Nerve Innervation CSV File

Question 1

Dorsal scapular Nerve

Answer 1

Rhomboids; occasionally supplies levator scapulae

Question 2

Long thoracic Nerve

Answer 2

Serratus anterior

Question 3

Suprascapular Nerve

Answer 3

Supraspinatus and infraspinatus muscles; glenohumeral (shoulder) joint

Question 4

Subclavian nerve (nerve to subclavius) Nerve

Answer 4

Subclavius and sternoclavicular joint (accessory phrenic root innervates diaphragm)

Question 5

Lateral pectoral Nerve

Answer 5

Primarily pectoralis major; some lateral pectoral nerve fibers pass to pectoralis minor via branch to medial pectoral nerve

Question 6

Musculocutaneous Nerve

Answer 6

Muscles of anterior compartment of arm (coracobrachialis, biceps brachii and brachialis); skin of lateral aspect of forearm

Question 7

Median Nerve

Answer 7

Muscles of anterior forearm compartment (except for flexor carpi ulnaris and ulnar half of flexor digitorum profundus), 5 intrinsic muscles in thenar half of palm and palmar skin

Question 8

Medial pectoral Nerve

Answer 8

Pectoralis minor and sternocostal part of pectoralis major

Question 9

Medial cutaneous Nerve

Answer 9

Skin of medial side of arm, as far distal as medial epicondyle of humerus and olecranon of ulna

Question 10

Median cutaneous nerve of forearm Nerve

Answer 10

Skin of medial side of forearm, as far distal as wrist

Question 11

Ulnar Nerve

Answer 11

Flexor carpi ulnaris and ulnar half of flexor digitorum profundus (forearm); most intrinsic muscles of hand; skin of hand medial to axial line of digit 4

Question 12

Upper subscapular Nerve

Answer 12

Superior portion of subscapularis

Question 13

Lower subscapular Nerve

Answer 13

Inferior portion of subscapularis and teres major

Question 14

Thoracodorsal Nerve

Answer 14

Latissimus dorsi

Question 15

Axillary Nerve

Answer 15

Glenohumeral joint; teres minor and deltoid muscles; skin of superolateral arm (over inferior part of deltoid)

Question 16

Radial Nerve

Answer 16

All muscles of posterior compartments of arm and forearm; skin of posterior and inferolateral arm, posterior forearm, and dorsum of hand lateral to axial line of digit 4