Test 3 Brachial Plexus

Question 1

Dorsal scapular N innervates which muscles?

Answer 1

Levator scapulae m.
Rhomboid minor m.
Rhomboid major m.

Question 2

Supraclavicular N innervates which muscles?

Answer 2

Supraspinatus m.
Infraspinatus m.

Question 3

N to subclavius innervates which muscle?

Answer 3

Subclavius m.

Question 4

Lateral pectoral N. Innervates which muscles?

Answer 4

Pec major

Question 5

Upper subscapular

Answer 5

Supscapularis m.

Question 6

Thoracodorsal N. Innervates?

Answer 6

Latissimus dorsi m.

Question 7

Lower subscapular N. Innervates?

Answer 7

Subscapular m
Teres major m.

Question 8

Long thoracic N innervates?

Answer 8

Serratus anterior m.

Question 9

Medial pectoral n. Innervates?

Answer 9

Pec major m.
Pec minor m.

Question 10

Medial brachial cutaneous n. Function?

Answer 10

Sensory to medial brachium (arm)

Question 11

Medial antebrachial cutaneous n. Function?

Answer 11

Sensory to medial antebrachium (forearm)

Question 12

Musculocutaneous N innervates?

Answer 12

Biceps brachii m.
Coracobrachialis m.
Brachialis m.

Question 13

Axillary n innervates?

Answer 13

Deltoid m.
Teres minor m.

Question 14

Median N. Function?

Answer 14

Pronator teres m.
Lumbricals 1 &2
Flexor carpi radialis m.
Flexor digitorum superficials m.

Sensation to lateral palm
(Affected by carpal tunnel)

Question 15

Radial N innervates?

Answer 15

Triceps brachii m.
Brachioradialis m.
Extensor carpi radialis longus m.

Question 16

Ulnar nerve innervates?

Answer 16

Flexor carpi ulnaris .
Medial 1/2 of flexor digitorum profundus m.

Question 17

Continuation of musculocutaneous nerve?

Answer 17

Lateral antebrachial cutaneous n.

Question 18

Lateral antebrachial cutaneous n function?

Answer 18

Sensation to lateral forearm

Question 19

Axillary nerve continuation?

Answer 19

Upper lateral brachial cutaneous n.

Question 20

Upper lateral brachial cutaneous n function?

Answer 20

Sensation to upper lateral arm (over shoulder)

Question 21

Radial nerve branches?

Answer 21

Motor:
Muscular branch
Deep radial n
Posterior interossesus n.

Sensory:
Superficial brachial n
Posterior brachial cutaneous n
Lower lateral brachial cutaneous n.
Posterior antebrachial cutaneous n.

Question 22

Muscular branch of radial n. Innervates?

Answer 22

Anconeus m

Question 23

Deep radial N branch of radial innervates?

Answer 23

Supinator m.
Extensor carpi radialis brevis

Question 24

Posterior interosseus n. Branch of radial n. Innervates?

Answer 24

Extensor carpi radialis brevis m.
Extensor digitorum m.
Extensor digiti minimi m.
Extensor carpi ularis m.

Question 25

Superficial branch of radial nerve function?

Answer 25

Sensation to lateral dorsal hand around thumb

Question 26

Posterior brachial cutaneous n function?

Answer 26

Sensation of posterior arm (over triceps)

Question 27

Lower lateral brachial cutaneous n function? (Branch of radial n.)

Answer 27

Sensation to lower lateral anterior arm

Question 28

Posterior antebrachial cutaneous n function? (Branch of radial nerve)

Answer 28

Sensation to posterior forearm

Question 29

Branches of Median nerve?

Answer 29

Motor: Recurrent branch Anterior interosseus n. Sensory: Palmar cutaneous branch

Question 30

Recurrent branch of median nerve innervates?

Answer 30

Thenar muscles: Opponens pollicis brevis Abductor pollicis brevis flexor pollicis brevis

Question 31

Anterior interosseous N innervates? (Branch of radial n.)

Answer 31

Flexor pollicis longus m. Pronator quadratus m. Lateral 1/2 of flexor digitorum profundus m.

Question 32

Palmar cutaneous branch function? (Branch of median nerve)

Answer 32

Sensation to thenar eminence (Not affected by carpal tunnel)

Question 33

Branches of Ulnar Nerve

Answer 33

Motor: Deep ulnar nerve Sensory: Dorsal cutaneous nerve Palmar cutaneous n.

Question 34

Deep ulnar nerve innervates? (Branch of ulnar nerve)

Answer 34

Hypothenar muscles: Adductor pollicis m. Adbuctor digiti minimi m. Flexor digitis minimi m. Opponins digiti minimi m. Dorsal interossei m. Palmar interossesei m. Lumbricals 3&4

Question 35

Dorsal cutaneous n. Function? (Branch of ulnar nerve)

Answer 35

Sensation to medial dorsal hand

Question 36

palmar cutaneous n function? (Branch of ulnar nerve)

Answer 36

Sensation to medial palm

Question 37

Test to see if nerves are anesthetized?

Answer 37

Pinch thenar = median n. Pinch hypothenar = ular n. Push hand = radial n. Pull hand = musculocuntaneous n. Abduct shoulder = axillary n.