Cutaneous Nerves of Upper Limb

Question 0

What region does the C5 nerve supply?

Answer 0

The arm laterally

Question 1

What region do the C3 and C4 nerves supply?

Answer 1

The region at the base of the neck, extending laterally over the shoulder.

Question 2

What region does the C6 nerve supply?

Answer 2

The forearm laterally and the thumb

Question 3

What region does the C7 nerve supply?

Answer 3

The middle and ring fingers and the middle posterior surface of the limb

Question 4

What region does the C8 nerve supply?

Answer 4

The little finger, the medial side of the hand, and the forearm

Question 5

What region does the T1 nerve supply?

Answer 5

The middle of the forearm to the axilla

Question 6

What region does the T2 nerve supply?

Answer 6

A small part of the arm and the skin of the axilla

Question 7

What is the segmental innervation of the supraclavicular nerves?

Answer 7

C3, C4

Question 8

What is the course of the supraclavicular nerves?

Answer 8

They pass anterior to the clavicle and deep to the platysma

Question 9

What region do the supraclavicular nerves supply?

Answer 9

The skin over the clavicle and the superolateral aspect of the pectoralis minor

Question 10

What is the segmental innervation of the posterior cutaneous nerve of the arm?

Answer 10

C5-C8

Question 11

What is the origin of the posterior cutaneous nerve of the arm?

Answer 11

It is a branch of the radial nerve

Question 12

What region does the posterior cutaneous nerve of the arm supply?

Answer 12

Supplies the skin on the posterior surface of the arm

Question 13

What is the segmental innervation of the posterior cutaneous nerve of the forearm?

Answer 13

C5-C8

Question 14

Where does the posterior cutaneous nerve of the forearm originate?

Answer 14

It is a branch of the radial nerve

Question 15

What region does the posterior cutaneous nerve of the forearm supply?

Answer 15

Skin on the posterior surface of the forearm

Question 16

What is the segmental innervation of the superior lateral cutaneous nerve of the arm?

Answer 16

C5, C6

Question 17

Where does the superior lateral cutaneous nerve of the arm originate?

Answer 17

It is a terminal branch of the axillary nerve that emerges from beneath the posterior margin of the deltoid

Question 18

What region does the superior lateral cutaneous nerve of the arm supply?

Answer 18

Skin over the lower part of the deltoid and on the lateral side of the midarm

Question 19

What is the segmental innervation of the inferior lateral cutaneous nerve of the arm?

Answer 19

C5, C6

Question 20

Where does the inferior lateral cutaneous nerve of the arm originate?

Answer 20

It is a branch of the radial nerve

Question 21

What region does the inferior lateral cutaneous nerve of the arm supply?

Answer 21

Skin over the inferolateral aspect of the arm

Question 22

What is the segmental innervation of the lateral cutaneous nerve of the forearm?

Answer 22

C6, C7

Question 23

What is the origin of the lateral cutaneous nerve of the forearm?

Answer 23

It is a terminal branch of the musculocutaneous nerve

Question 24

What region does the lateral cutaneous nerve of the forearm supply?

Answer 24

Skin on the lateral side of the forearm

Question 25

What is the origin of the medial cutaneous nerve of the arm?

Answer 25

It arises from the medial cord of the brachial plexus (often unites in axilla with lateral cutaneous branch of the 2nd intercostal nerve)

Question 26

What region does the medial cutaneous nerve of the arm supply?

Answer 26

Skin on the medial side of the arm

Question 27

What is the segmental innervation of the intercostobrachial nerve?

Answer 27

T2

Question 28

What is the origin of the intercostobrachial nerve?

Answer 28

A lateral cutaneous branch of the 2nd intercostal nerve

Question 29

What region does the intercostobrachial nerve supply?

Answer 29

Skin on the medial surface of the arm

Question 30

What is the segmental innervation of the medial cutaneous nerve of the forearm?

Answer 30

C8, T1

Question 31

What is the origin of the medial cutaneous nerve of the forearm?

Answer 31

Arises from the medial cord of the brachial plexus

Question 32

What region does the medial cutaneous nerve of the forearm supply?

Answer 32

Skin on the anterior and medial surfaces of the forearm

Question 33

What is the segmental innervation of the medial cutaneous nerve of the arm?

Answer 33

C8-T2