A Posterior Full Body View of the Teres Major Muscle of a Male

Description

Posterior surface anatomy is emphasized in this full body male view, with the teres major (musculus teres major, also called rotundus major) highlighted along the inferior lateral border of the scapula. Its thick muscular belly courses inferolaterally from the dorsal scapula toward the proximal humerus, lying inferior to teres minor and blending anteriorly with the posterior axillary fold as it approaches the tendon of latissimus dorsi. Lateral to the scapular spine and acromion, the glenohumeral region is framed by the posterior deltoid, while the teres major sits medial to the posterior humeral shaft and deep to the superficial contour of the upper back. Palpable and frequently discussed in functional anatomy, teres major is a powerful adductor and internal rotator that works in concert with latissimus dorsi during climbing, swimming, and resisted pulling, and this relationship matters when interpreting posterior axillary fold asymmetry or weakness. From a surgical standpoint, its shared insertional neighborhood at the medial lip of the intertubercular sulcus places it near the long head of the biceps tendon and the humeral circumflex vessels, so clear spatial context helps when teaching tendon transfers and shoulder approaches. Small, easy to miss, and often confused with teres minor. This view prevents that. Educators can drop this plate directly into gross anatomy labs, kinesiology modules, and shoulder girdle lectures to reinforce scapulohumeral relationships and the distinction between rotator cuff musculature and scapulohumeral movers. It also suits orthopedic and sports medicine publishing where posterior shoulder pain, posterior axillary fold contour, or postoperative rehabilitation plans require accurate depiction of teres major relative to latissimus dorsi and the scapula. Anatomical accuracy verified by SciePro's Medical Advisory Board.