Olecranon process

Definition

The olecranon process is a prominent, pointed projection at the upper end of the ulna, part of the elbow joint where it connects with the humerus. It serves as an attachment point for muscles and ligaments that enable elbow movement.

Related terms

Ulna:

One of the two long bones in the forearm, running parallel to the radius and forming part of the elbow joint.

Humerus:

The long bone in the upper arm that extends from the shoulder to the elbow, connecting with the ulna at its lower end.

Triceps brachii: A major muscle of the back of the upper limb responsible for extension of the elbow; attaches partially to the olecranon process