Question

what do you mean by heart attack in biological term​

Answer 1

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A heart attack occurs when blood flow to the heart is blocked causing the heart muscle to die. Arteries travel through the body carrying oxygen-rich blood. This blood travels to the heart where it is filtered and pumped out to the body. If the heart does not get blood, pieces of the heart tissue will begin to die off. Over time this can lead to blockages to cardiac problems resulting in a heart attack.

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Answer 2

Myocardial infarction is the word.

In heart attack the blood is usually cut off when an artery supplying the heart muscle is blocked by a blood clot. If some of the heart muscle dies, a person experiences chest pain and electrical instability of the heart muscle