Anatomy NBME Shelf Review Latest 2026 Package
Deal| Different Versions with Complete Real Exam
Questions and Correct Detailed Answers (Verified
Answers) Already Graded A+
1. A 45-year-old man falls on his outstretched hand and
presents with wrist pain and swelling. Physical examination
reveals tenderness in the anatomical snuffbox. Which bone is
most likely fractured?
a) Scaphoid
b) Lunate
c) Triquetrum
d) Hamate
Correct Answer: a) Scaphoid
Rationale: The scaphoid bone lies in the floor of the anatomical
snuffbox. Scaphoid fractures are classically caused by a fall on an
1
,outstretched hand (FOOSH). Complications include avascular
necrosis of the proximal pole due to retrograde blood supply .
2. A 30-year-old man sustains a deep laceration to the palmar
aspect of his wrist. He is unable to oppose his thumb. Which
nerve is most likely injured?
a) Median nerve
b) Ulnar nerve
c) Radial nerve
d) Musculocutaneous nerve
Correct Answer: a) Median nerve
*Rationale: The recurrent branch of the median nerve innervates
the thenar muscles, including the opponens pollicis. Opposition
requires the action of opponens pollicis (C8-T1) and is tested by
touching the thumb tip to the fifth finger tip .*
2
,3. A 22-year-old baseball pitcher experiences sudden pain
and weakness during a throw. On examination, he has
difficulty abducting his arm beyond 15 degrees. Which nerve
is most likely injured?
a) Axillary nerve
b) Suprascapular nerve
c) Long thoracic nerve
d) Musculocutaneous nerve
Correct Answer: b) Suprascapular nerve
*Rationale: The suprascapular nerve (C5-C6) innervates the
supraspinatus (arm abduction initiation, 0-15°) and infraspinatus
(external rotation). Injury causes weakness of abduction initiation
and external rotation. Axillary nerve injury (deltoid) affects
abduction from 15-90° .*
3
, 4. A 60-year-old woman with breast cancer undergoes a
modified radical mastectomy. Postoperatively, she has
difficulty abducting her arm past 90 degrees. Which nerve
was most likely injured during the procedure?
a) Axillary nerve
b) Long thoracic nerve
c) Thoracodorsal nerve
d) Medial pectoral nerve
Correct Answer: c) Thoracodorsal nerve
*Rationale: The thoracodorsal nerve (C6-C8) innervates the
latissimus dorsi muscle (adduction, extension, and internal rotation
of the arm). Injury results in weakness of arm adduction and
difficulty raising the arm above 90 degrees due to lack of
stabilization .*
4
Deal| Different Versions with Complete Real Exam
Questions and Correct Detailed Answers (Verified
Answers) Already Graded A+
1. A 45-year-old man falls on his outstretched hand and
presents with wrist pain and swelling. Physical examination
reveals tenderness in the anatomical snuffbox. Which bone is
most likely fractured?
a) Scaphoid
b) Lunate
c) Triquetrum
d) Hamate
Correct Answer: a) Scaphoid
Rationale: The scaphoid bone lies in the floor of the anatomical
snuffbox. Scaphoid fractures are classically caused by a fall on an
1
,outstretched hand (FOOSH). Complications include avascular
necrosis of the proximal pole due to retrograde blood supply .
2. A 30-year-old man sustains a deep laceration to the palmar
aspect of his wrist. He is unable to oppose his thumb. Which
nerve is most likely injured?
a) Median nerve
b) Ulnar nerve
c) Radial nerve
d) Musculocutaneous nerve
Correct Answer: a) Median nerve
*Rationale: The recurrent branch of the median nerve innervates
the thenar muscles, including the opponens pollicis. Opposition
requires the action of opponens pollicis (C8-T1) and is tested by
touching the thumb tip to the fifth finger tip .*
2
,3. A 22-year-old baseball pitcher experiences sudden pain
and weakness during a throw. On examination, he has
difficulty abducting his arm beyond 15 degrees. Which nerve
is most likely injured?
a) Axillary nerve
b) Suprascapular nerve
c) Long thoracic nerve
d) Musculocutaneous nerve
Correct Answer: b) Suprascapular nerve
*Rationale: The suprascapular nerve (C5-C6) innervates the
supraspinatus (arm abduction initiation, 0-15°) and infraspinatus
(external rotation). Injury causes weakness of abduction initiation
and external rotation. Axillary nerve injury (deltoid) affects
abduction from 15-90° .*
3
, 4. A 60-year-old woman with breast cancer undergoes a
modified radical mastectomy. Postoperatively, she has
difficulty abducting her arm past 90 degrees. Which nerve
was most likely injured during the procedure?
a) Axillary nerve
b) Long thoracic nerve
c) Thoracodorsal nerve
d) Medial pectoral nerve
Correct Answer: c) Thoracodorsal nerve
*Rationale: The thoracodorsal nerve (C6-C8) innervates the
latissimus dorsi muscle (adduction, extension, and internal rotation
of the arm). Injury results in weakness of arm adduction and
difficulty raising the arm above 90 degrees due to lack of
stabilization .*
4
