Muscles of forearm and hand

abducts thumb

• adbuctor pollicis brevis
• extensor digiti minimi

Moves skin on medial border toward midline of palm

• Palmar Interossei
• palmaris brevis

extends elbow

• anconeus
• supinator

flexes little finger

• opponens digiti minimi
• flexor digiti minimi brevis

flexes little finger

• opponens digiti minimi
• flexor digiti minimi brevis

extends fingers and hand

• extensor digitorum
• extensor indicis

opposition of thumb

• adductor pollicis
• opponens pollicis

extends and adducts wrist

• adductor pollicis
• extensor carpi ulnaris

pronates forearm

• pronator quadratus 
• palmer interossei

flexes and adducts wrist

• flexor carpi ulnaris
• flexor digitorum superficialis