Your arms contain many muscles that work together to allow you to perform all sorts of motions and tasks. Each of your arms is composed of your upper arm and forearm. Your upper arm extends from your ...

You have 20 muscles in your forearm, the part of your arm between your elbow and your hand. They help you move your arms, hands, and fingers and perform many of the tasks of daily life. You can strain ...

The rotator cuff is a set of muscles that helps the arm and shoulder move. Injuries to the rotator cuff are fairly common, but many effective treatments are available. These muscles work together to ...