Head Of The Humerus, Posterior View

Description

Posteriorly, the humeral head sits superomedial to the proximal shaft and articulates with the glenoid cavity of the scapula, forming the glenohumeral joint. A subtle constriction marks the anatomical neck, while the greater tubercle projects laterally relative to the articular surface and the lesser tubercle turns more anteriorly and is only partially appreciated from this angle. Along the scapula, the glenoid rim and adjacent neck are visible, with the posterior joint line framed against the thoracic cage and partial ribs in the background. Bone dominates the field. Posterior orientation matters because it aligns with the direction of common instability patterns and many operative approaches. Posterior shoulder dislocation, often missed on initial assessment, can drive an impaction fracture into the anteromedial humeral head (reverse Hill-Sachs lesion), a pathology best understood when you can mentally map the humeral articular surface to the glenoid rim from behind. The view also supports teaching the relationship of the tubercles to rotator cuff insertions and how subtle changes in humeral head position can alter subacromial and posterior capsulolabral mechanics during abduction and external rotation. Orthopaedic and sports medicine texts often need a clean posterior bony reference when discussing glenoid version, posterior labral tears, and capsulorrhaphy concepts, and this plate fits well beside MRI axial sequences of the shoulder. Gross anatomy and kinesiology courses can pair it with lab practicals to reinforce scapulohumeral rhythm and surface anatomy landmarks without soft tissue distraction. Anatomical accuracy verified by SciePro's Medical Advisory Board.