The pronator teres is a muscle within the superficial compartment of the anterior forearm. The lateral border of the pronator teres forms the medial border of the cubital fossa – an anatomical area located over the elbow. Attachments: Originates from the medial epicondyle of the humerus and the coronoid process of the ulna. It attaches laterally to the mid-shaft of the radius. Actions: Pronation of the forearm. Innervation: Median nerve. Blood supply: Ulnar artery By TeachMeSeries Ltd (2025) Fig 1The superficial muscles of the anterior forearm. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Print Article Rate This Article