The humerus of the upper arm and the paired radius and ulna of the forearm meet to form the elbow joint, a hinge joint in the upper arm. The bony prominence at the tip of the elbow is the olecranon process of the ulna. The antecubital fossa lies over the anterior aspect of the elbow.
This is a companion discussion topic for the original article at https://patient.info/doctor/orthopaedics/elbow-injuries-and-fractures