National Skeletal Muscle Research Center

Anterior- medial view of a 3D rendering of the human forearm (humerus left and carpal bones right). The pronator teres muscle is pictured (red), along with the extensor carpi radialis brevis (blue), and the extesnor pollicis longus (green). Magnetic resonance images of the entire arm can be acquired to develop models of a joint or joint-muscle system.