A Flex the wrist (radiocarpal joint)Adduct the wrist (radiocarpal joint)Assist to flex the elbow (humeroulnar joint)O Humeral head: Common flexor tendon from medial epicondyle ofhumerusUlnar head: Posterior surface of proximal two-thirds of ulnaI Pisiform, hook of the hamate, and base of fifth metacarpal a superficial flexor muscle of the forearm that flexes and adducts the hand Flexor Carpi Ulnaris