The abductor digiti minimi is a small muscle located in the hand, specifically in the hypothenar region. Its primary function is to facilitate the movement of the little finger, allowing it to move away from the other fingers. This muscle plays a crucial role in hand dexterity and grip. In addition to its role in finger movement, the abductor digiti minimi also helps stabilize the little finger during various hand activities. It is innervated by the ulnar nerve, which is responsible for the motor control of many hand muscles. Proper functioning of this muscle is essential for tasks that require fine motor skills.