Elbow
From Wikipedia, the free encyclopedia
| Elbow-joint | |
|---|---|
| Elbow | |
| Left elbow-joint, showing anterior and ulnar collateral ligaments. | |
| Latin | articulatio cubiti |
| Gray's | subject #84 321 |
| MeSH | Elbow+joint |
The elbow is a hinge-joint between the bones of the upper and lower arm. It joins the humerus of the upper arm and the radius and ulna of the forearm together. Everyone has 2 elbows. It allows the lower arm to be extended or retracted (moved in). The elbow also allows the arm to turn. It moves by using three ligaments: the anterior, posterior, ulnar collateral and radial collateral ligaments.