For example, the humerus, radius and ulna work with your biceps and triceps to curl or extend your arm. Having many joints allows for complex fluid movements so we can do things like kick a ball ...

The humerus is the long bone in the upper arm that extends from your shoulder to your elbow joint. The radius and ulna in the forearm run parallel, connecting your elbow to your wrist. These bones ...

Alexander Creighton, MD, about the procedure. Your elbow is made up of three bones: the humerus, in the upper arm, and the ulna and radius, both in the lower arm. The ulnar collateral ligament ...

There was also hypesthesia in the area supplied by the ulnar nerve (digits (IV and V). Conventional radiography of the left shoulder showed a proximal fracture of the humerus. CT angiography of ...