The glenohumeral joint is a ball-and-socket joint located in the shoulder. It connects the humerus, the upper arm bone, to the scapula, or shoulder blade. This joint allows for a wide range of motion, enabling movements such as lifting, rotating, and reaching. The glenohumeral joint is stabilized by several structures, including ligaments, tendons, and the rotator cuff muscles. These components work together to maintain joint stability while allowing flexibility. Due to its extensive range of motion, the glenohumeral joint is susceptible to injuries, such as dislocations and rotator cuff tears.