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Basically a heart attack is when one part of the heart requires more oxygen-containing blood than it is getting. Usually that happens because one (or more) of the blood vessels which supply blood to the heart muscle are blocked, often by build-up in the blood vessels due to cholesterol.
When the heart muscle can't get the oxygen it needs, the cells are injured and can die. This causes the pain that is felt during a heart attack. When the cells die, they leave scar tissue behind, which will keep the heart from contracting as effectively in the future (because muscle contracts, while scar tissue doesn't).
If the heart attack is a really big one-- a whole lot of the muscle can't get oxygen-- then the heart won't beat effectively enough to keep the person alive.
What else can I help you with?
How is body temperature affected by a heart attack?
Body temperature is affected by a heart attack in that it typically rises. A heart attack can often trigger a fever of over 100 degrees.
What are the affected body parts by palpitation?
heart
What parts of the body can be affected by emboli?
Emboli can affect any part of the body. The most common sites are the legs and feet. When the brain is affected, it is called a stroke. When the heart is involved, it is called a heart attack or myocardial infarction (MI).
What are the affected body parts by hypertension?
kidney, brain, and the heart
What parts of the body affected by hypertension?
kidney, brain, and the heart
What body parts are affected by using marijuana?
brain, heart, and lungs
What body parts are involved in a heart attack?
A heart attack typically involves the heart muscle itself, specifically the coronary arteries that supply blood to the heart. When these arteries become blocked, it can lead to a heart attack (myocardial infarction). The symptoms of a heart attack can also manifest in other parts of the body such as the arms, neck, jaw, and back.
What parts of your body are affected in lactic acid fermentation?
liver, lungs, heart.. balls.
What are symptoms of a women's heart attack?
The smell of burnt toast is a signal of a heart attack. If you aren't cooking toast and smell this, you should be worried. Sometimes after a heart attack you can lose function of body parts.
What body parts are affected the most with the use of methadone?
brain, heart,the important stuff
What parts connect the heart to other parts of the body?
it connects to the heart to the other parts of the body ...
Can anyone get heart attack while dreaming?
Dreaming has nothing to do with a heart attack. It has to do with your physical body.
