Definition
The rotator cuff is a group of four muscles and their tendons that surround the shoulder joint. Think of it as the shoulder's all-star team, providing stability and a wide range of motion. It’s not just one muscle; it’s a coordinated group working together. These muscles help you lift, rotate, and reach with your arm. The rotator cuff keeps the head of your humerus (upper arm bone) snug in the shoulder socket. It's like the gears in a well-oiled machine, ensuring smooth and controlled movement. ⚙️