Myocardial infarction is due to
Infection of heart muscles
Weakening of heart muscles
Clot in blood vessels of heart
Breakage of coronary vessel
The correct option is B Clot in blood vessels of heart
Heart attack is a condition, that occurs when the blood supply to part of the heart muscle (the myocardium) is reduced or stopped due to blockage of one or more of the coronary arteries. It is also known as myocardial infarction. It is usually caused by a blood clot, which stops the blood flowing to a part of heart muscle.