Ulnar_notch_of_the_radius

Ulnar notch of the radius

Ulnar notch of the radius

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"Sigmoid cavity" redirects here. For Greater sigmoid cavity, see Trochlear notch.

The articular surface for the ulna is called the ulnar notch (sigmoid cavity) of the radius; it is in the distal radius, and is narrow, concave, smooth, and articulates with the head of the ulna forming the distal radioulnar joint.

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Public domain This article incorporates text in the public domain from page 220 of the 20th edition of Gray's Anatomy (1918)


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