1.7 Upper Limbs Nerve Supply

Question 1

Innervates the serratus anterior muscle

Answer 1

Long thoracic nerve

Question 2

innervates the rhomboid muscles

Answer 2

Dorsal scapular nerve (C5)

Question 3

Innervaties supraspinatus and infraspinatus

Answer 3

Suprascapular nerve

Question 4

Innerve the sublcavius muscle

Answer 4

nerve to subclavius

Question 5

Innervates the anterior compartment of the arm, and pierces the brachialis, biceps brachii, and coracobrachialis

Answer 5

Musculocutaneous nerve

Question 6

Innervates the anterior compartment of the forearm except flexor carpi ulnaris and ulnar half of flexor digitorum profundus

Answer 6

median nerve

Question 7

Innervates the glenohumeral joint, teres minor and deltoid muscles, and the skin of the superolateral arm

Answer 7

Axillary nerve

Question 8

Damaged when there is winging of the scapula

Answer 8

Long thoracic nerve

Question 9

Damaged when there is inability to raise arm beyond horizontal, or when the scapula is father away from the midline

Answer 9

Dorsal scapular nerve (C5)

Question 10

Erb duchenne palsy is due to damage in the ____; waiter’s tip

Answer 10

Upper/superior trunk

Question 11

Klumpke’s palsy is due to damage in the ____; claw hand position due to loss of intrinsic hand muscles

Answer 11

Lower trunk (ulnar nerve)

Question 12

Critche’s palsy/ saturday night palsy is due to damage on the ___

Answer 12

posterior cord (radial nerve)

Question 13

Carpal tunnel syndrome is due to damage to the ___ due to compression

Answer 13

Median nerve