Run a finger down the center of the forearm, curl the fingers, and flex the wrist. For many people, a thin cord jumps into view, tight as a guitar string under the skin. It feels deliberate, almost ...

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 ...

The arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...