Nerves

Question 1

Axillary nerve

Answer 1

Posterior cord
Innervates Deltoid, Teres minor
Sensory: skin over deltoid

Question 2

MC nerve

Answer 2

Lateral cord
Innervates: corcobrachialis, biceps, brachialis
Sensory: lateral forearm (lateral ABC)

Question 3

Median n
AIN

Answer 3

Medial and lateral cords
Motor: pronatir teres, FCR, palmaris, FDS, lumbrical 1,2, thenar muscles (APB,OP,FPB superficial)
Sensory; volar thumb, index, middle, radial ring

AIN: FPL FDP 2,3 PQ

Question 4

Ulnar nerve

Answer 4

medial cord
motor: FCU, FDP 4,5, hypothenar (ADM,FDMB,ODM), thenar (AdP, deep FPB), lumbricals 3,4
sensory: small ulnar half of ring, dorsal ulnar side of hand (dorsal sensory nerve)

Question 5

radial nerve

Answer 5

posterior cord
motor: triceps, brachiradialis, ECRL, ECRB
PIN: supinator, EDC, ECU, EDM, APL, EPB, EPL, EIP

Sensory: posterior cutaneous- arm/forearm, superficial branch of radial n, dorsal digital branch