The Anatomical Structure Of The Infraglenoid Tubercle Of The Scapula

Description

Arising from the lateral angle of the scapula, the infraglenoid tubercle appears as a triangular, roughened prominence immediately inferior to the glenoid cavity on the shoulder blade. The animation tightens focus from the broader scapular body to the glenoid rim, then settles on the tubercle’s relationship to the infraglenoid neck, the lateral border, and the adjacent axillary (lateral) surface. As the perspective rotates, the tubercle is read in relief against the smoother subscapular fossa anteriorly and the infraspinous fossa posteriorly, reinforcing its position as an inferior landmark beneath the articular margin. Clinically, this small bony impression matters because it anchors the long head of triceps brachii, linking scapular anatomy to posterior shoulder pain patterns and to functional deficits after proximal humeral or scapular trauma. Seeing the attachment site in motion clarifies how the tendon originates just inferior to the glenohumeral joint line, and why swelling or fracture at the lateral scapular border can irritate regional soft tissues without involving the glenoid articular surface. It also supports teaching of exam correlations, such as pain with resisted elbow extension or shoulder extension when traction is transmitted through the long head. Use this animation in upper limb gross anatomy labs, orthopedic and sports medicine slide decks, or figure sets for chapters on the scapula, glenohumeral joint landmarks, and triceps anatomy, where a rotating sequence helps readers orient quickly to the lateral scapular neck. A strong fit for surgical education discussing posterior shoulder approaches and scapular fracture classification landmarks. Anatomical accuracy verified by SciePro's Medical Advisory Board.