Triceps brachii
powerful forearm extensor; antagonist of forearm flexors ( brachialis and biceps brachii
Anconeus
abducts ulna during forearm pronation; extends elbow
Biceps brachii
flexion powerful of elbow and supination of forearm; it turns the corkscrew and pulls and cork ; weak arm flexor
Brachioradialis
synergist in forearm flexion
Brachialis
a major flexor of forearm
Pronator teres
acts synergistically with pronator quadratus to pronate forearm; weak arm flexor
Flexor carpi radialis
powerful flexor of wrist; abducts hand
Palmaris longus
flexes wrist weak; tenses skin and fascia of palm
Flexor carpi ulnaris
powerful flexor of wrist; adducts hand
Flexor digitorum superficialis
flexes wrist and middle phalanges of finger 2-5
Extensor carpi radialis longus
extends and abducts wrist
Extensor carpi radialis brevis
extends and abducts wrist; steadies wrist during finger flexion
Extensor digitorum
prime mover of finger extension; extends wrist; can flare abduct fingers
Extensor carpi ulnaris
extends and adducts the wrist