The shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles, ...

The shoulder, or pectoral girdle, is a structure that plays an essential role in many functions and movements. The three shoulder bones include the scapula, the clavicle, and the humerus. A shoulder ...

The shoulder joint is the articulation between the thorax and the arm. This joint is one of the most complex and mobile joints of the body as it is comprised of four articulations, plus muscles, ...

Shoulder instability occurs when your shoulder joint (ball and socket) has lost is normal alignment (ball resting symmetrically in the socket), which causes your arm to lose its support. The most ...

The shoulder is made up of three bones (humerus, scapula and clavicle), which connect with each other on four joint surfaces. The main joint is that between the scapula (shoulder-blade) and the upper ...