Atherosclerosis comes from the Greek word - athere that means porridge and skleros meaning hardening. These words conjure up an image in our minds of exactly what happens when atherosclerosis develops in the arteries. The plaque that forms and blocks up the arteries are made of atheroma. This is a mixture of cholesterol, fibrous tissue, dead muscle cells, platelets and sometimes calcium. Over the years this plaque gets bigger and bigger, reducing the blood flow and oxygen supply to the body's tissue. Atherosclerosis can affect arteries anywhere in the body, but most life threatening is when it blocks up the heart arteries or the arteries supplying blood and oxygen to the brain.

No artery in the body is safe from atherosclerosis and may effect the heart causing heart disease as the coronary vessels are easily blocked