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| Q. |
Heart attack occurs due to : |
| A. | Bacterial attack on the heart |
| B. | Stopping of heart beat |
| C. | Lack of blood supply to the heart itself |
| D. | Impairment of heart’s working due to unknown reasons |
| Answer» C. Lack of blood supply to the heart itself | |
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Explanation: A heart attack occurs if the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked. If blood) flow isn't restored quickly, the section of heart muscle begins to die. Heart attacks most often occur as a result of coronary heart disease (CHD), also called coronary artery disease. CHD is a condition in which a waxy substance called plaque (plak) builds up inside the coronary arteries. These arteries supply oxygen-rich blood to the heart. |
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