Radius (proximal epiphysis)

The proximal epiphysis (proximal end or extremity) of the radius is the disc-shaped or cylindrical end that connects with the humerus. It articulates with the capitulum of the humerus, forming the humeroradial joint that is a part of the elbow joint. Also, it forms one more articulation with the radial notch of the ulna - the proximal radioulnar joint.

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