Olecranon process: The olecranon process is

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. During adolescence, an elbow injury can damage the growth plate, or olecranon underdevelopment may occur after repeated microtrauma (especially in athletes). The olecranon is the proximal articular portion of the ulna. Along with the coronoid process, it forms the greater sigmoid (semilunar) notch which articulates with the humerus to provide flexion and extension of the elbow. Fractures of the olecranon are a relatively common injury in adults; its subcutaneous location leaves it vulnerable to injury from a direct blow. Fractures sustained range from simple nondisplaced fractures to complex open fracture dislocations. Olecranon fractures ... Olecranon is a bony process on the ulna that forms the elbow. Learn about its structure, function, clinical significance, and etymology from this article.