What happens during a heart attack?


What happens during a heart attack?

In: Biology

The normal rhythm that the heart produces gets interrupted. This is usually caused by spasms.

A heart attack is a lay term for what is known in the medical world as a myocardial infarction, or MI for short.

Infarction means that blood stops going to an area and the area dies from a lack of oxygen, because it is the blood that carries the oxygen.

Myocardium is the medical word for the heart muscle itself.

Therefore a myocardial infarction, or a “heart attack”, is when there is a blockage in one of the blood vessels that supply the heart muscle and that part of the heart muscle is damaged as a result.

P.S. this is the correct answer

The body ultimately has three things that can go wrong with it. The pump (heart), the tubes (veins/arteries/etc), and the fluid (blood). In a MI (myocardial infarction/ heart attack) the pump is not getting any or enough fluid due to a block in the pumps own pipes. Thus, the rest of the body gets no freshly oxygenated fluid through the rest of the pipes.

The heart contains muscles. The muscles have their own blood supply, called coronary arteries and veins. If a blood clot blocks one of these, the heart muscle gets no blood supply and gets damaged.