olecranon

The large process on the upper end of the ulna that projects behind the elbow joint and forms the point of the elbow.

A process forming the upper or proximal end of the ulna.

The large process at the proximal end of the ulna which projects behind the articulation with the humerus and forms the bony prominence of the elbow.

The bony process at the top of the ulna forming the point of the elbow.

process of the ulna that forms the outer bump of the elbow and fits into the fossa of the humerus when the arm is extended