Supinator muscle - Origin, Insertion, Innervation, Function & Definition - Human Anatomy |Kenhub

Find more videos at: Subscribe to our YouTube channel: Supinator muscle has a complex origin tendon arising from the lateral epicondyle of the humerus (superficial part) and the proximal ulna (deep part). Furthermore, it also attaches to the radial collateral ligament and radial annular ligament. From there, the muscle curls dorsally around the neck of the radius and inserts at the anterior side between the radial tuberosity and the insertion of the pronator tere