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Deltoid Muscle

The deltoid muscle is the triangular muscle that covers the upper arm and shoulder joint. It moves the upper arm forward, backward, to the side, and away from the body.

By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer Patrick J. McMahon, MD - Orthopedic Surgery
Current as of August 28, 2013

WebMD Medical Reference from Healthwise

Last Updated: August 28, 2013
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