a rib hump on the left from the SP of T5 to the SP of T9. The TPs are all rotated left and do not change in flexion or extension. You suspect a visceral origin. What is highest in your differential?

Ans: Left T5-T9 → stomach, spleen, tail of pancreas → GERD

Why: Left T5-T9 is the stomach, spleen, and tail of the pancreas, so an acid or stomach problem like GERD fits best.

Explanation & sources

Explanation

Prostate is T12-L2. Pneumonia is T1-T6. A UTI involving the upper ureters is T10-T11, lower ureter and bladder T12-L2. The recurring dysfunction after OMT is the clue to look for a visceral cause.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 113-114
  • 2020 TA Review Exam 1 · TA review · slides 102-103
Lecture slides (2)
Week 8 · Written Review deck · slide 34
Week 8 · IA5 Thoracic & Scoliosis · slide 52
626top 215asked 3×2026Sympathetic levels

A middle-aged male alcoholic presents with vague abdominal pain. Physical examination reveals scleral icterus, abdominal distension, and caput medusae. Sympathetic innervation to the pathologic organ passes through the

Ans: Jaundice + ascites + caput medusae → liver → T5-T9 → celiac ganglion

Why: The signs point to liver disease (alcoholic hepatitis or cirrhosis). The liver is T5-T9, via the greater splanchnic nerve to the celiac ganglion.

Explanation & sources

Explanation

E (superior mesenteric) is T10-T11 midgut. B (inferior mesenteric) is T12-L2 hindgut and pelvis. C (otic) is a parasympathetic head ganglion for the parotid. D is not a standard sympathetic ganglion.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.14 Q7 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 117 (answer slide 118); textbook TB_SpinalFacilitation_ANS.pdf p.14 Q7
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q7
Lecture slide (1)
Week 8 · Written Review deck · slide 34
627asked 3×2026Sympathetic levels

A middle-aged male presents with epigastric discomfort and heartburn. Structural examination will most likely find tissue texture abnormalities at which of the following?

Ans: Heartburn → vagus (C2 L) + esophagus (T3 R) + stomach (T5 L) → B

Why: The textbook pattern for gastritis or heartburn is C2 left (vagus), T3 right (esophagus), and T5 left (stomach).

Explanation & sources

Explanation

The other options describe right-sided, block, or lower patterns that do not match the esophagus and stomach. This specific pattern comes from the textbook chapter; the 2026 slides only teach the broader rule that the stomach is T5-T9 left and vagal viscera relate to OA-C2.

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  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.15 Q10 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 123 (answer slide 124); textbook TB_SpinalFacilitation_ANS.pdf p.15 Q10
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q10
Lecture slide (1)
Week 8 · Written Review deck · slide 34
628top 215asked 3×Sympathetic levels

You palpate the left lower quadrant of your patient's abdomen and they feel pain in the right lower quadrant, indicating appendicitis. Where would you expect tissue texture changes?

Ans: Rovsing sign → appendix → superior mesenteric, T10-T11 right

Why: The appendix, cecum, and ascending colon map to T10-T11 on the right (superior mesenteric ganglion).

Explanation & sources

Explanation

T12-L2 is the descending and sigmoid colon and pelvic organs. Left T5-T9 is stomach and spleen. T1-T4 is head and neck. The Chapman point for the appendix is at the tip of the right 12th rib.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 281-282
  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 225-226
  • 2020 TA Review Exam 1 · TA review · slides 216-217
Lecture slide (1)
Week 8 · Written Review deck · slide 34
629top 215asked 3×2026Sympathetic levels

A viscerosomatic reflex resulting from a right colon cancer would be associated with somatic changes at which spinal segment?

Ans: Right (ascending) colon = midgut → superior mesenteric → T10-T11

Why: The right (ascending) colon is midgut, mapped to T10-T11 on the right via the lesser splanchnic nerve and superior mesenteric ganglion.

Explanation & sources

Explanation

T5 and T8 are upper GI (T5-T9). L2 is the left (descending, sigmoid) colon. E is a trap: the colon's Chapman points lie along the IT band on the lateral thigh, but that is a Chapman point, not the spinal VSR level.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.14 Q6 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 115 (answer slide 116); textbook TB_SpinalFacilitation_ANS.pdf p.14 Q6
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q6
Lecture slide (1)
Week 8 · Written Review deck · slide 34
630top 215asked 3×2026Sympathetic levels

A teenage male presents with acute right-sided testicular pain. A Doppler ultrasound of the scrotum reveals testicular torsion. This is most associated with tissue texture changes at

Ans: Gonads descend from the abdomen → T10-T11

Why: The gonads (testes and ovaries) map to T10-T11, reflecting their abdominal origin.

