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Elbow

Elbow

Elbow

Anatomy of the Elbow

The elbow joint is an example of a hinge joint or a joint moving in one direction permitting only flexion and extension. The elbow joint is formed by three bones-the humerus of the upper arm, and the bones of the forearm, the radius laterally and the ulna medially. The joint is actually formed by the trochlea of the humerus articulating with the ulna and the capitulum of the humerus articulating with the head of the radius.1

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