chapter 20

Question 1

what are the cutaneous supply of the arm?

Answer 1

1) Upper lateral brachial cutaneous nerve
2) Lower lateral brachial cutaneous nerve
3) medial brachial cutaneous nerve
4) posterior brachial cutaneous nerve
5) Intercosto-brachial cutaneous nerve

Question 2

Origin: Termination of the AXILLARY NERVE
areas supplied: Upper lateral arm

Answer 2

Upper lateral brachial cutaneous nerve

Question 3

origin: Posterior antebrachial cutaneous nerve (a branch of the radial nerve)
area supplied: LOWER lateral arm

Answer 3

Lower lateral brachial cutaneous nerve

Question 4

origin: MEDIAL cord of brachial plexus
area supplied: Lower medial arm

Answer 4

Medial brachial cutaneous nerve

Question 5

Origin: RADIAL NERVE
area supplied: Posterior arm

Answer 5

Posterior brachial cutaneous nerve

Question 6

Origin: Lateral cutaneous branch of intercostal nerve 12
area supplied: UPPER medial arm

Answer 6

Intercosto-brachial cutaneous nerve

Question 7

What are the cutaneous supply of the forearm

Answer 7

1) lateral antebrachial cutaneous nerve
2) posterior antebrachial cutaneous nerve
3) medial antebrachial cutaneous nerve

Question 8

Origin: Termination of the MUSCULOCUTANEOUS nerve
Area supplied: Lateral forearm

Answer 8

Lateral antebrachial cutaneous nerve

Question 9

Origin: RADIAL NERVE
area supplied: posterior forearm

Answer 9

Posterior antebrachial cutaneous nerve

Question 10

Origin: MEDIAL CORD
area supplied: Medial forearm

Answer 10

Medial antebrachial cutaneous nerve

Question 11

what are the structure of the cutaneous supply of the hand?

Answer 11

1) palmer branch of the median nerve
2) Digital branches of the median nerve
3) palmer branch of the ulnar nerve
4) Digital branches of the ulnar nerve
5) DORSAL branch of the ulnar nerve
6) SUPERFICIAL branch of the radial nerve

Question 12

origin: Medial nerve
area supplied: LATERAL PALM

Answer 12

Palmer branch of the median nerve

Question 13

origin: MEDIAN NERVE
area supplied: Lateral 3.5 digits anteriorly and their tips posteriorly

Answer 13

Digital branches of the median nerve

Question 14

origin: Ulnar nerve
Area supplied: MEDIAL palm

Answer 14

Palmar branch of the ulnar nerve

Question 15

Origin: SUPERFICIAL branches of the ulnar nerve
area supplied: Medial 1.5 digits, anteriorly

Answer 15

Digital branches of the ulnar nerve

Question 16

origin: Ulnar nerve
area supplied: Dorsum of the medial 1.5 digits and hand

Answer 16

DORSAL branch of the ulnar nerve

Question 17

Origin: RADIAL nerve
Area supplied: Skin of the lateral half of the dorsum of the hand, and the proximal portion of the lateral 3.5 digits, posteriorly

Answer 17

SUPERFICIAL branch of the radial nerve

Question 18

1) Which of the following statements regarding the cutaneous nerves of the arm is INCORRECT?
a. The upper lateral brachial cutaneous nerve originates from the termination of the axillary nerve
b. The posterior brachial cutaneous nerve originates from the posterior cord of the brachial plexus
c. The lower lateral brachial cutaneous nerve originates from the posterior antebrachial cutaneous nerve
d. The intercosto-brachial cutaneous nerve supplies the upper medial arm
e. The posterior brachial cutaneous nerve is a direct branch of the radial nerve

Answer 18

b. The posterior brachial cutaneous nerve originates from the posterior cord of the brachial plexus

Question 19

2) Match the cutaneous nerves of the forearm with their correct origin:
a. Medial antebrachial cutaneous nerve:
b. Lateral antebrachial cutaneous nerve:
c. Posterior antebrachial cutaneous nerve:

Answer 19

a) medial cord
b) termination of musculocutaneous nerve
c) Radial nerve

Question 20

3) Which of the following statements regarding the cutaneous nerves of the hand is CORRECT?
a. The palmar branch of the median nerve supplies the medial palm
b. The digital branches of the median nerve supply the lateral 3.5 digits anteriorly and their tips posteriorly
c. Digital branches of the ulnar nerve supply the lateral 1.5 digits, anteriorly
d. The digital branches of the ulnar nerve originates from the deep branch of the ulnar nerve

Answer 20

b. The digital branches of the median nerve supply the lateral 3.5 digits anteriorly and their tips posteriorly