The atria and ventricles work together to ensure proper blood flow throughout the body. The atria receive blood from the veins and contract, pushing the blood into the ventricles. The ventricles then contract, pumping the blood out of the heart and into the arteries. The atria and ventricles work in a coordinated manner to ensure that blood flows through the heart efficiently, and that the right amount of blood is pumped out with each heartbeat. This coordination is controlled by an electrical system within the heart, which ensures that the atria and ventricles contract in the correct order and at the right time.
