Anatomy: upper limb

Question 1

What are the 3 muscles of the anterior compartment of the arm?

Answer 1

Biceps brachii
Brachialis
Coracobrachialis

Question 2

The anterior compartment muscles of the forearm are innervated by the ___________ nerve.

Answer 2

Musculocutaneous

Question 3

______ _____ is the only muscle of the posterior arm compartment

Answer 3

triceps brachii

Question 4

All muscles of the posterior compartment of the forearm are innervated by the _______ nerve

Answer 4

radial nerve

Question 5

What are the seven muscles of the superficial layer of the posterior compartment of the forearm (lateral to medial, based on distal tendons)?

Answer 5

1. Brachioradialis
2. Extensor carpi radialis longus
3. Extensor carpi radialis brevis
4. Extensor digitorum
5. Extensor digiti minimi
6. Extensor Carpi ulnaris
7. Anconeus

Question 6

What are the five muscles of the deep layer of the posterior compartment of the forearm (lateral to medial)?

Answer 6

1. Supinator
2. Abductor pollicis longus
3. Extensor pollicis brevis
4. Extensor pollicis longus
5. Extensor indicis