Upper Limb Muscle Innervation

Question 1

Latissimus Dorsi

Answer 1

Thoracodorsal n. (C6-8)

Question 2

Levator Scapulae

Answer 2

Dorsal scapular n. (C4-5)

Question 3

pectoralis major

Answer 3

• clavicular head (lateral pectoral n. C5-6)

- sternocostal head (medial pectoral n. C7-T1)

Question 4

pectoralis minor

Answer 4

medial and lateral pectoral n. C5-T1

Question 5

rhomboids

Answer 5

dorsal scapular n. (C4-5)

Question 6

serratus anterior

Answer 6

long thoracic n. (C5-7)

Question 7

subclavious

Answer 7

subclavian n. (C5-6)

Question 8

trapezius

Answer 8

accessory n. CN11

Question 9

deltoid

Answer 9

axillary n. (C5-6)

Question 10

teres minor

Answer 10

axillary n. (C5-6)

Question 11

supraspinatus

Answer 11

suprascapular n. (C4-6)

Question 12

infraspinatus

Answer 12

suprascapular n. (C5-6)

Question 13

teres major

Answer 13

lower subscapular n. (C5-6)

Question 14

subscapularis

Answer 14

lower subscapular n. (C5-6)

Question 15

biceps brachii

Answer 15

musculocutaneous n. (C5-6)

Question 16

brachialis

Answer 16

musculocutaneous n. (C5-6) some radial n.

Question 17

coracobrachialis

Answer 17

musculocutaneous n. (C6-7)

Question 18

triceps brachii

Answer 18

radial n. (C6-T1)

Question 19

anconeus

Answer 19

radial n. (C7-8)

Question 20

pronator teres

Answer 20

median n. (C6-7)

Question 21

flexor carpi radialis

Answer 21

median n. (C6-8)

Question 22

palmaris longus

Answer 22

median n. (C7-8)

Question 23

flexor carpi ulnaris

Answer 23

ulnar n. (C7-T1)

Question 24

flexor digitorum superficialis

Answer 24

median n. (C7-T1)

Question 25

flexor digitorum profundus

Answer 25

digits 2-3 (anterior interosseous n. C7-T1)

digits 4-5 (ulnar n. C7-T1)

Question 26

flexor pollicis longus

Answer 26

anterior interosseous n. (C7-T1)

Question 27

pronator quadratus

Answer 27

anterior interosseous n. (C8-T1)

Question 28

brachioradialis

Answer 28

radial n. (C5-6)

Question 29

extensor carpi radialis longus

Answer 29

radial n. (C6-8)

Question 30

extensor carpi radialis brevis

Answer 30

radial n. (C6-8)

Question 31

extensor digitorum

Answer 31

radial n. (C6-8)

Question 32

extensor digiti minimi

Answer 32

radial n. (C7-8)

Question 33

extensor carpi ulnaris

Answer 33

radial n. (C6-8)

Question 34

extensor indicis

Answer 34

radial n. (C7-8)

Question 35

extensor pollicis longus

Answer 35

radial n. (C6-8)

Question 36

extensor pollicis brevis

Answer 36

radial n. (C6-8)

Question 37

abductor pollicis longus

Answer 37

radial n. (C6-8)

Question 38

supinator

Answer 38

radial n. (C5-6)

Question 39

abductor pollicis brevis

Answer 39

recurrent branch of median n. (C6-T1)

Question 40

flexor pollicis brevis

Answer 40

superficial head (recurrent branch of median n. C6-T1)
deep head (ulnar n. C8-T1)

Question 41

opponens pollicis

Answer 41

recurrent branch of median n. (C6-T1)

Question 42

adductor pollicis

Answer 42

deep branch of ulnar n. (C8-T1)

Question 43

opponens digiti minimi

Answer 43

deep branch of ulnar n. (C8-T1)

Question 44

flexor digiti minimi brevis

Answer 44

deep branch of ulnar n. (C8-T1)

Question 45

abductor digiti minimi

Answer 45

deep branch of ulnar n. (C8-T1)

Question 46

lumbricals

Answer 46

digits 2-3 (median n. C7-T1)

digits 4-5 (deep branch of ulnar n. C8-T1)

Question 47

palmar interossei

Answer 47

deep branch of ulnar n. (C8-T1)

Question 48

dorsal interossei

Answer 48

deep branch of ulnar n. (C8-T1)