The common extensor tendon is a tendon shared by a number of extensor muscles in the forearm. It attaches to the lateral epicondyle of the humerus.
It serves as the origin (in part) for a number of muscles (largely in the posterior compartment of the forearm:
spaces (Quadrangular space, Triangular space, Triangular interval) • Clavipectoral triangle
compartment of arm (Posterior, Anterior)
compartment of forearm (Posterior, Anterior)
anterior: Flexor retinaculum • Carpal tunnel • Palmar aponeurosis • Ulnar canal • Synovial sheath (Common synovial sheath for the flexor tendons])
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