Nerves Of the Upper Limb

Question 1

Suprascapular nerve

Answer 1

C4-6
Emerges from the superior trunk.
Innervates infra and supraspinatus.

Question 2

Subclavian nerve; nerve to subclavius

Answer 2

C5-6
Emerges superior trunk–part of supraclavicular branches
Subclavian innervates subclavius.

Question 3

Lateral pectoral nerve

Answer 3

C5-7

Emerges on lateral cord.

Innervates the pec major

Question 4

Musculocutanenous

Answer 4

C5-7.

Emerges off lateral branch.

Innervates: biceps, brachialis, coracobrachialis

Question 5

Upper subscapular

Answer 5

C5-6

Emerges posterior cord.

Innervates: subscapularis

Question 6

Thoracodorsal nerve

Answer 6

C6-8

Emerges posterior cord.

Innervates: Lats

Question 7

Lower subscapular

Answer 7

C5-6.

Emerges posterior cord.

Innervates: subscapularis and teres major.

Question 8

Medial pectoral nerve

Answer 8

C8-T1

Emerges medial cord

Innervates: pec minor (sole innervation) and the pec major (with the lateral pectoral nerve)

Question 9

Medial brachial cutaneous

Answer 9

T1

Emerges medial cord.

Innervates forearm

Question 10

Medial antebrachial cutaneous

Answer 10

C8-T1

Emerges medial cord.

Innervates forearm

Question 11

Axillary nerve

Answer 11

C5-6

Emerges as a branch from the posterior cord

Innervates: teres minor and deltoid

Question 12

Radial nerve

Answer 12

C5-T1

Emerges as a branch from the posterior cord.

Innervates: triceps (C6-C8), brachialis minor C7, aconeus, brachioradialis, extensors carpi radialis longus and brevis.

Question 13

Median nerve

Answer 13

C6-T1

Emerges from medial and lateral cords.

Innervates: forearm/wrist

Question 14

Ulnar nerve

Answer 14

C7-T1

Emerged from medial cord

Question 15

Dorsal scapular nerve

Answer 15

• C4-C5
• emerges at C4 root
• innervates: rhomboids and levator scap

Question 16

Supraclavicular branches

Answer 16

Before the plexus.

Dorsal scapular, suprascapular, nerve to subclavius, long thoracic.