ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY ANIMATED HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Coronary artery disease. Computer artwork of red blood cells flowing through an increasingly (top to bottom) blocked coronary artery. Three hearts are seen in the background, with coronary blood vessels on their surfaces. The yellow substance lining the coronary artery is atheroma, a collection of fatty plaques formed from lipids (fats) such as cholesterol. This hardening and scarring of the arteries is known as atherosclerosis. As the coronary arteries narrow due to the atheroma, the restricted blood flow to the heart muscle causes chest pain (angina pectoris) or a heart attack (myocardial infarction).
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