Before we talk about coronary artery disease and its treatment, it is necessary to understand what exactly the human coronary artery system is made up of. I will briefly explain the coronary arterial tree in man, and later we will see what disease of these arteries can cause.
Why do we need coronary arteries ?
As we have discussed earlier, the heart is a muscular pump that contracts to force blood to flow through arteries to each part of the body, providing nutrients and oxygen for their normal function. To perform such work, the heart muscle itself requires energy.
How is this energy provided? Nature has designed a special carrier system to supply oxygen and nutrient-rich blood directly to the heart muscle. This system is the coronary arteries.