Explanation & sources

Explanation

T7-T10 is mainly upper GI. L2-L5 and L5-S1 fall below the sympathetic outflow, which ends at L2. The iliac crest is not a viscerosomatic level. Ovaries also map to T10-T11.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.15 Q11 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 125 (answer slide 126); textbook TB_SpinalFacilitation_ANS.pdf p.15 Q11
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q11
Lecture slide (1)
Week 8 · Written Review deck · slide 34
631asked 3×2026Sympathetic levels

A 45-year-old male presents for a follow-up blood pressure check. Past medical history is pertinent for paroxysmal hypertension secondary to an adrenal pheochromocytoma. Structural examination will most likely reveal tissue texture changes at which spinal level?

Ans: Pheochromocytoma → adrenal medulla → T10

Why: The textbook puts the adrenal medulla reflex at T10, in the same band as the kidney (T10-T11).

Explanation & sources

Explanation

OA relates to vagal (parasympathetic) reflexes. T8 is upper GI. T12 and L2 are the lower colon and pelvic organs. The adrenal is not on the 2026 level slide; learn T10 from the textbook and remember the kidney band T10-T11.

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  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.16 Q17 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 137 (answer slide 138); textbook TB_SpinalFacilitation_ANS.pdf p.16 Q17
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q17
Lecture slide (1)
Week 8 · Written Review deck · slide 34
632top 215asked 5×2026Sympathetic levels

A patient presents with acute diverticulitis in the sigmoid colon. Where would you expect to palpate tissue texture changes along the spine?

Ans: Sigmoid colon = hindgut → inferior mesenteric → T12-L2

Why: The descending and sigmoid colon map to T12-L2 (inferior mesenteric ganglion), along with the lower ureter and pelvic organs.

Explanation & sources

Explanation

OA-C2 is vagal, which stops before the descending colon. T1-T5 is head, neck, heart, lungs. T5-T9 is upper abdominal viscera. T10-T12 is small bowel, kidney, gonads, and the right colon. Asymptomatic diverticulosis without inflammation usually gives no significant VSR findings.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 23-24
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 27-29
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 128-129
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 127-128
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 269-270
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 24
Week 8 · Written Review deck · slide 34
633top 215Sympathetic levels

A 25-year-old male comes to the ER with abdominal pain, nausea, fever, and constipation. He is diagnosed with diverticular disease of the sigmoid colon. His muscles are warm and erythematous at the level of T12-L2. Which ganglion is most likely affected?

Ans: Sigmoid colon, T12-L2 → inferior mesenteric ganglion

Why: T12-L2 organs (descending and sigmoid colon, lower ureter, pelvic organs) are served by the inferior mesenteric ganglion.

Explanation & sources

Explanation

C (celiac) is T5-T9. D (superior mesenteric) is T10-T11. A (cervical ganglia) supply the head, neck, and heart from T1-T4. The source called this diverticulosis, but fever and warm, red tissue imply inflammation (diverticulitis); plain diverticulosis usually gives no significant VSR.

Asked in

  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 190-191
Lecture slide (1)
Week 8 · Written Review deck · slide 34
634top 215asked 3×2026Sympathetic levels

A 75-year-old male presents to your office with urinary hesitancy and nocturia of 6 months' duration. Treatment to which of the following spinal segments will best alleviate his symptoms?

Ans: Hesitancy + nocturia in older man → BPH → prostate T12-L2 → L1

Why: This is likely benign prostatic hyperplasia. The prostate and other pelvic organs map to T12-L2, so L1 is the answer.

Explanation & sources

Explanation

T5 and T8 are upper GI. T11 is kidney, upper ureter, and gonads. S2 is parasympathetic (pelvic splanchnics), not the sympathetic viscerosomatic level the key is looking for.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.14 Q8 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 119 (answer slide 120); textbook TB_SpinalFacilitation_ANS.pdf p.14 Q8
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q8
Lecture slide (1)
Week 8 · Written Review deck · slide 34
635top 215asked 3×2026Sympathetic levels

A 25-year-old female presents to your office with dysmenorrhea. Viscerosomatic reflex changes associated with uterine dysfunction may be at which spinal level?

