Interactive 3D model and summary notes on the anatomy of the extensor carpi radialis longus muscle covering its origin, insertion, action, innervation and blood supply.
The pronator teres muscle is one of 4 muscles within the superficial layer of the anterior compartment of the forearm, and is responsible for pronation of the forearm and flexion at the elbow joint. The other muscles in this layer are the flexor carpi ulnaris, palmaris longus and flexor carpi radialis. It is the most laterally located muscle of the superficial compartment, located lateral to the flexor carpi radialis. The muscles of the superficial layer share a common origin from the medial epicondyle of the humerus. The pronator teres has two heads: Humeral head (larger and more superficial)Ulnar head (thinner and smaller)