NTsportstherapy on Instagram: "The supinator is a muscle located in the forearm that is responsible for rotating the forearm to turn the palm upward, a motion called supination. This muscle wraps around the upper part of the forearm near the elbow and works in conjunction with other muscles, like the biceps brachii, to achieve this movement. Origin: It originates from the lateral epicondyle of the humerus and the ulna. Insertion: It attaches to the lateral, posterior, and anterior surfaces of th

Supinator - Origin, Insertion, Action, 3D Model | AnatomyZone