PNS - Brachial Plexus

Question 1

Median Nerve

Answer 1

Muscles that flex the hand and digits (flexor carpi radials); Skin on anterolateral surface hand

Question 2

Musculocutaneous Nerve

Answer 2

Muscles that flex the forearm (biceps brachia); Skin on the lateral surface forearm

Question 3

Axillary Nerve

Answer 3

Muscles that abduct, flex, and extend the arm (deltoid, teres minor); Skin on portions of shoulder

Question 4

Ulnar Nerve

Answer 4

Muscles that flex the hand (flexor carpi ulnaris); Skin on medial surface hand; “Funny bone” - Medial epicondyle of humorous

Question 5

Radial Nerve

Answer 5

Muscles that extend the forearm and hand (triceps brachia, extensor carpi ulnaris); Skin on posterolateral surface entire limb

Question 6

Median Antebrachial Cutaneous Nerve

Answer 6

Sensory from skin over anterior, medial surface of arm and forearm

Question 7

Superficial Branch of Radial Nerve

Answer 7

Radial Portion of Hand

Question 8

Deep Branch of Radial Nerve

Answer 8

Supinator muscle, digital extensor muscles, and abductor pollicis muscle

Question 9

Palmar Cutaneous Nerve

Answer 9

Skin on anterolateral surface hand