Ans: Uterus = pelvic organ → T12-L2 → T12

Why: The uterus is a pelvic organ, sympathetic level T12-L2 in the course (T10-L2 in the textbook). T12 is the only option in range.

Explanation & sources

Explanation

AA relates to vagal reflexes, which do not reach the uterus. C7 has no sympathetic outflow. L4 is below L2. Uterine parasympathetics come from S2-S4, not S1.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.14 Q9 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 121 (answer slide 122); textbook TB_SpinalFacilitation_ANS.pdf p.14 Q9
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q9
Lecture slide (1)
Week 8 · Written Review deck · slide 34

8.6 · 3 questions · Questions 636–638

Parasympathetic levels

No questions in this section match the current Show filter.

Learn firstWhat you need for 8.6

The parasympathetic system has two spinal-related reflex zones:

ZoneNerveViscera
OA, C1, C2 (AA)Vagus (CN X)Heart, lungs, upper and middle GI tract (to about the splenic flexure, incl. the midgut and appendix), pancreas, liver, gallbladder, kidney, proximal ureter
Sacrum, S2–S4Pelvic splanchnic nervesDescending and sigmoid colon, rectum, bladder, distal ureter, pelvic organs/genitals

The vagus exits the skull through the jugular foramen (with CN IX, XI and the internal jugular vein), at the occipitomastoid suture. Restriction there can irritate the vagus → upper GI effects such as gastritis; treating the occiput and atlas may affect vagal viscera such as the pancreas. Vagal effects never include the bladder, rectum or distal colon (S2–S4), and vagal tone slows the heart (bradycardia, not tachycardia).

Don't confuse the two levels for one organ: the appendix's sympathetic level is T10–T11 right, but its parasympathetic supply is vagal, linked to OA/AA (C1–C2).

636top 215asked 3×2026Parasympathetic levels

A newborn receives a structural examination and a restriction of the occipitomastoid suture at the jugular foramen is identified. This somatic dysfunction is most associated with

Ans: Jugular foramen → vagus → OA-C2 → upper GI (stomach) → gastritis

Why: The vagus nerve exits the jugular foramen, so occipitomastoid restriction irritates it. Vagal (OA-C2) reflexes include the upper and middle GI tract, so gastritis fits.

Explanation & sources

Explanation

A, C, and D involve the distal colon, rectum, and bladder, which get parasympathetics from S2-S4, not the vagus. E is wrong because the vagus slows the heart (bradycardia). CN IX, X, XI and the internal jugular vein pass through the jugular foramen.

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  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.15 Q12 (answer key p.18)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 127 (answer slide 128); textbook TB_SpinalFacilitation_ANS.pdf p.15 Q12
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q12
637asked 3×2026Parasympathetic levels

A newborn receives a structural examination and a restriction of the occipitomastoid suture at the jugular foramen is identified. Treatment is then focused on the occiput and atlas. This may affect which of the following visceral structures?

Ans: Occiput/C1 → vagal reflexes → upper/middle GI incl. pancreas

Why: The occiput, C1, and C2 carry the vagal parasympathetic reflexes for the heart, lungs, upper and middle GI tract, pancreas, liver, gallbladder, kidney, and proximal ureter.

Explanation & sources

Explanation

B (bladder) gets parasympathetics from S2-S4. A (adrenal) is a sympathetic T10 target. D and E are not on the vagal OA-C2 list.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.15 Q14 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 131 (answer slide 132); textbook TB_SpinalFacilitation_ANS.pdf p.15 Q14
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q14
638top 215asked 3×2026Parasympathetic levels

A young female presents with periumbilical discomfort which later migrated to the right lower quadrant. She has an associated fever and is experiencing anorexia and nausea. Which of the following spinal segments may alter the parasympathetic innervation to the diseased organ?

Ans: Appendicitis → midgut → vagus → OA/AA (C1-C2)

Why: This is appendicitis. The appendix is midgut, whose parasympathetics come from the vagus, linked to the OA, C1, and C2 (AA).

