How Does Blood Travel Through The Body?
A system of blood vessels carries the blood through the body. These vessels include arteries, veins and capillaries.
Arteries carry blood away from the heart. They are strong and elastic. They must be tough enough to withstand the pressure as the heart pumps.
Coronary Arteries are located in the heart muscle itself to supply it with oxygen nourishment. Blood flow comes to the coronary arteries from the left side of the heart and through the aorta.
Veins carry blood back to the heart. They are not as strong and elastic as arteries. They have valves to keep the blood flowing in the right direction -- toward the heart.
Capillaries carry blood to the cells. They are very small and fragile.