Understanding the cardiovascular system Coronary arteries supply blood to the heart muscle. Like all other tissues in the body, the heart muscle needs oxygen-rich blood to function, and oxygendepleted 5 blood must be carried away. The coronary arteries consist of two main arteries: the right and left coronary arteries, with the left dividing into two important arteries. Since coronary arteries deliver blood to the heart muscle, any coronary artery disorder or disease can have serious implications by reducing the flow of oxygen and nutrients to the heart muscle, which may lead to a heart attack and possibly death. Atherosclerosis (a buildup of plaque in the inner lining of an artery causing it to narrow or become blocked) is the most common cause of heart disease.
P1136 Women and Heart Disease
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