Innervation Of The Upper Body

Question 1

Dorsal Scapular nerve

Answer 1

Levator scapulae C3,4,5
Rhomboids C4,5

Question 2

Medial pectoral nerve

Answer 2

Pectoralis minor C6-8, T1
Pectoralis major C7,8, T1

Question 3

Long thoracic nerve

Answer 3

Serratus anterior C5,6,7

Question 4

Axillary nerve

Answer 4

Deltoid C5,6
Teres minor C5,6

Question 5

Lateral pectoral nerve

Answer 5

Pectoralis major C5,6,7

Question 6

Thoracodorsal nerve

Answer 6

Latissimus dorsi C6,7,8

Question 7

Lower subscapular nerve, nerve to Subclavius

Answer 7

Teres major C5,6
—-
Subclavius C5,6

Question 8

Musculocutaneous nerve

Answer 8

Coracobrachialis C5-7
Biceps brachii C5,6
Brachialis C5,6

Question 9

Suprascapular nerve

Answer 9

Supraspinatus C5,6
Infraspinatus C5,6

Question 10

Upper and lower subscapular nerve

Answer 10

Subscapularis C5,6

Question 11

Radial Nerve (13 muscles!)

Answer 11

Triceps brachii C6,7,8
Anconeous C7,8, T1
Brachioradialis C5-7

Extensor capri radialis longus C6,7

C7,C8
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digiti minimi
Extensor digitorum
Abductor pollicus longus
Extensor indicis
Extensor pollicus brevis
Extensor pollicus longus
Supinator

Question 12

Median Nerve (11 muscles)

Answer 12

C6,7
Pronator Teres
Flexor carpi radialis

C7,8
Palmaris longus

C7,8,T1
Flexor digitorum superficialis

C8, T1
Flexor digitorum profundus (radial half)
Flexor pollicus longus
Pronator Quadratus
Abductor pollicus brevis
Flexor pollicus brevis (lateral head)
Opponens pollicus
Lumbricals 1&2

Question 13

Ulnar nerve (10 muscles)

Answer 13

C7, 8
Flexor carpi ulnaris

C8, T1
Flexor digitorum profundus (ulnar half)
Palmaris brevis
Flexor pollicus brevis (medial head)
Adductor pollicus
Abductor digiti minimi
Flexor digiti minimi brevis
Opponens digiti minimi
Lumbricals 3&4
Palmar and Dorsal interossei