Wrist Extensors – Hand and Forearm Pain

The extensors of the hand and the wrist include extensor carpi ulnaris, extensor carpi radialis longus, and extensor carpi radialis brevis. All three run most of the length of the forearm. Collectively, along with brachioradialis, they extend the hand at the wrist. Their chief function is to prevent wrist flexion, working synergistically with the finger flexors, during hand grasp.