Extensor Digiti Minimi Muscle

By: Tim Barclay, PhD

Medically reviewed by: Stephanie Curreli, MD, PhD

Last Updated: Jun 26, 2015

The extensor digiti minimi muscle is a long, thin muscle of the forearm that arises from the humerus bone and inserts with the little finger’s extensor expansion. It serves to straighten the little or pinkie finger. Muscle extension occurs when the angle between the bones is increased - as when the forearm is aligned with the arm. An extensor, then, is any muscle serving to extend a bodily part (usually Continue Scrolling To Read More Below...

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Continued From Above... a limb) away from the body or when a digit is extended from its base.

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Extensor Digiti Minimi Muscle

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