Motor muscles of the forearm

FLEXION

biceps brachialis (short head)

brachialis

brachioradialis

round pronator

long radial extensor carpus

EXTENSION

triceps

anconeus

READY

biceps brachialis (short head)

supinator

brachioradialis

long abductor of the thumb

long extensor of the thumb

SUPINATION

round pronator

square pronator

radial flexor carpus

long radial extensor carpus

brachioradialis

long handheld

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