Distal sites of innervation for nerves (upper extremity)

Question 1

What are the distal sites of innervation of the axons in the . Musculocutaneous nerve (at its origin)?

Answer 1

Biceps brachii (long head), Brachialis

Question 2

What are the distal sites of innervation of the axons in the Radial nerve (at its origin)?

Answer 2

Triceps brachii (long head), Supinator , Extensor carpi ulnaris, Abductor pollicis longus, Extensor pollicis longus

Question 3

What are the distal sites of innervation of the axons in the Lower subscapular nerve (at its origin)?

Answer 3

None of the above (find out what it is)

Question 4

What are the distal sites of innervation of the axons in the Long thoracic nerve (at its origin)?

Answer 4

None of the above (find out what it is)

Question 5

What are the distal sites of innervation of the axons in the Median nerve (at its origin)?

Answer 5

Pronator teres, Flexor digitorum superficialis, Flexor pollicis longus, Abductor pollicis brevis, Opponens pollicis

Question 6

What are the distal sites of innervation of the axons in the Median nerve (as it traverses the two heads of the pronator teres)?

Answer 6

Flexor pollicis longus, Abductor pollicis brevis, Opponens pollicis

Question 7

What are the distal sites of innervation of the axons in the Ulnar nerve (at its origin)?

Answer 7

Opponens digiti minimi, Adductor pollicis, 1st dorsal interosseous

Question 8

What are the distal sites of innervation of the axons in the Ulnar nerve (at the wrist)?

Answer 8

Opponens digiti minimi, Adductor pollicis, 1st dorsal interosseous

Question 9

What are the distal sites of innervation of the axons in the Recurrent branch of median nerve (at its origin)?

Answer 9

Abductor pollicis brevis, Opponens pollicis