The elbow joint is where three bones meet: the humerus, ulna, and radius. The bone in the arm that connects at the elbow is the humerus.
Here's a breakdown of the bones involved in the elbow joint:
| Bone | Location | Description |
|---|---|---|
| Humerus | Upper arm | Extends from the shoulder to the elbow, connecting to the ulna and radius. |
| Ulna | Forearm (on the pinky finger side) | One of two bones in the forearm that connects with the humerus at the elbow. The "tip of the elbow," or olecranon, is part of the ulna. |
| Radius | Forearm (on the thumb side) | The second bone of the forearm that also connects to the humerus at the elbow. |
The reference text explains that:
- The elbow connects the humerus (upper arm) to the ulna and the radius (forearm bones).
- The olecranon, or "tip of the elbow," is part of the ulna.
- Fractures in any of these bones can cause significant pain and restrict movement.
In summary, the arm bone that is part of the elbow joint is the humerus.
