Editing Humerus (section)

====Head====<!-- [[Head of the humerus]] redirects here -->
[[File:Humerus-Head.gif|right|thumb|Head of the humerus]]

The head (''caput humeri''), is nearly hemispherical in form. It is directed upward, medialward, and a little backward, and articulates with the [[glenoid cavity]] of the scapula to form the [[Glenohumeral joint|glenohumeral joint (shoulder joint)]]. 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.<ref name="Gray's">''[[Gray's Anatomy]]'', see infobox</ref>
The diameter of the humeral head is generally larger in men than in women.