Abductor digiti minimi (hand)

Hands

Origin: Pisiform bone
Insertion: Inner side of the base of the proximal phalanx of the little finger
Action: Abducts the little finger (spreads it away from the ring finger)
Nerve supply: Deep branch of the ulnar nerve (C8–T1)

The outermost muscle on the little-finger edge of the palm. It spreads the little finger and forms part of the fleshy pad on that side of the hand.

Exercises that train the abductor digiti minimi (hand)

No exercise in this guide targets the abductor digiti minimi (hand) directly yet.

Last updated 18 October 2026. For education only — not medical advice, and not reviewed by a clinician.