AP BIOLOGY

Detailed explanation-1: -Coronary artery disease is caused by plaque buildup in the wall of the arteries that supply blood to the heart (called coronary arteries). Plaque is made up of cholesterol deposits. Plaque buildup causes the inside of the arteries to narrow over time. This process is called atherosclerosis.

Detailed explanation-2: -CAD happens when coronary arteries struggle to supply the heart with enough blood, oxygen and nutrients. Cholesterol deposits, or plaques, are almost always to blame. These buildups narrow your arteries, decreasing blood flow to your heart. This can cause chest pain, shortness of breath or even a heart attack.

Detailed explanation-3: -Myocardial ischemia occurs when blood flow to the heart muscle (myocardium) is obstructed by a partial or complete blockage of a coronary artery by a buildup of plaques (atherosclerosis). If the plaques rupture, you can have a heart attack (myocardial infarction).

Detailed explanation-4: -Most often, atherosclerosis causes coronary artery disease. Atherosclerosis occurs when a waxy substance called plaque builds up in your coronary arteries. Over time, the plaque buildup narrows your coronary arteries and restricts blood flow.