Lucy: arm bones With dangling ... stable gait. The left and right prints lie close together -- as they would for a human, but not a sideward-swaying chimp. Fine details also reveal a human ...

This may affect your left or right arm alone, or it can happen to both arms at the same time. There are four muscles that ...

Medically reviewed by Lauren Schlanger, MD Arm pain may be caused by injuries, overuse, arthritis, and nerve problems. Most ...

To really know someone, you have to get right down to their bones ... there is a significant difference between their lower arm bones. Elite athletes are good examples of this.

bones also work together with muscles and tendons to get the body moving. For example, the humerus, radius and ulna work with your biceps and triceps to curl or extend your arm. Having many joints ...