Upper Extremity Nerves

Question 1

the long thoracic nerve arises from what spinal nerve levels?

Answer 1

C5-C7

Question 2

the lateral, medial, and posterior cord are in relationship to what structure?

Answer 2

axillary artery

Question 3

the musculocutaneous nerve arises from which cord of the brachial plexus?

Answer 3

lateral

Question 4

the axillary nerve arises from which cord of the brachial plexus?

Answer 4

posterior

Question 5

the median nerve has contribution from what cords of the brachial plexus?

Answer 5

lateral and medial

Question 6

the subscapular nerves and the thoracodorsal nerve arise from which cord of the brachial plexus?

Answer 6

posterior

Question 7

the radial nerve arises from which cord of the brachial plexus?

Answer 7

posterior

Question 8

where do the lateral and medial pectoral nerve arise from , respectively?

Answer 8

lateral - arises from lateral cord
medial - arises from medial cord

Question 9

the suprascapular and dorsal scapular nerve arise from which part of the brachial plexus?

Answer 9

upper trunk

Question 10

the brachial plexus is made up of the anterior rami of which spinal nerve levels?

Answer 10

c5-t1

Question 11

the upper trunk of the brachial plexus is supplied by which nerve roots?

Answer 11

c5-c6

Question 12

the middle trunk of the brachial plexus is supplied by what nerve root?

Answer 12

c7

Question 13

the lower trunk of the brachial plexus is supplied by which nerve roots?

Answer 13

c8-t1

Question 14

which pectoral nerve supplies both the major and minor?

Answer 14

medial pectoral nerve

Question 15

the subscapular nerves provide innervation to what two muscles?

Answer 15

subscapularis and the teres major

Question 16

the medial cutaneous nerve of the forearm is supplied by what two nerve roots?

Answer 16

c8/t1

Question 17

which nerve gives rise to the upper lateral cutaneous nerve of the arm?

Answer 17

axillary nerve

Question 18

what is the innervation of the deltoid?

Answer 18

axillary nerve

Question 19

elbow flexion is largely the result of innervation by what terminal nerve branch of the brachial plexus?

Answer 19

musculocutaneous enrve

Question 20

the musculocutaneous nerve pierces which muscle?

Answer 20

coracobrachialis

Question 21

as the musculocutaneous nerve descends through the arm, it travels between what two muscle layers?

Answer 21

biceps brachii and brachialis

Question 22

the lateral cutaneous nerve of the forearm is a continuation of what nerve?

Answer 22

musculocutaneous

Question 23

the radial nerve exists the axilla via which space?

Answer 23

the triangular interval

Question 24

the radial nerve supplies motor innervation to what two major muscle structures of the forearm?

Answer 24

brachioradialis and ECRL

Question 25

which nerve innervates the triceps?

Answer 25

radial nerve

Question 26

which nerve supplies the superficial and deep extensor muscles of the forearm, but has no cutaneous function?

Answer 26

PIN

Question 27

which nerve supplies motor innervation to the FCU and medial half of the FDP?

Answer 27

ulnar nerve

Question 28

which nerve supplies the hypothenar muscles?

Answer 28

ulnar nerve

Question 29

which nerve supplies motor innervation to adductor pollicis?

Answer 29

ulnar nerve

Question 30

the median nerve runs with which artery along the arm?

Answer 30

brachial artery

Question 31

the median nerve provides direct motor innervation to what three muscles of the forearm?

Answer 31

pronator teres, FCR, and palmaris longus

Question 32

which nerve provides motor innervation to the lateral half FDP?

Answer 32

AIN

Question 33

which branch of the AIN innervates the thenar muscles?

Answer 33

recurrent branch

Question 34

which nerve provides motor innervation to the flexor pollicis longus and pronator quadratus?

Answer 34

AIN