Useless fact
What is the bony tip of the elbow called?
The bony tip of the elbow is anatomically called the olecranon.
The term olecranon comes from the Greek words 'olene', meaning elbow, and 'kranon', meaning head, literally translating to the head of the elbow. This prominent, curved bony structure is located at the upper end of the ulna, which is one of the two major bones of the human forearm. In medical science, its anatomical role was documented by ancient physicians such as Galen, who detailed the skeletal structure of the human limbs. The olecranon fits into a specific depression in the humerus bone called the olecranon fossa when the arm is fully extended. This structural alignment prevents the hyperextension of the elbow joint, acting as a natural physical stopper. Because it sits directly beneath the skin with very little protective tissue or fat, it is highly susceptible to fractures from direct impacts, such as falling onto a hard surface. It is also the site where the triceps brachii muscle attaches, which is the muscle responsible for straightening the arm.
Why this is true — The term olecranon is the standard anatomical designation for the bony projection at the elbow, as documented in major medical dictionaries and anatomical texts.
Sources
- Anatomy, Shoulder and Upper Limb, Elbow Olecranon StatPearls Publishing