1. Coronary Circulation Heart needs own blood supply
Coronary circulation nourishes the myocardium

2. Coronary Circulation Coronary arteries branch from base of aorta
Fill when heart relaxes
Myocardium drained by cardiac veins
Empty into coronary sinus on backside of heart
Drains into the right atrium

3. Disorders of the Cardiovascular System
Myocardial Infarction- a blood clot forms in one or more arteries of the heart
Prevents blood flow and causes the cells to die. (Heart Attack)
Angina Pectoris- severe chest pain that occurs when the myocardium is deprived of oxygen.
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4. Diagnostic Procedure for Cardiovascular disease
Angiogram- a catheter inserted in an artery of leg (groin) or arm
Worked into the desired artery
Radioactive dye injected into the blood stream
Viewed with x-ray machine.
Dye makes blood flow visible on x-ray
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5. Treatments for the Cardiovascular disease
Coronary angioplasty-procedure in which a balloon is used to open a blockage in a coronary artery narrowed by atherosclerosis. (plaque build up on the inner walls of arteries).
Coronary bypass surgery- procedure in which veins from the legs are used to bypass the coronary arteries.
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Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings