MIRIAM MASLO / SCIENCE PHOTO LIBRARY MIRIAM MASLO / SCIENCE PHOTO LIBRARY
Fractured elbow, coloured X-ray. The elbow is seen straight (left) and bent (right). In the bent view, a small patch of bone is seen above the joint. This is calcification, the deposition of mineral salts in tissues. This may happen in response to an injury. The elbow is a joint arising from the articulation of the humerus (upper arm bone, upper frame) with the ulna and radius. The ulna is the thicker of the two lower arm bones at this joint.
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