Abductor minimi digiti muscle (hand)

Abductor minimi digiti muscle (hand)

The abductor minimi digiti muscle is a muscle located in the hand. It is responsible for the abduction of the little finger, which means it moves the little finger away from the other fingers. This muscle plays an important role in hand movements and grip strength.

Anatomy

The abductor minimi digiti muscle is located on the ulnar side of the hand, specifically in the hypothenar eminence. It originates from the pisiform bone and the flexor retinaculum, which is a band of connective tissue that holds the tendons in place at the wrist. The muscle then inserts into the base of the proximal phalanx of the little finger.

Function

The main function of the abductor minimi digiti muscle is to abduct the little finger. This means it moves the little finger away from the other fingers, allowing for independent movement. It also assists in flexion and extension of the little finger.

Clinical Significance

Injuries or conditions affecting the abductor minimi digiti muscle can result in weakness or limited movement of the little finger. This can impact hand function and grip strength. Common conditions that may affect this muscle include trauma, overuse injuries, and certain neurological conditions.

See Also

• Hand anatomy
• Muscles of the hand