The Infraspinous Fossa Of The Scapula From A Lateral View

Description

Viewed from the lateral side, the scapular blade turns to bring the infraspinous fossa into profile on the posterior surface, inferior to the scapular spine and posteromedial to the glenoid cavity. The animation tracks along the lateral border toward the inferior angle, keeping the shallow triangular concavity centered while the infraspinous crest and adjacent infraspinous surface sweep posteriorly. Superiorly, the sequence maintains orientation to the spine of scapula, while anterior to the fossa the glenoid neck and lateral edge form the bony transition toward the shoulder joint. Anatomically, this is the osseous bed for infraspinatus, with the muscle’s fibers converging laterally toward the greater tubercle of the humerus and the posterior capsule of the glenohumeral joint. Posterolateral scapular landmarks matter in rotator cuff pathology: tendon degeneration and posterosuperior cuff tears often correlate with altered scapular kinematics and a reduced subacromial space, and accurate bony orientation helps explain why external rotation strength deficits accompany posterior shoulder pain. Motion clarifies what still frames often miss, the way a slight change in viewing angle alters the perceived depth of the fossa and the relationship of the scapular spine to the glenoid, a common source of misunderstanding when correlating anatomy to radiographs or CT reconstructions. Use this clip in upper limb anatomy teaching, kinesiology modules on scapulothoracic rhythm, and orthopedic or sports medicine lectures introducing rotator cuff footprint anatomy and posterior shoulder approaches. It also supports figure panels for textbooks and e-learning that need a clean lateral bony reference before layering muscles, tendons, or surgical landmarks. Anatomical accuracy verified by SciePro's Medical Advisory Board.