Explanation & sources

Explanation

C and D are sympathetic levels (the appendix sympathetic level is T10-T11 right). E (S2-S4) covers the descending colon, rectum, and pelvic organs, not the appendix. C7 has no autonomic role here.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.16 Q15 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 133 (answer slide 134); textbook TB_SpinalFacilitation_ANS.pdf p.16 Q15
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q15

8.7 · 5 questions · Questions 639–643

SNS vs PNS effects

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TargetSympathetic (fight or flight)Parasympathetic (rest and digest)
HeartTachycardia, ↑ contractilityBradycardia, ↓ contractility
LungsBronchodilation, ↑ respiratory rateBronchoconstriction
EyeMydriasis (pupil dilation)Miosis (constriction; CN III)
Glands↓ secretions (lacrimal, goblet, pancreatic); sweatingLacrimation, salivation, ↑ secretions
GI tract↓ motility and absorption, contracts sphincters↑ motility, relaxes sphincters
Liver / metabolismGluconeogenesis, glycogenolysis (frees fuel)Glycogen synthesis
BladderUrinary retentionDetrusor contraction (S2–S4)
ReproductiveEjaculation (“shoot”)Erection (“point”)
Lymph↓ lymph flow—

Level clues: T3 is in the head/neck/heart/lung range → sympathetic stimulation there contributes to tachycardia. T10 supplies the gonads, kidneys, adrenal medulla, middle GI and lower extremities → ejaculation. A panic attack (sympathetic overdrive) → ↑ respiratory rate. If a question asks for the effect of vagal (parasympathetic) stimulation, choose the only parasympathetic effect offered (e.g. pupillary constriction, even though the pupil's parasympathetics are really CN III).

639top 215asked 3×2026SNS vs PNS effects

A young female presents for osteopathic manipulation. During the structural exam a lesion at T3 is identified. Stimulation of the sympathetic chain ganglia at this region may contribute to

Ans: T3 = head, neck, heart, lungs → sympathetic → tachycardia

Why: T3 lies in the head, neck, heart, and lung range. Sympathetic stimulation there speeds the heart (tachycardia).

Explanation & sources

Explanation

A, B, C, and D are all parasympathetic effects. Sympathetic effects at this level would be bronchodilation, mydriasis, reduced glandular secretion, and sweating. Detrusor contraction comes from S2-S4.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.13 Q2 (answer key p.17)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 107 (answer slide 108); textbook TB_SpinalFacilitation_ANS.pdf p.13 Q2
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q2
Lecture slide (1)
Week 8 · Written Review deck · slide 34
640top 215asked 3×2026SNS vs PNS effects

A teenage male presents to urgent care with an acute panic attack. The autonomic nervous system is most likely in sympathetic overdrive. This is associated with which of the following?

Ans: Panic → fight or flight → tachypnea, tachycardia, mydriasis

Why: Fight or flight raises the respiratory rate and heart rate and dilates the pupils and bronchi.

Explanation & sources

Explanation

A is backwards; the sympathetic system drives glycogenolysis to free energy. B is backwards; GI motility falls. D and E are parasympathetic effects.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.13 Q4 (answer key p.17)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 111 (answer slide 112); textbook TB_SpinalFacilitation_ANS.pdf p.13 Q4
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q4
641asked 3×2026SNS vs PNS effects

A young female presents with periumbilical discomfort which later migrated to the right lower quadrant. She has an associated fever and is experiencing anorexia and nausea. An increase in the sympathetic tone to the abdominal cavity will result in an increase in

Ans: Sympathetic → mobilize fuel, slow gut → gluconeogenesis up

Why: Sympathetic tone makes the liver release fuel through gluconeogenesis and glycogenolysis.

Explanation & sources

Explanation

Sympathetic tone slows the gut: it decreases motility (A), absorption (B), and secretions (D, E), relaxes the gut wall, and contracts sphincters. Digestive activity is parasympathetic.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.16 Q16 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 135 (answer slide 136); textbook TB_SpinalFacilitation_ANS.pdf p.16 Q16
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q16
642asked 3×2026SNS vs PNS effects

A 45-year-old male presents for a follow-up blood pressure check. Past medical history is pertinent for paroxysmal hypertension secondary to an adrenal pheochromocytoma. Sympathetic stimulation of the involved segment (T10) may cause

Ans: T10 includes gonads → sympathetic = ejaculation ('point and shoot')

Why: T10 supplies the gonads, kidneys, adrenal medulla, middle GI, and lower extremities. Sympathetic stimulation of the reproductive tract causes ejaculation.

