Anatomical Characteristics Of The Crest Of The Greater Tubercle Of The Humerus

Description

Crest of the greater tubercle (lateral lip of the intertubercular sulcus) is highlighted on the proximal humerus as a thick, longitudinal ridge descending inferiorly from the greater tubercle toward the proximal shaft. Immediately medial to this crest lies the intertubercular (bicipital) groove, while the head of the humerus sits superomedial with the anatomical neck forming the constricted margin between articular surface and tubercles. Laterally, the ridge blends into the proximal diaphysis, with the surgical neck located inferior to the tubercles as the humeral contour narrows. That lateral lip matters because it marks the insertional footprint of the pectoralis major tendon, a frequent focus in tendon ruptures, chronic retraction, and operative repair. Its close relationship to the bicipital groove also anchors orientation during open and arthroscopic procedures that address long head of biceps tendinopathy or tenodesis, where surgeons use the groove and its lips to confirm anterior humeral anatomy. Bone texture and edge definition in the illustration make the ridge-to-groove transition easy to read, which helps when teaching how tendon attachments map onto palpable and radiographic landmarks. Orthopaedic anatomy lectures on the shoulder girdle often need a single, uncluttered reference for the greater tubercle region, and this illustration fits well alongside discussions of the bicipital groove, pectoralis major insertion, and proximal humerus fracture patterns. It also suits surgical atlases covering deltopectoral approaches, pectoralis major repair, and implant positioning where proximal humeral orientation depends on reliable surface landmarks. Anatomical accuracy verified by SciePro's Medical Advisory Board.