Muscles of the thumb

Intrinsic (thenar) Abductor Pollicis Brevis Adductor Pollicis First Dorsal Interosseous Flexor Pollicis Brevis Opponens Pollicis Extrinsic Abductor Pollicis Longus Extensor Pollicis Brevis Extensor Pollicis Longus Flexor Pollicis Longus