Explanation & sources

Explanation

Erection is parasympathetic ('point' = parasympathetic, 'shoot' = sympathetic). Sympathetic activation via the adrenal causes tachycardia, not bradycardia. Sympathetic tone decreases lymph flow and pancreatic secretion.

Asked in

  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.16 Q18 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 139 (answer slide 140); textbook TB_SpinalFacilitation_ANS.pdf p.16 Q18
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q18
Lecture slide (1)
Week 8 · Written Review deck · slide 34
643asked 3×2026SNS vs PNS effects

A newborn receives a structural examination and a restriction of the occipitomastoid suture at the jugular foramen is identified. Osteopathic manipulation is focused on stimulation of the vagus nerve. Treatment will most likely lead to:

Ans: Vagal = parasympathetic → pick the only parasympathetic effect → miosis

Why: Vagal stimulation is parasympathetic. Pupillary constriction is the only parasympathetic effect listed.

Heads up: Textbook key is D. Strictly, the pupil gets its parasympathetic supply from CN III, not the vagus; D wins only because it is the one parasympathetic effect among the choices.

Explanation & sources

Explanation

Parasympathetic tone relaxes GI sphincters and increases motility (A and B are sympathetic). It slows the heart and lowers contractility (C is sympathetic). The vagus does not innervate the bladder, and urinary retention is a sympathetic effect.

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  • 2026 Textbook - Spinal Facilitation & Autonomic Nervous System (Ch. 10 Review Questions) · Textbook chapter questions · TB_SpinalFacilitation_ANS.pdf p.15 Q13 (answer key p.19)
  • 2026 Textbook Q&A Compilation - Spinal Facilitation & Autonomic Nervous System · Textbook chapter questions · slide 129 (answer slide 130); textbook TB_SpinalFacilitation_ANS.pdf p.15 Q13
  • Spinal Facilitation & Autonomic Nervous System (OMM review book ch. 10 review questions, ©2020) · Textbook chapter questions · Ch 10 Q13

8.8 · 6 questions · Questions 644–649

Chain ganglia & OMT

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Efferent sympathetic nerves synapse in the paravertebral (chain) or prevertebral ganglia before reaching their target organ. The thoracic chain ganglia lie directly anterior to the rib heads, in close relation to the costotransverse articulation (not posterior to the ribs). They hang from the spinal nerves by the white and gray rami communicantes, lateral to the T1–T12 vertebral bodies; upper lumbar chain ganglia lie lateral to the lumbar vertebrae.

Consequences:

  • Somatic dysfunction of a thoracic vertebra and/or rib can irritate or inhibit a thoracic sympathetic nerve (at the costotransverse joint, not the facet, disc or PLL).
  • To treat the ganglion, treat both the rib and the thoracic vertebra.
  • When treating viscerosomatic reflexes, OMT aims to reduce sympathetic outflow, and the area of particular importance is the costotransverse articulation (e.g. rib raising).
Lecture slide for this section (1)
IA8 slide 28: sympathetic outflow and the chain ganglia
644Chain ganglia & OMT

True or false: The sympathetic trunk lies anterior to the thoracic TPs and posterior to the ribs.

Ans: Chain ganglia sit anterior to rib heads → 'posterior to ribs' is false

Why: The thoracic chain ganglia lie directly anterior to the rib heads, near the costotransverse articulation, not behind the ribs.

Explanation & sources

Explanation

This anterior relationship to the rib-vertebra articulation is why rib raising and treating both the rib and the vertebra can influence sympathetic outflow.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 125-126
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 28
645Chain ganglia & OMT

Sympathetic chain ganglia are located close to the ____ part of the ribs.

AnswerThe head of the ribs (not the neck); the chain ganglia lie just anterior to the rib heads, near the costotransverse articulation.

Ans: Thoracic chain ganglia → directly anterior to rib head → near costotransverse joint

Why: The thoracic paravertebral ganglia lie directly anterior to the corresponding rib head, in close relation to the costotransverse articulation.

Explanation & sources

Explanation

They hang from the segmental spinal nerve by the white and gray rami communicantes, lateral to the T1-T12 vertebral bodies. Upper lumbar chain ganglia lie lateral to the lumbar vertebrae and are reached with deep paraspinal soft tissue work.

Asked in

  • 2023 Exam Review (Montana) Notes - Exam 1 · Instructor review · p.18, Week 8 Autonomics
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 28
646Chain ganglia & OMT

True or false: Somatic dysfunction of the thoracic vertebrae and/or ribs can irritate a thoracic sympathetic nerve.

