Atherosclerosis is the most common acquired disease of arteries in developed countries. This pathology. characterized by thickening of the arterail walls with subsequent loss of elesticity, is associated with the buildup of plaque (mainly cholesterol) in the arterail lumen. This model, approximately 10X life size, shows the atheromatous plaque in various pathological stages along with local intravascular clotting (thrombosis) due to the arterial narrowing.