so what we're seeing here is a buildup of cholesterol on the wall if you look carefully you would see some inflammatory reaction so the cholesterol itself is really not such a huge problem in this stage it's well contained this is called the endothelium the inside lining of the blood vessel wall and as long as this endothelium is smooth and shiny and not sticky it doesn't matter so much that there's cholesterol building up here okay because it can't really do much as long as it's encased in this smooth and Ophelia lining the blood here does