Upper arm, forearm and hand

Question 1

What muscles originate from the musculocutaneous nerve?

Answer 1

Biceps brachii (C5, C6, C7)
Coracobrachialis (C5, C6, C7)
Brachialis (C5, C6)

Question 2

What muscles originate from the radial nerve?

Answer 2

Brachialis (C5, C7)
Triceps brachii (C6, C7, C8)
Anconeous  (C7, C8, T1)
Extensor carpi radialis longus (C6, C7)
Brachioradialis (C5, C6, C7)

Question 3

What muscles originate from the deep branch of the radial nerve?

Answer 3

(All C7, C8)
Extensor carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris
Supinator
Extensor indicis
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis

Question 4

What muscles originate from the median nerve?

Answer 4

Pronator teres (C6, C7)
Flexor carpi radialis (C6, C7)
Palmaris longus (C7, C8)
Flexor digitorum superficialis (C7, C8, T1)
Flexor digitorum profundus (lateral part) (C8, T1)
Flexor pollicis longus (C8, T1)
Pronator quadratus  (C8, T1)
Lumbricals (1st & 2nd) (C8, T1)

Question 5

What muscles originate from the recurrent branch of the median nerve?

Answer 5

(All C8, T1)
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis (superficial head)

Question 6

What muscles originate from the ulnar nerve?

Answer 6

Flexor carpi ulnaris (C7, C8)

Flexor digitorum profundus (medial part) (C8, T1)

Question 7

What muscles originate from the deep branch of the ulnar nerve?

Answer 7

(All C8, T1)
Flexor pollicis brevis (deep head)
Adductor pollicis
Abductor digiti minimi 
Flexor digiti minimi brevis
Opponens digiti minimi 
Lumbricals (3rd & 4th)
Dorsal interossei
Palmar interossei