Origin (all profundi): Medial and anterior surface of the Ulna, the deep forearm fascia and the radioulnar interosseous membrane
Insertion: Palmar base of the ring finger Distal Phalanx
Function: Flexes the ring finger DIP joint, the PIP joint, the MCP joint (only after flexion has been initiated) and the Wrist along with other muscles which flex the wrist
Nerve: Ulnar Nerve
Artery: the Anterior Interosseous artery and Muscular Branches of Ulnar Artery