Description
The acromion (acromial process) is the anterior projection from the lateral end of the spine of the scapula. It is continuous medially with the spine of the scapula at the acromial angle and extends anteriorly over the glenohumeral (shoulder) joint.
The acromion consists of medial and lateral borders, which define its superior and inferior surfaces:
—the medial border contains the clavicular facet and provides an insertion site for the trapezius muscle;
—the lateral border is subcutaneous and provides an origin site for the acromial part of deltoid muscle;
—the superior surface is subcutaneous and rough;
—the inferior surface is smooth, is located superior to the glenohumeral joint and provides an attachment site for the coracoacromial ligament.
Related parts of the anatomy
