Coronary heart currently being dissected demonstrating proper and remaining ventricles, from over The center has four chambers, two upper atria, the obtaining chambers, and two lower ventricles, the discharging chambers. The atria open up in to the ventricles by using the atrioventricular valves, existing while in the atrioventricular septum. https://josephl890axw0.wikiap.com/user