ANATOMY

Detailed explanation-1: -A heart attack occurs when an artery that sends blood and oxygen to the heart is blocked. Fatty, cholesterol-containing deposits build up over time, forming plaques in the heart’s arteries. If a plaque ruptures, a blood clot can form. The clot can block arteries, causing a heart attack.

Detailed explanation-2: -If a coronary artery becomes completely blocked, the lack of blood and oxygen can lead to a heart attack that destroys part of the heart muscle. The damage can be serious and sometimes fatal. Irregular heart rhythm (arrhythmia). An abnormal heart rhythm can weaken your heart and may be life-threatening.

Detailed explanation-3: -Most of the time, coronary artery disease happens when a waxy substance called Plaque builds up inside your arteries, causing the arteries to narrow. The buildup of this plaque is called atherosclerosis. This can happen over many years, and it can block blood flow to parts of your heart muscle.

Detailed explanation-4: -Sometimes, plaque deposits inside the coronary (heart) arteries can break open or rupture, and a blood clot can get stuck where the rupture happened. If the clot blocks the artery, this can deprive the heart muscle of blood and cause a heart attack.

Detailed explanation-5: -What Is a ‘Widowmaker’ Heart Attack? A widowmaker heart attack is a type of heart attack that’s caused by a 100 percent blockage of the left anterior descending (LAD) artery. It’s also sometimes referred to as a chronic total obstruction (CTO).