disease is a general term for medical conditions involving
the heart. The heart is the organ within the body which pumps
the arteries and
veins of the body.
Heart disease often refers to a gradual
and long-term reduction in the amount of blood and oxygen
supplied to the heart. The most common cause is atherosclerosis
of the arteries that normally supply blood to the heart, reducing
the volume of blood which can pass through them. The result
can be temporary or permanent damage to the heart.
If one or more of the arteries supplying
blood to the heart is blocked, the condition is called heart
attack or myocardial infarction.
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by Catherine E. Myers. Copyright © 2006 Memory Loss and the Brain