UL

Question 1

axillary nerve
- muscles
- course
- patho

(ax chops the shoulder)

Answer 1

wraps around surgical neck of humerus

surgical neck fracture

deltoid (abduction)
teres minor (external rotation)

Question 1

musculocutaneous nerve muscles

Answer 1

exits lateral cord
= pierces corobrahialis
= travel between biceps and brachialis

BBC
biceps brachii (flexion, supination)
corocobrahialis (flexion, adduction)
BRACHIALIS (elbow flexion) ==> brachioradialis is inervated by the radial nerve

Question 2

radial nerve

Answer 2

exit posterior cord
= wrap around radial groove of humerus
= pass through cubital fossa
= divide into deep (motor) and superficial (sensory) branch

BEST
brachioRADIALIS (elbow flexion)
extensors (wrist extensors)
supinator
triceps brachii

humeral shaft fracture

Question 3

median nerve

Answer 3

axilla
= cubital fossa
= carpal tunnel
= palmar and recurrent branch

LOAF
- lumbricals 1 + 2
- OP
- AbPB
- FPB

all foreaem flexors except for FCU and medial FCP

carpal tunnel syndrome = median nerve entrapment = ape hand

hand of benediction (when trying to close fingers)
= cannot close thumb, second, and third

Question 4

ulnar nerve

Answer 4

posterior to medial epicondyle

all intrinsic muscles except LOAF
- FCU
- medial FDP

claw hand