Brachial plexus innervations

Question 0

long thoracic innervates

Answer 0

serratus anterior

Question 1

Dorsal Scapular nerve innervates

Answer 1

rhomboids and occasionally levator scapula

Question 2

suprascapular nerve innervates

Answer 2

supraspinatus and infraspinatus muscles and

glenohumeral joint

Question 3

subclavian nerve innervates

Answer 3

subclavius and sternoclavicular joint

Question 4

lateral pectoral nerve innervates

Answer 4

pectoralis major

Question 5

musculocutaneous nerve innervates

Answer 5

muscles of the anterior compartment of the arm
(coracobrachialis, biceps brachii, brachialis)
skin of lateral aspect of forearm

Question 6

median nerve innervates

Answer 6

muscles of anterior forearm compartment
(except for flexor carpi ulnaris and ulnar half of flexor digitorum profundus)
5 intrinsic muscles of thenar half of palm and palmar skin

Question 7

medial pectoral nerve innervates

Answer 7

pectoralis minor and sternocostal part of pectoralis major

Question 8

medial cutaneous nerve of the arm innervates

Answer 8

skin of medial side of arm as far as medial epicondyle of humerus and olecranon of ulna

Question 9

median cutaneous nerve of forearm innervates

Answer 9

skin of medial side of forearm to wrist

Question 10

ulnar nerve innervates

Answer 10

flexor carpi ulnaris and ulnar half of flexor digitorum profundus (forearm)
most intrinsic muscles of hand
skin of hand medial to the axial line of digit 4

Question 11

upper subscapular nerve innervates

Answer 11

superior portion of subscapularis

Question 12

lower subscapular nerve innervates

Answer 12

inferior portion of subscapular and teres major

Question 13

thoracodorsal nerve innervates

Answer 13

the latissimus dorsi

Question 14

the axillary nerve innervates

Answer 14

the glenohumoral joint
teres minor
deltoid
skin of superolateral arm

Question 15

radial nerve innervates

Answer 15

all muscles of the posterior compartments of the arm and forearm
skin of posterior and inferolateral arm, posterior forearm, dorsum of hand lateral to the axial line of digit 4

Question 16

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Answer 16

Mark