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 ...

Even the ultimate Harry Potter fan -- the young man with dark hair and horn-rimmed glasses, say, who has collected the books and videos, the scarves and umbrellas, the Hogwarts backpack -- will never ...