What is opponens digiti minimi?

Opponens digiti minimi is a muscle located in the hand. It is one of the intrinsic muscles of the hand, meaning that it is entirely contained within the hand itself.

This muscle's primary function is to help the pinky finger move towards the thumb in a motion called opposition. This movement is important for tasks such as holding and grasping objects.

Opponens digiti minimi is innervated by the ulnar nerve and receives its blood supply from branches of the ulnar artery.

Weakness or injury to the opponens digiti minimi muscle can result in difficulties with gripping and manipulating objects with the pinky finger. Strengthening exercises and physical therapy can help improve function in this muscle.