Extensor indicis

Definition

The extensor indicis is a muscle in the forearm that extends along the index finger, aiding in its extension. It originates from the ulna and inserts into the extensor expansion of the index finger.

Related terms

Extensor Digitorum:

A muscle in the forearm that extends the fingers and hand.

Flexor Digitorum Profundus: A muscle in the forearm that flexes the fingers.

Ulna:

One of the two long bones in the forearm, serving as an origin point for muscles like the extensor indicis