The rotator cuff is a combination of muscles and tendons that link your upper arm bone, the humerus, to your shoulder blades. The rotator cuff also holds your upper arm bone in place in your shoulder ...

What Is a Rotator Cuff? Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your ...

Rotator cuff tendinitis, or tendonitis, affects the tendons and muscles that help move your shoulder joint. If you have tendinitis, it means that your tendons are inflamed or irritated. Rotator cuff ...