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Extensor Digitorum Muscle
By: Tim Barclay, PhD
Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 26, 2015
The extensor digitorum muscle is an extrinsic muscle of the hand that originates at the lateral epicondyle in the elbow. The muscle crosses the posterior forearm to insert on the posterior of the phalanges, serving to extend the fingers and the wrist.
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