Origin: Volar surface of the Radius, the adjacent interosseous membrane and the medial border of the coronoid process of the Ulna
Insertion: Palmar base of the thumb Thumb Distal Phalanx
Function: Flexes the thumb Interphalangeal Joint (primary) and Metacarpophalangeal Joint (weak)
Nerve: Anterior Interosseous branch of Median Nerve
Artery: Anterior Interosseous artery