Extensor carpi radialis brevis
Musculus extensor carpi radialis brevis · Krátký vřetenní natahovač zápěstí
Muscles
Looks like
A forearm muscle from the outer elbow bump to the base of the middle finger's hand bone.
What it does
Straightens the wrist and steadies it during grip.
Keeping it well
The main site of tennis elbow; eases over months with load management and graded exercise.