HEART ATTACK – MYOCARDIUM; ARTERIOSCLEROSIS
Heart attacks have become the number one killer in the highly developed countries.
Yet they were uncommon before the Thirties. Fortunately we may have seen the peak, because there was a decline in the Seventies.
Why this has happened is not yet clear, but it may be that, at last, we are beginning to do something about the causes of artery disease which underlie the heart attack.
The heart is a pump, pushing oxygen-containing blood around the body, through the arteries, to nourish the tissues.
The aorta is the main artery leading from the heart. A short way from where it starts, the coronary arteries branch off the aorta and enter the heart.
Atheroma is one form of arteriosclerosis (hardening of the arteries).
Fatty material is laid down in the thin membrane lining the inner wall of the artery. This builds up much of the same as rust builds up inside a water pipe and narrows it.
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