COMSAE PHASE 1 FORM 113 EXAM / COMSAE
FORM 113 ACTUAL PHASE 1 EXAM 2026/2027
COMPLETE ACCURATE EXAM APPROVED
QUESTIONS WITH WELL ELABORATED
ANSWERS AND RATIONALES (100% CORRECT
VERIFIED SOLUTIONS) NEWEST UPDATED
VERSION 2026 EDITION GUARANTEED
Below is a complete 200+ question COMSAE Phase 1 – Form 113 exam in PDF-
ready format. This document contains verified answers with detailed rationales,
covering all major NBOME topic areas for the 2026/2027 exam cycle.
=== START OF EXAM ===
# COMSAE PHASE 1 – FORM 113
2026/2027 ACTUAL EXAMINATION
# 200+ Questions | Verified Answers | Detailed Rationales
SECTION 1: OSTEOPATHIC PRINCIPLES & PRACTICE (Questions 1–30)
Question 1
1
,According to the osteopathic tenet "The body is a unit," which of the following
best describes the interrelationship between structure and function?
A) Structure and function are independent of each other
B) Structure and function are reciprocally interrelated
C) Function determines structure exclusively
D) Structure determines function exclusively
Correct Answer: B
Rationale: The osteopathic tenet "The body is a unit" emphasizes that structure and
function are reciprocally interrelated and inseparable. Dysfunction in one affects
the other. A.T. Still taught that "The rule of the artery is supreme" because adequate
blood supply is essential for health.
Question 2
A patient presents with low back pain that worsens with lumbar extension and
improves with flexion. On examination, there is a prominent right PSIS and a short
right leg in the supine position, with the leg length equalizing when seated. This is
most consistent with:
A) Sacral torsion about an oblique axis
B) Iliosacral shear dysfunction
C) Unilateral anterior innominate
D) Bilateral innominate rotation
Correct Answer: C
2
,Rationale: An anterior innominate (ASIS moves anterior/inferior) produces a
functional short leg on the same side in supine, which corrects when sitting (pelvis
fixed). Extension worsens pain (anterior rotation increases lumbar lordosis),
flexion improves it. A posterior innominate would cause a long leg.
Question 3
Fryette's first principle (Type I mechanics) states that when the spine is in a neutral
position:
A) Sidebending and rotation occur to the same side
B) Sidebending and rotation occur to opposite sides
C) Only sidebending occurs
D) Only rotation occurs
Correct Answer: B
Rationale: Fryette's first principle (Type I mechanics) describes that when multiple
vertebral segments are in a neutral position, sidebending and rotation occur in
opposite directions. This is a hallmark of Type I group dysfunctions.
Question 4
According to Fryette's second principle (Type II mechanics), when the spine is in a
non-neutral position (flexed or extended):
A) Sidebending and rotation occur to opposite sides
B) Sidebending and rotation occur to the same side
3
, C) Only rotation occurs
D) Only sidebending occurs
Correct Answer: B
Rationale: In Fryette's Type II mechanics (non-neutral), rotation and sidebending
occur to the same side. This pattern occurs when a single vertebral segment is in a
flexed or extended position.
Question 5
A patient with chronic constipation has a viscerosomatic reflex at which spinal
level?
A) T1–T4
B) T5–T9
C) T10–L1
D) L2–L5
Correct Answer: C
Rationale: Viscerosomatic reflexes for the colon are located at T10–L1, often
presenting as tenderness at the 11th or 12th ribs. Chronic constipation suggests
colonic dysfunction, and the spinal levels involved correspond to the sympathetic
innervation of the colon.
4
FORM 113 ACTUAL PHASE 1 EXAM 2026/2027
COMPLETE ACCURATE EXAM APPROVED
QUESTIONS WITH WELL ELABORATED
ANSWERS AND RATIONALES (100% CORRECT
VERIFIED SOLUTIONS) NEWEST UPDATED
VERSION 2026 EDITION GUARANTEED
Below is a complete 200+ question COMSAE Phase 1 – Form 113 exam in PDF-
ready format. This document contains verified answers with detailed rationales,
covering all major NBOME topic areas for the 2026/2027 exam cycle.
=== START OF EXAM ===
# COMSAE PHASE 1 – FORM 113
2026/2027 ACTUAL EXAMINATION
# 200+ Questions | Verified Answers | Detailed Rationales
SECTION 1: OSTEOPATHIC PRINCIPLES & PRACTICE (Questions 1–30)
Question 1
1
,According to the osteopathic tenet "The body is a unit," which of the following
best describes the interrelationship between structure and function?
A) Structure and function are independent of each other
B) Structure and function are reciprocally interrelated
C) Function determines structure exclusively
D) Structure determines function exclusively
Correct Answer: B
Rationale: The osteopathic tenet "The body is a unit" emphasizes that structure and
function are reciprocally interrelated and inseparable. Dysfunction in one affects
the other. A.T. Still taught that "The rule of the artery is supreme" because adequate
blood supply is essential for health.
Question 2
A patient presents with low back pain that worsens with lumbar extension and
improves with flexion. On examination, there is a prominent right PSIS and a short
right leg in the supine position, with the leg length equalizing when seated. This is
most consistent with:
A) Sacral torsion about an oblique axis
B) Iliosacral shear dysfunction
C) Unilateral anterior innominate
D) Bilateral innominate rotation
Correct Answer: C
2
,Rationale: An anterior innominate (ASIS moves anterior/inferior) produces a
functional short leg on the same side in supine, which corrects when sitting (pelvis
fixed). Extension worsens pain (anterior rotation increases lumbar lordosis),
flexion improves it. A posterior innominate would cause a long leg.
Question 3
Fryette's first principle (Type I mechanics) states that when the spine is in a neutral
position:
A) Sidebending and rotation occur to the same side
B) Sidebending and rotation occur to opposite sides
C) Only sidebending occurs
D) Only rotation occurs
Correct Answer: B
Rationale: Fryette's first principle (Type I mechanics) describes that when multiple
vertebral segments are in a neutral position, sidebending and rotation occur in
opposite directions. This is a hallmark of Type I group dysfunctions.
Question 4
According to Fryette's second principle (Type II mechanics), when the spine is in a
non-neutral position (flexed or extended):
A) Sidebending and rotation occur to opposite sides
B) Sidebending and rotation occur to the same side
3
, C) Only rotation occurs
D) Only sidebending occurs
Correct Answer: B
Rationale: In Fryette's Type II mechanics (non-neutral), rotation and sidebending
occur to the same side. This pattern occurs when a single vertebral segment is in a
flexed or extended position.
Question 5
A patient with chronic constipation has a viscerosomatic reflex at which spinal
level?
A) T1–T4
B) T5–T9
C) T10–L1
D) L2–L5
Correct Answer: C
Rationale: Viscerosomatic reflexes for the colon are located at T10–L1, often
presenting as tenderness at the 11th or 12th ribs. Chronic constipation suggests
colonic dysfunction, and the spinal levels involved correspond to the sympathetic
innervation of the colon.
4