Opponens digiti minimi muscle

The opponens digiti minimi muscle is a muscle in the hand that turns the little finger to a position opposed to the thumb.

Origin
The opponens digiti minimi originates from the wrist, attaching to the flexor retinaculum and the hook of the hamate bone.

Insertion
The opponens digiti minimi inserts on the little finger, at the ulnar side of the shaft of the fifth metacarpal.

Action
The opponens digiti minimi flexes and lateral|laterally rotates the little finger at the carpometacarpal and metacarpophalangeal joints.

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