Question

1.)Name the muscle(s) that originates on the lateral epicondyle of humerus and adjacent ulna and inserts...

1.)Name the muscle(s) that originates on the lateral epicondyle of humerus and adjacent ulna and inserts on the anterior surface of the proximal radius.

2.)What is the action of the muscle in #1 above?

3.)Which other muscle in the elbow area is also a prime mover for the motion in #2 above?

Science   Anatomy-And-Physiology   
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Answer #1

Ans 1) The supinator muscle is the one which originates on the lateral epicondyle of humerus and on the adjacent ulna and it inserts into the anterior surface o proximal radius. It is a broad muscle which is located within the posterior side of forearm and it helps with the supination of the forearm. It is cylindrical in shape and it curves around upper third of the radius bone. Supinator is one of the muscles which is located within the posterior or extensor forearm compartment. The muscle attaches to radial collateral ligament as well as radial annular ligaments.

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