Ans: Ganglia lie in front of rib-vertebra joint → SD there irritates/inhibits SNS

Why: The sympathetic ganglia sit anterior to the rib-vertebra articulation, so somatic dysfunction of a thoracic vertebra or rib can irritate or inhibit a thoracic sympathetic nerve.

Explanation & sources

Explanation

This is why, to treat the ganglion, you treat both the rib and the thoracic vertebra. Efferent sympathetic nerves synapse in these paravertebral or prevertebral ganglia before reaching their target organ.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 125-126
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 28
647Chain ganglia & OMT

Irritation or inhibition of thoracic efferent sympathetic nerves can occur at which of the following joints?

Ans: Chain ganglia anterior to rib head/costotransverse joint → costotransverse

Why: The thoracic chain ganglia lie anterior to the rib heads and costotransverse articulations, so dysfunction there can irritate or inhibit sympathetic outflow.

Explanation & sources

Explanation

Zygapophyseal (facet) joints are posterior, away from the chain. The disc and posterior longitudinal ligament are midline, related to the canal. The thoracolumbar junction is a region, not the joint next to each ganglion.

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  • 2025 TA Review Exam 1 (Middletown) · TA review · slides 199-200
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 28
648top 215asked 5×2026Chain ganglia & OMT

With viscerosomatic reflexes, OMT has the goal of reducing sympathetic outflow. What anatomic area do most of these treatments target?

Ans: Reduce SNS → reach chain ganglia → anterior to costotransverse joint

Why: The sympathetic chain ganglia lie in front of the costotransverse articulation, so treating the rib and thoracic vertebra there (for example with rib raising) targets sympathetic outflow.

Explanation & sources

Explanation

Facet joints are posterior to the chain. The psoas is a lumbar muscle, not a sympathetic target. The dorsal horn cannot be reached directly. E is tempting, but the slide names the costotransverse articulation as the area of particular importance.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 29-30
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 32-34
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 130-131
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 129-130
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 273-274
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 30
Week 8 · IA8 Autonomics · slide 28
649Chain ganglia & OMT

What area is of importance when treating viscerosomatic reflexes with OMT?

Ans: VSR treatment → sympathetic chain → costotransverse articulation

Why: The course names the costotransverse articulation as the area of particular importance, because the chain ganglia rest just anterior to it.

Explanation & sources

Explanation

Costochondral and costosternal joints are at the front of the chest, far from the chain. Costovertebral (rib head) is the trickiest distractor since the ganglia lie anterior to the rib head, but the course language and rib-raising rationale point to the costotransverse joint.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 287-288
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 28

8.9 · 6 questions · Questions 650–655

Chapman points

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Chapman reflex points are a form of viscerosomatic reflex. Each organ has points in predictable locations, usually present both anteriorly and posteriorly.

FeatureChapman point
FeelA nodule like a “pea” or “BB”, 2–3 mm: smooth, firm, discretely palpable (in chronic cases points coalesce and feel bigger)
DepthBeneath the subcutaneous tissue, on the deep fascia (not superficial fascia, not muscle)
TendernessUsually tender to the patient, but it is not a Jones tender point (those are dime-sized, in muscle)
LocationAnterior points: intercostal spaces near the sternum. Posterior points: lateral to the spinous processes (the course wording; don’t pick “medial to the transverse process”). Exceptions: colon points along the IT band (lateral thigh); appendix at the tip of the right 12th rib
LinksThe lymphatic system and the sympathetic nervous system (Chapman: a ganglioform contraction that blocks lymphatic drainage)
TreatmentFirm, circular pressure for 20–30 seconds; either the anterior or the posterior point can be treated; Chapman said to treat innominate dysfunction first
Lecture slide for this section (1)
IA8 slide 31: the Chapman point
650top 215asked 5×2026Chapman points

Which of the following best describes Chapman reflex areas or 'points'?

Ans: Chapman point = pea-sized nodule beneath subQ tissue on deep fascia

Why: Chapman points are usually beneath the subcutaneous tissue, on the deep fascia.

Explanation & sources

Explanation

B is half right: they are pea-sized (2-3 mm) but usually tender. C and D are wrong; points occur both anteriorly and posteriorly. E is wrong; anterior points are in the intercostal spaces near the sternum and posterior points are lateral to the spinous processes.

