Nerves

Question 1

What does cranial nerve XI innervate?

Answer 1

Trapezius

Question 2

What does the thoracodorsal nerve (C6, C7, C8) innervate?

Answer 2

Latissimus Dorsi

Question 3

What does the dorsal scapular nerve (C5) innervate?

Answer 3

1. Rhomboid major
2. Rhomboid minor
3. Levator scapulae

Question 4

What do the dorsal rami innervate?

Answer 4

Intrinsic (Deep) muscles of the back

Question 5

What does the medial pectoral nerve (C8, T1) innervate?

Answer 5

1. Pectoralis major

2. Pectoralis minor

Question 6

What does the lateral pectoral nerve innervate (C5, C6, C7)?

Answer 6

Pectoralis major

Question 7

What does the axillary nerve (C5, C6) innervate?

Answer 7

1. Deltoid

2. Teres Minor

Question 8

What does the long thoracic nerve (C5, C6, C7) innervate?

Answer 8

Serratus anterior

Question 9

What does the lower subscapular (C5, C6) nerve innervate?

Answer 9

1. Teres major

2. Subscapularis

Question 10

What does the suprascapular nerve (C5, C6) innervate?

Answer 10

1. Supraspinatus

2. Infraspinatus

Question 11

What does the Upper subscapular nerve (C5, C6) innervate?

Answer 11

Subscapularis

Question 12

What does the musculocutaneous nerve (C5, C6, C7) innervate?

Answer 12

Anterior compartment of the arm:

• Biceps brachii
• Coracobrachialis
• Brachialis

Question 13

What does the radial nerve (C5, C6, C7, C8, T1) innervate?

Answer 13

Posterior compartment of the arm and forearm.

Question 14

What does the median nerve (C5, C6, C7, C8, T1) innervate?

Answer 14

• Anterior compartment of the forearm (except Flexor carpi ulnaris)
• Digits 2&3 of Flexor digitorum profundus
• Recurrent branch: Thenar compartment
• Lumbricals 2&3

Sensory: lateral palm including thumb, 2nd, 3rd and half of digit 4. Dorsal side: tips of digits 1, 2, 3 and 1/2 of 4.

Question 15

What does the ulnar nerve (C7, C8, T1) innervate?

Answer 15

• Flexor carpi ulnaris
• Flexor digitorum profundus digits 4 and 5
• Adductor pollicis
• Hypothenar muscles (3)
• Lumbricals, 4 and 5
• Interossei: Palmar -3, Dorsal- 4