The center is really a complicated organ that guarantees that blood is transported in a singular route through the body. When the body reaches the heart, it travels through the four chambers and out into the veins that deliver it forward where it's desired by areas and the extremities. The first set separate the atria from the ventricles, and the second set permit the blood to flow out of the ventricles into the veins. In order to get a healthy heart beat to become experienced, the valves… Continuar