distribution of the median and ulnar nerves

median nerve (forearm)

6 and ½ muscles of the anterior forearm
-all anterior compartment muscles except the flexor carpi ulnaris and the radial half of the flexor digitorum profundus

median nerve (hand)

½ LOAF
½ L: 1st and 2nd lumbrical muscles
O: opponens pollicis muscle
A: abductor pollicis brevis muscle
F: flexor pollicis brevis muscle

ulnar nerve (forearm)

1 and ½ exceptions: the flexor carpi ulnaris and the ulnar half of the flexor digitorum profundus

ulnar nerve (hand)

all muscles of the hand not innervated by the median nerve
-adductor pollicis muscles
-hypothenar muscles
-3rd and 4th lumbricals
-palmar interossei
-dorsal interossei