Acromion Of The Scapula, Lateral View

Description

Acromion process of the scapula dominates this lateral shoulder-girdle view, projecting superiorly and laterally from the scapular spine to overhang the glenoid cavity. Its flattened, gently curved undersurface forms the roof of the subacromial space, while the lateral margin leads into the acromioclavicular articular facet at the acromial tip. Inferior and slightly medial to the acromion, the glenoid fossa and adjacent scapular neck establish the relationship between the coracoacromial arch and the humeral head position it protects. Contours along the posterior aspect cue the spine of the scapula as it expands into the acromion. Acromial shape and slope matter when you are teaching or documenting subacromial impingement and rotator cuff disease, because the supraspinatus tendon and subacromial-subdeltoid bursa traverse directly beneath this bony overhang and are vulnerable when the outlet narrows. Orthopedic notes often reference acromial morphology (for example a hooked, type III acromion) when correlating outlet narrowing with bursal-sided supraspinatus tears, and this lateral perspective keeps that inference grounded in the bony anatomy rather than soft-tissue speculation. Surface detail also supports discussion of deltoid origin along the lateral acromion and the functional consequence of acromial fracture or postoperative deltoid detachment. Small space, big consequences. Use this illustration in upper-limb anatomy courses to anchor the scapular spine-to-acromion continuum, in radiology teaching files when orienting to the supraspinatus outlet on a scapular-Y view, and in surgical education materials that introduce acromioplasty, distal clavicle excision, or acromioclavicular joint reconstruction. Anatomical accuracy verified by SciePro's Medical Advisory Board.