The olecranon fossa is a small depression located at the distal end of the humerus. There are several synonyms for this anatomical structure, including the coronoid fossa, the radial fossa, and the intercondylar fossa. These names describe the fossa's proximity to other structures in the elbow joint, such as the coronoid and radial process of the ulna. In addition to its anatomical importance, the olecranon fossa also plays a role in the movement of the arm, allowing for the proper extension and flexion of the elbow joint. Understanding the synonyms for the olecranon fossa is essential for medical professionals and students studying anatomy and physiology.