Joint Capsule of Elbow

The joint capsule of the elbow has sides that are thickened by ulnar and radial collateral ligaments. The front surface of the capsule is reinforced by fibers from a muscle (brachialis) in the upper arm.

The three parts of the elbow joint include the humeroulnar, humeroradial, and proximal radioulnar joints. A common synovial membrane surrounds all of these.

The ligaments in the joint include the annular, ulnar collateral, and radial collateral ligaments.


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