Anatomy of extensor pollicis brevis

Extensor carpi radialis brevis muscle Anatoy Extensor carpi radialis brevis (ECRB) is a short muscle emerging underneath the extensor carpi radialis longus and both muscles share a common tendinous synovial sheath[. It is an extensor muscle located superficially at the posterior compartment of the forearm. Origin It originates from the common extensor tendon at the…