GROSS ANATOMY

Detailed explanation-1: -Narrowed arteries can cause chest pain because they can block blood flow to your heart muscle and the rest of your body. Over time, CAD can weaken the heart muscle. This may lead to heart failure, a serious condition where the heart can’t pump blood the way it should.

Detailed explanation-2: -A completely blocked coronary artery will cause a heart attack. The classic signs and symptoms of a heart attack include crushing chest pain or pressure, shoulder or arm pain, shortness of breath, and sweating. Women may have less typical symptoms, such as neck or jaw pain, nausea and fatigue.

Detailed explanation-3: -During a heart attack, a lack of blood flow causes the tissue in the heart muscle to die. A heart attack occurs when the flow of blood to the heart is severely reduced or blocked. The blockage is usually due to a buildup of fat, cholesterol and other substances in the heart (coronary) arteries.

Detailed explanation-4: -Eventually, an area of plaque can break open inside your artery. This causes a blood clots to form on the plaque’s surface. If the clot becomes large enough, it can block blood flow to your heart. If the blockage isn’t treated quickly, a part of your heart muscle begins to die.

Detailed explanation-5: -Coronary artery disease (CAD) is a condition that affects your coronary arteries, which supply blood to your heart. With CAD, plaque buildup narrows or blocks one or more of your coronary arteries. Chest discomfort (angina) is the most common symptom.