Origin
Humerus.
Insertion
3rd metacarpal bone.
Blood supply
Radial artery.
Nerve supply
Posterior interosseous nerve.
Action
It bends the wrist backwards and sideways toward the thumb side. Also extends the wrist.
Disease/Injury
Activities involving repetitive grasping can injure the extensor carpi radialis brevis muscle.
Muscle Exercise
Exercises like wrist extension using a dumbbell and wrist extensor stretch increases the strength of the muscle.
Interesting Facts
NA
