<p>Flexed biceps brachii muscle, with the forearm pronated. Photo of right arm of male 27 year old wrestler. (27K)
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See also the related image <a href="//commons.wikimedia.org/wiki/File:Arm_flex_supinate.jpg" title="File:Arm flex supinate.jpg">Image:Arm flex supinate.jpg</a>.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:EncycloPetey" title="User:EncycloPetey">EncycloPetey</a> assumed (based on copyright claims).
CC BY 2.5
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