Origin
Humerus – medial epicondyle.
Insertion
2nd and 3rd metacarpals.
Blood supply
Ulnar artery.
Nerve supply
Median nerve.
Action
This muscle causes flexion of the forearm at the wrist joint.
Disease/Injury
Overuse of muscle leads to tendinitis, causing pain.
Muscle Exercise
This muscle can be strengthened by performing wrist curls exercise.
Interesting Facts
You use the muscle to say bye by waving your hand side to side at the wrist.
