上腕骨頭 - Caput humeri

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説明

The head of humerus, nearly hemispherical in form, is directed upward, medialward, and a little backward, and articulates with the glenoid cavity of the scapula.

The circumference of its articular surface is slightly constricted and is termed the anatomical neck, in contradistinction to a constriction below the tubercles called the surgical neck which is frequently the seat of fracture. Fracture of the anatomical neck rarely occurs.


This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).

解剖学的階層

一般解剖学 > 骨、骨格系 > 付属肢骨格 > 上肢骨 > 自由上肢 > 上腕骨 > 上腕骨頭

翻訳