Origin:
Humeral head from common forearm flexor tendon and Lateral epicondyle
Ulnar head from the olecranon and the dorsal border of the ulna
Insertion: pisiform (as a sesamoid bone), Hamate and the volar base of the Small Metacarpal
Function: flexion and ulnar deviation of the Wrist, along with other muscles which flex the wrist and ulnar deviate the wrist, weak flexor of the elbow along with other muscles which flex the elbow
Nerve: Ulnar Nerve
Artery: Posterior Ulnar Recurrent artery