Coronary arteries are blood vessels that serve the heart of
the food supply to the cells of the heart. Coronary heart disease occurs when
the coronary arteries are blocked or narrowed due to fatty deposits, which
gradually accumulate in the arterial wall. Accumulation process is called
atherosclerosis, and can occur in other arteries, not only in the coronary
arteries.
Lack of blood supply due to narrowing of the coronary
arteries cause chest pain called angina, which usually occurs during physical
activity or stress. If blood does not flow at all because of the blocked
coronary artery, the patient can suffer fatal heart attack. Heart attacks can
occur anytime, even when you are resting.
