BIOL122 Lecture Notes - Lecture 5: Ace Inhibitor, Thromboxane A2, Antipyretic
Document Summary
Note: the heart does not use the blood within its four chambers (i. e. The atria or ventricles) all the blood it uses come from the coronary arteries. Critical stenosis: 75% (or more) of a coronary artery(s) will be occluded. Name given to the arteries that wrap around the outside of your heart. These arteries are important as they provide the myocardium (heart muscle) with blood. Because infarction means the cells have died and been replaced with scar tissue. Severe and chronic atherosclerosis occurring in the heart"s blood vessels. This is narrowing and/or blocking of the coronary (heart) arteries. Thus there will be a lack of blood reaching an area of the myocardium (heart muscle). Without blood and the oxygen it carries ischemia and eventually infarction will eventuate. This is bad when it happens anywhere in your body. But it is especially bad in your heart! Chest pain caused by insufficient blood flow and oxygen to the myocardium (heart muscle).
