Abductor digiti minimi muscle of hand

Abductor digiti minimi muscle of hand

The abductor digiti minimi muscle of hand is a muscle located in the hand that plays an important role in the movement and control of the little finger. It is one of the intrinsic muscles of the hand and is responsible for the abduction and flexion of the little finger.

Anatomy

The abductor digiti minimi muscle of hand originates from the pisiform bone, which is a small bone located in the wrist. It then inserts into the base of the proximal phalanx of the little finger. The muscle is innervated by the deep branch of the ulnar nerve.

Function

The main function of the abductor digiti minimi muscle of hand is to abduct the little finger away from the other fingers. It also assists in flexing the little finger, allowing it to move towards the palm of the hand. These movements are important for various activities such as grasping objects and playing musical instruments.

Clinical Significance

Injuries or conditions affecting the abductor digiti minimi muscle of hand can result in weakness or loss of function of the little finger. This can lead to difficulties in performing fine motor tasks that require precise control of the little finger, such as writing or playing certain musical instruments.

See Also

• Hand muscles
• Intrinsic muscles of the hand
• Ulnar nerve