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The inferior angle of scapula is the blunt area of the bone where its medial and lateral borders meet. It is located superficial to the seventh rib or the seventh intercostal space and is one of the three angles of the scapula, the other two being the superior and lateral angles.
First, hold the bone at the inferior angle and orient it so that the convex posterior surface faces you. In this position, the glenoid cavity faces laterally outward, and the spine is clearly visible.
Teres major muscle – its origins are the posterior surface of the inferior angle and the lower part of the lateral border. Its role is to perform adduction and medial rotation at the shoulder joint.
The main part of the scapula, the body, consists of a somewhat triangular-shaped flat blade, with an inferiorly pointing apex, referred to as the inferior angle as well as lateral and superior angles. The scapula is described as having superior, medial, and lateral borders.
Inferior Angle: Where the medial and lateral borders converge; important in movements of the scapula. Lateral Angle: The thickest part of the scapula, housing the glenoid cavity, which articulates with the humerus to form the shoulder joint.
Posterior (inferior) surface. The posterior (inferior) surface of the scapula is the rear part that faces your back. It includes the: Spine (apex): A slightly pointed tip that forms the top of your shoulder blade. Acromion: Part of the spine that moves with your clavicle when you move your shoulder.
The inferior angle of scapula, thick and rough, is formed by the union of the vertebral and axillary borders; its dorsal surface affords attachment to the Teres major and frequently to a few fibers of the Latissimus dorsi.