Anatomy review questions

Question 1

the sciatic nerve typically emerges immediately inferior to which gluteal muscle?

A. gluteus medius
B. piriformis
C. superior gemellus
D. obturator internus
E. quadratus femoris

Answer 1

B. Piriformis

Question 2

A patient is unable to flex their thigh at the hip and has diminished sensation in the anterior thigh. Which nerve may be damaged?

A. superior gluteal
B. inferior gluteal
C. obturator
D. femoral
E. sciatic - tibial n.

Answer 2

D. femoral

think “femoral, karate, kicking”

Question 3

A patient is in a MVA resultign in a major fracture of their ischium and pubis. Physical exam suggests damage to the nerve in this region. Which muscle’s action is most likely to be affected?

A. adductor longus
B. semimembranosus
C. quadriceps femoris
D. gluteus maximus

Answer 3

A. adductor longus

Question 4

during our morning pediatric clinic you attend to a two-week old baby boy with a left arm that does not move. His pregnancy was complicated by gestational diabetes and shoulder dystocia. His nerve injury happened at birth and has shown no improvement. Which type of nerve injury most likely occured?

A. Avulsion
B. Laceration
C. Compression
D. stretch/traction

Answer 4

A. Avulsion

Question 5

during our morning pediatric clinic you attend to a two-week old baby boy with a left arm that does not move. His pregnancy was complicated by gestational diabetes and shoulder dystocia. His nerve injury happened at birth and has shown no improvement. which part of the brachial plexus was likely injured?

A. C8 and T1 spinal nerve roots
B. upper trunk
C. middle trunk
D. radial nerve
E. axillary nerve

Answer 5

B. upper trunk