Spinal Nerves

Question 1

Cervical plexus

Answer 1

phrenic, axillary, median, musculocutaneous, radial, ulnar

Question 2

lumbar plexus

Answer 2

femoral, obturator

Question 3

sacral plexus

Answer 3

common perineal (fibular), sciatic, tibial

Question 4

phrenic nerve

Answer 4

travels through thoracic cavity; innervates diaphragm

Question 5

axillary nerve

Answer 5

innervates deltoid and teres minor

sensory signals from superolateral arm

Question 6

median nerve

Answer 6

innervates most anterior forearm, thenar (thumb), lateral two lumbricals;
sensory- palmar aspects and dorsal tips of lateral 3.5 digits

Question 7

musculocutaneous nerve

Answer 7

innervates anterior arm- coracobrachialis, biceps brachia, and brachialis

sensory- lateral forearm

Question 8

radial nerve

Answer 8

posterior arm- triceps brachia and anceneus, posterior forearm, brachioradialis

sensory- posterior arm and forearm, dorsal aspect of lateral 3 digits

Question 9

ulnar nerve

Answer 9

anterior forearm and intrinsic hand

sensory- dorsal and palmar aspects of medial 1.5 digits

Question 10

femoral nerve

Answer 10

anterior thigh

anterior and interomedial thigh, medial leg and foot

Question 11

obturator nerve

Answer 11

medial thigh

superomedial thigh

Question 12

common perineal (fibular) nerve

Answer 12

short head of biceps femurs, branches to deep and superficial fibular- anterior and lateral leg and dorsum of foot

dorsum of foot

Question 13

sciatic nerve

Answer 13

same as tibial and common fibular nerves

Question 14

tibial nerve

Answer 14

posterior thigh and leg, plantar foot

plantar surface