Shoulders are the joints that connect the upper arms to the torso, allowing for a wide range of motion. They consist of several bones, including the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). The shoulder joint is a ball-and-socket joint, which enables movements such as lifting, rotating, and reaching. The muscles surrounding the shoulders, including the deltoids and rotator cuff muscles, provide stability and strength. Proper shoulder function is essential for many daily activities, from lifting objects to throwing a ball. Injuries to the shoulder can affect mobility and require rehabilitation for recovery.