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Radial Collateral Ligament
Connective Tissue

Radial Collateral Ligament

Ligamentum collaterale radiale cubiti

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Anatomical Relations

The radial collateral ligament of the elbow joint extends from the lateral epicondyle of the humerus to the proximal end of the supinator crest of the ulna. It blends laterally with the annular ligament of the radius, a ligament that encircles the head of the radius, holding it in the proximal radioulnar joint, while allowing both pronation and supination of the forearm.

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The radial collateral ligament is a fan-shaped ligament composed of a large bundle of fibers.


The radial collateral ligament acts as a stabilizer of the elbow joint.

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Joint Ligament

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Entheseal structures are widely located throughout the body and are represented by the interface between bone and several tissues including tendon, joint capsules and ligaments.

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