The common extensor tendon serves as the upper attachment (in part) for the superficial muscles that are located on the posterior aspect of the forearm:
The tendon of extensor carpi radialis brevis is usually the most major tendon to which the other tendons merge.[2]
Function
The common extensor tendon is the major attachment point for extensor muscles of the forearm. This enables finger extension and aids in forearm supination.
^Standring, Susan (2008). Gray's Anatomy : The Anatomical Basis of Clinical Practice (fortieth ed.). London: Churchill Livingstone. ISBN978-0-443-06684-9.
^Bestic, Joseph M. (2018-01-01), Morrey, Bernard F.; Sanchez-Sotelo, Joaquin; Morrey, Mark E. (eds.), "8 - Magnetic Resonance Imaging of the Elbow", Morrey's the Elbow and its Disorders (Fifth Edition), Philadelphia: Content Repository Only!, pp. 93–100, ISBN978-0-323-34169-1, retrieved 2020-11-03