The extensor carpi radialis brevis muscle aids in moving the hand. Specifically, it abducts and extends the hand at the wrist joint. The muscle works in concert with the extensor carpi radialis longus ...

Extensor tendons are found just under the skin of the hand or the top of the feet. Extensor tendonitis is an inflammation of these tendons, and many factors can cause it. Tendons are bands of tissue ...