The Extensor Carpi Radialis Brevis is a muscle located in the forearm. It plays a crucial role in extending and stabilizing the wrist joint. This muscle originates from the lateral epicondyle of the humerus and inserts into the base of the third metacarpal bone. Functionally, the Extensor Carpi Radialis Brevis helps in movements such as wrist extension and radial deviation, which is the movement of the wrist towards the thumb side. It is often involved in activities that require grip strength and wrist stability, making it important for various sports and daily tasks.