Muscles of the Forearm That Move Wrist, Hand & Fingers Synergist and antagonist
Abductor pollicis longus
Action: Abducts thumb
Extensor digitorum
Action: Extends fingers Antagonist: Flexor digitorum profundus
Extensor indicis
Action: Extends index finger
Extensor pollicis longus
Action: Extends thumb Antagonist: Flexor pollicis longus
Extensor pollicis brevis
Action: Extends thumb Antagonist: Flexor pollicus longus
Extensor carpi radialis longus
Action: Extends wrist Synergist: Extensor carpi radialis brevis Antagonist: Flexor carpi radialis
Extensor carpi radialis brevis
Action: Extends wrist Synergist: Extensor carpi radialis longus Antagonist: Flexor carpi radialis
Extensor carpi ulnaris
Action: Extends wrist Synergist: Extensor carpi radialis longus Antagonist: Flexor carpi ulnaris
Flexor digitorum profundus
Action: Flexes fingers Synergist: Flexor digitorum superficialis Antagonist: Extensor digitorum
Flexor digitorum superficialis
Action: Flexes fingers and eventually wrist Synergist: Flexor digitorum profundus Antagonist: Extensor digitorum
Flexor pollicis longus
Action: Flexes thumb Antagonist: Extensor pollicis longus
Flexor carpi ulnaris
Action: Flexion at wrist Synergist: Flexor carpi radialis Antagonist: Extensor carpi radialis longus
Flexor carpi radialis
Action: Flexion at wrist Synergist: Flexor carpi ulnaris Antagonist: Extensor carpi ulnaris
Palmaris longus
Action: Flexion at wrist Synergist: Flexor carpi ulnaris Antagonist: Extensor carpi ulnaris
Pronator teres
Action: Pronation of palm Synergist: Pronator quadratus Antagonist: Supinator
Pronator quadratus
Action: Pronation of palm Synergist: Pronator teres Antagonist: Supinator
Supinator
Action: Supinates palm Synergist: Biceps brachii Antagonist: Pronator quadratus
