The Infraglenoid Tubercle Of The Scapula In A Lateral View

Description

Rotating through a lateral shoulder-blade view, the animation isolates the scapular glenoid cavity and tracks inferiorly to the infraglenoid tubercle, a roughened bony prominence on the lateral border just below the articular rim. The tubercle sits inferior to the glenoid fossa, posterior to the subscapular fossa, and medial to the humeral head position in anatomical alignment. As the viewpoint subtly shifts, adjacent landmarks come into relief, including the neck of the scapula, the lateral (axillary) border, and the base of the coracoid process superiorly. Bone surface texture is emphasized rather than soft tissue. Clinically, the infraglenoid tubercle matters because it is the scapular origin of the long head of triceps brachii, placing it at the intersection of posterior shoulder function and elbow extension mechanics. Traction injury to the long head in throwing sports, posterior shoulder pain syndromes, and glenoid rim trauma are easier to explain when learners can follow the tubercle’s position relative to the glenoid cavity and the scapular neck as the camera rotates. The sequence clarifies why this landmark is palpably inaccessible yet surgically relevant during posterior approaches to the glenoid and during arthroscopic orientation. Small landmark, big implications. Use this animation in gross anatomy teaching of the pectoral girdle, in orthopedic and sports medicine modules covering triceps long head pathology and shoulder stabilization, or as a figure supplement in surgical texts discussing posterior glenoid exposure and scapular bony landmarks for anchor placement. It also reads well in radiology education when correlating scapular anatomy with CT 3D reconstructions and lateral scapular views. Anatomical accuracy verified by SciePro's Medical Advisory Board.