Question

Myocardial infarction is caused by

• A. Hardening of arteries
• B. Lumpy thickness developed in the inner walls of arteries
• C. Clot in the lumen of a coronary artery
• D. Sudden interruption in the blood flow towards a portion of the heart

Answer 1

The correct option is D Sudden interruption in the blood flow towards a portion of the heart

Coronary arteries bring oxygen-rich blood to the hardworking heart muscle. The blockage of these arteries, as well as others in the body, most often arises from a condition known as atherosclerosis. With this disease, calcified fatty deposits build up to form so-called plaques in the inner lining of these arteries. Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to part of the heart causing damage to the heart muscle.

So, the correct answer is option D.