When studying how fossil hominids moved, researchers usually analyze the morphology of bones—which is crucial for understanding the evolution of bipedalism—focusing mainly on muscle insertion sites.

Your body is made up of hundreds of joints. These joints attach bones together and help your body move. The sternoclavicular joint is one of four joints in your shoulder. When the sternoclavicular ...

Elbows are made up of groups of muscles, bones, ligaments, and tendons. The ligaments in your elbows keep your elbow joints stable and allow your elbow to move properly. When you sprain your elbow, ...

Shoulder injuries and different types of arthritis may cause acromioclavicular (AC) joint pain. The AC joint in the shoulder connects the collarbone to part of the shoulder blade. One of the AC ...

An anterior cruciate ligament injury is a serious knee injury that often affects young, physically active people. On April 30 ...

An anterior cruciate ligament injury is a serious knee injury that often affects young, physically active people. On April 30 ...