Abductor digiti minimi muscle (Hand)

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The abductor digiti minimi muscle is a muscle in the hand that abducts the little finger (pulls it away from the rest of the hand). It can be easily palpated at the outside edge of the hand below the little finger. There is an equivalent muscle in the foot with the same name, the abductor digiti minimi muscle (Foot).


Abductor digiti minimi muscle (Hand) Flexor digiti minimi brevis muscle (Hand) Lumbrical muscles (Hand) Lumbrical muscles (Hand) Lumbrical muscles (Hand) Lumbrical muscles (Hand) Palmaris brevis muscle Flexor pollicis brevis muscle Abductor pollicis brevis muscle Opponens pollicis muscle Adductor pollicis muscle'The muscles of the hand.'

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Anatomy diagram of a left hand, with the palm facing forward.

Contents

Origin

The abductor digiti minimi originates from several locations in the carpus - the lower section of the hand that contains the wrist bones. It attaches to the pisiform bone, the pisohamate ligament between the pisiform bone and the hamate bone, and the flexor retinaculum.

Insertion

The abductor digiti minimi inserts on the little finger, at the base of the ulnar side (the side opposite the rest of the hand) of the proximal phalanx.

Innervation

The abductor digiti minimi is innervated by the deep branch of the ulnar nerve (C8 and T1).

See also

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