Back of the Male Thorax, Posterior View

Description

Posterior surface anatomy of the male thorax is presented with emphasis on the posterior thoracic wall and the scapular regions. Both scapulae lie symmetrically on the superolateral back, spanning roughly the second through seventh ribs, with their medial borders oriented parallel to the thoracic spinous processes and their inferior angles pointing inferomedially toward the midline. Superiorly, the scapular spines mark the level of approximately T3, while the surrounding dorsum corresponds to the upper thoracic portion of the trunk. Clinically, the scapulae define a working map for rib level estimation and posterior chest procedures because they overlie the posterior ribs and intercostal spaces and move substantially with shoulder position. Abduction and protraction of the upper limb swing the scapula laterally, widening access for posterior auscultation and helping expose the “triangle of auscultation” (bounded by trapezius, latissimus dorsi, and the medial border of the scapula) where lung sounds transmit more clearly. Landmarks in this region also guide posterior thoracentesis planning, where needle placement typically targets an intercostal space below the inferior angle while staying just superior to the rib to avoid the intercostal neurovascular bundle. Use this posterior thorax reference in gross anatomy and surface anatomy teaching to correlate scapular landmarks with thoracic vertebral levels, and in clinical skills manuals covering lung examination, posterior chest wall pain patterns, and safe zones for pleural procedures. It also suits medical publishing layouts introducing dorsal thoracic topography for physical examination and musculoskeletal modules on scapulothoracic motion. Anatomical accuracy verified by SciePro's Medical Advisory Board.