What is the relationship between coronary artery disease and a heart attack?
coronary artery disease is a symptom of heart attacks.
heart attacks reduce blood flow to the heart and cause coronary artery disease.
coronary artery disease can reduce blood flow to the heart and cause heart attacks.
heart attacks occur when coronary artery disease is treated.

Coronary artery disease can reduce blood flow to the heart and cause heart attacks.

Explanation:

Formation of plaques in coronary arteries results in coronary artery disease. This artery serves to deliver oxygenated blood to the myocardium. Atherosclerotic plaque (build-up of fatty substances, collagen fibers, and muscle fibers) reduces the ability of arteries to stretch, thickens their wall and reduces their diameter. There is reduced blood flow to myocardium leading to heart attack.

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