CBSE Class 10 Answered
What happens in a heart attack. Full internal process during heart attack.
Asked by virenderlathiya | 09 Jun, 2019, 11:11: AM
Expert Answer
A heart attack, or myocardial infarction is permanent damage to the heart muscle.
Without adequate blood, the heart becomes starved of oxygen and the vital nutrients it needs to work properly. This can cause chest pain.When one or more of the coronary arteries are completely blocked, a heart attack (injury to the heart muscle) may occur.
A heart attack occurs when a coronary artery becomes suddenly blocked, stopping the flow of blood to the heart muscle and damaging it. The blockage is most often a buildup of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries). The plaque eventually breaks away and forms a clot. The interrupted blood flow can damage or destroy part of the heart muscle.
Answered by Sivanand Patnaik | 09 Jun, 2019, 03:28: PM
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