Trochlea of humerus

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Bone: Trochlea of humerus
Left humerus. Posterior view. (Trochlea visible near bottom.)
Gray's subject #51 212

The medial portion of the articular surface of the humerus is named the trochlea, and presents a deep depression between two well-marked borders; it is convex from before backward, concave from side to side, and occupies the anterior, lower, and posterior parts of the extremity.

It articulates with the ulna.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.