with coronary circulation coronary comes from the latin word coronarius meaning crown this is because the coronary blood vessel surrounding the heart resembles a little crown and circulation refers to the flow of blood so coronary circulation is the movement of blood throughout the vessels that supply the myocardium also known as the heart muscle now the heart is a pump primarily made up of cardiac muscle cells known as cardiomyocytes and like any other cell they require a steady supply of oxygen nutrients and a way to eliminate wastes and although the heart is continually pumping blood throughout its chambers the myocardium is too thick for the diffusion of blood to happen effectively so instead the coronary circulation provides an efficient way for the exchange of substances to occur sign up for a free trial today and watch the full video on osmosis.org [Music] bye