Coronary circulation is an important and essential part of the human body’s systemic circulatory pathway, according to the University of Minnesota. The coronary arteries are located on the outside of the heart. Without them, the heart tissue would not receive blood, nutrients or oxygen.
Even though the human heart is responsible for delivering blood to the whole body, it does not utilize the blood that it pumps, reports the University of Minnesota. The coronary arteries carry oxygenated blood from the lungs to the heart tissue, or the myocardium. The blood can then diffuse across the myocardium and give the tissues nutrients and oxygen. Without the coronary arteries, the heart tissue would not receive blood and it would die.
As the heart tissue is delivered oxygenated blood, it can continue to pump and work properly to deliver blood to the rest of the body. The heart contains a right and a left coronary artery. The right and left coronary arteries originate in the ascending aorta. They wind down the ascending aorta and exit out of it superior to the aortic valve. Blood flows through the coronary arteries during ventricular diastole when the aortic pressure is the highest. Both coronary arteries branch out and wrap around the heart to deliver freshly oxygenated blood to different parts of the myocardium, notes the University of Minnesota.