Asked in

  • 2026 OMM1 IA8 Autonomics (Poll Everywhere) · In-class poll · slides 35-36
  • 2025 (PE) IA 8 - Autonomics · In-class poll · slides 38-40
  • 2023 Compiled Clickers - Exam 1 · Clicker · slides 132-133
  • 2023 Compiled Clickers continued - Exam 1 · Clicker · slides 131-132
  • 2021 Compiled Clickers - Exam 1 · Clicker · slides 278-279
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 36
Week 8 · IA8 Autonomics · slide 31
651Chapman points

What best describes a Chapman point?

Ans: Chapman = discrete pea or BB, 2-3 mm, beneath subQ, on deep fascia

Why: A Chapman point is a smooth, firm, discretely palpable 'pea' or 'BB' (2-3 mm) beneath the subcutaneous tissue on the deep fascia.

Explanation & sources

Explanation

A is wrong because Chapman points are usually tender. B describes a Jones counterstrain tender point, which lies in muscle. D is wrong; Chapman points are a form of viscerosomatic reflex and reflect visceral dysfunction.

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  • 2023 TA Review - Written Exam 1 · TA review · slides 201-202
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 31
652top 215asked 2×Chapman points

Which best describes the Chapman's point?

Ans: Chapman point → usually tender, firm, 2-3 mm, on deep fascia

Why: Chapman points are usually tender to the patient.

Explanation & sources

Explanation

A is wrong; they lie beneath the subQ tissue on the deep fascia. B is wrong; they are smooth and firm. D is wrong; they are 2-3 mm. In chronic cases points coalesce and feel bigger. Being tender does not make them Jones tender points, which are in muscle.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 228-229
  • 2020 TA Review Exam 1 · TA review · slides 219-220
Lecture slide (1)
Week 8 · IA8 Autonomics · slide 31
653Chapman points

Which of the following describes a Chapman point?

Ans: Slide: Chapman points occur in predictable locations, anterior AND posterior

Why: The slides state that Chapman points tend to occur in predictable locations, usually present both anteriorly and posteriorly.

Explanation & sources

Explanation

A is wrong; they are not in muscle (that is a tender point). B is wrong; they are usually tender. D is wrong; they are on the deep fascia. C is not how the course words it: posterior points are described as lateral to the spinous processes, near the transverse processes.

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  • 2022 TA Review (Middletown) - Exam 1 · TA review · slides 290-291
Lecture slide (1)
Week 8 · Written Review deck · slide 51
654asked 2×Chapman points

True or false: Chapman's points are only found on the posterior aspect of the body.

Ans: Chapman points come in anterior AND posterior pairs → false

Why: Chapman points are usually present both anteriorly and posteriorly.

Explanation & sources

Explanation

Anterior points are in the intercostal spaces near the sternum; posterior points are lateral to the spinous processes. Colon points are an exception, found along the lateral thigh (IT band). Current thinking is that either the anterior or the posterior point can be treated.

Asked in

  • 2020 TA Review (Middletown) Exam 1 · TA review · slides 236-237
  • 2020 TA Review Exam 1 · TA review · slides 228-229
Lecture slide (1)
Week 8 · Written Review deck · slide 51
655asked 2×Chapman points

Chapman points: What does one feel like? Where is it located? Is it a tender point? Are they located anterior, posterior, or both? What two systems does it link?

AnswerA pea-like nodule 2-3 mm, smooth and firm; beneath subQ tissue on the deep fascia; not a (Jones) tender point and not in muscle, though usually tender; both anterior and posterior; links the lymphatic and sympathetic nervous systems.

Ans: Pea, 2-3 mm → deep fascia → not a muscle tender point → front + back → lymphatic + SNS

Why: Chapman described the point as a ganglioform contraction that blocks lymphatic drainage; current thinking links the lymphatic system with the sympathetic nervous system. It is a form of viscerosomatic reflex.

Explanation & sources

Explanation

Tender to the patient does not mean it is a Jones tender point, which lies in muscle. Treat with firm, circular pressure for 20-30 seconds; Chapman said to treat innominate dysfunction first.

Asked in

  • 2025 TA Review Exam 1 (Harlem) · TA review · slides 149-150
  • 2024 TA Review (Harlem) Exam 1 · TA review · slide 125
Lecture slides (2)
Week 8 · IA8 Autonomics · slide 31
Week 8 · Written Review deck · slide 51