The humerus is the long bone of your upper arm. It extends from your shoulder to your elbow, where it joins with the ulna and radius bones of your forearm. A humerus fracture refers to any break in ...

The humerus bone is located in the upper arm between the elbow and shoulder. It’s the longest bone in the arm, and supports movement in the arm and shoulder. Keep reading to learn more about your ...

Hinge joints allow flexion and extension only. Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl. The knee flexes ...