Question

What is heart attack ??????​

Answer 1

Answer:

A heart attack is a medical emergency. A heart attack usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies.

Answer 2

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Heart attack, also called myocardial infarction, death of a section of the myocardium, the muscle of the heart, caused by an interruption of blood flow to the area. A heart attack results from obstruction of the coronary arteries.