Shoulder, upper extremity, forearm, arm, hand

Question 1

Medial Pectoral Nerve

Answer 1

Comes from the Medial cord (C8 and T1). Pectoralis Major and Minor

Question 2

Long thoracic Nerve

Answer 2

Comes from C5, 6, 7. Serratus anterior muscle.

Question 3

Lateral Pectoral Nerve

Answer 3

comes from Lateral Cord (c5, 6, 7). Pectoralis Major.

Question 4

Musculocutaneous Nerve

Answer 4

Comes from Lateral Cord (C5, 6, 7). Innervates Biceps Brachii, Coracobrachialis, Brachialis.

Question 5

Radial Nerve (before it branches deep and superficial)

Answer 5

Comes from Posterior cord (C5, 6, 7, 8, T1). Innervates triceps, Brachioradialis, Extensor carpi Radialis longus.

Question 6

Deep Branch of Radial Nerve

Answer 6

Comes from the radial nerve. Innervates Extensor Carpi Radialis Brevis, Extensor Digitorum, Extensor Dititorum minimi, Extensor Carpi Ulnaris, Anconeus, Suprinator, Abdactor Pollicis Longus, Extensor Pollicis Brevis, Extensor Indicis. (AKA the deep branch innervates everything on the posterior forearm, might be easier to remember)

Question 7

Median Nerve (Before it branches to the interosseus nerves)

Answer 7

Comes from the Medial and Lateral Cord (C5, 6, 7, 8, T1). Innervates Pronator teres, Flexor carpi radials, palmaris longus, Flexor digitorum superficialis, Flexor Pollicis Longus,

Question 8

Anterior Interosseus Nerve

Answer 8

Comes from Median Nerve. Innervates Pronator Quadratus.

Question 9

Ulnar Nerve (Before it branches to the deep and superficial Ulnar nerves)

Answer 9

Comes form the Medial cord (C8 and T1, some C7). Innervates Flexor carpi Ulnaris.

Question 10

Superficial Branch of Ulnar Nerve

Answer 10

Comes from Ulnar Nerve. Innervates Palmaris Brevis.

Question 11

Accessory Nerve

Answer 11

C11. Trapezius.

Question 12

Thoracodorsal Nerve

Answer 12

Comes off from the posterior cord (C6, 7, 8). Latissimus Dorsi.

Question 13

Dorsal Scapular nerve

Answer 13

Comes off C5 root. Rhomboid Minor and Major and levator Scapulae.

Question 14

Axillary Nerve

Answer 14

Comes from Posterior Cord (C5, 6). Innervates Deltoid, Teres Minor.

Question 15

Suprascapular Nerve

Answer 15

Comes from the Superior Trunk (C5, 6). Innervates Supraspinatus, Infraspinatus.

Question 16

Lower Subscapular Nerve

Answer 16

Comes from Posterior cord (C5, C6). Teres Major, Subscapularis.

Question 17

Upper Subscapular Nerve

Answer 17

Comes from Posterior cord (C5, 6). Subscapularis.

Question 18

Subclavius Nerve

Answer 18

Comes off Superior Division. Innervates subclavius muscle.