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the valve in the heart makes sure that blood moves around your body, it also makes sure that the blood travelling around your body is travelling int he right direction.
One directional valves keep blood in the heart flowing in the right direction. There are three valves: biscupid valve, semilunar valve and tricuspid valve. These open to let the blood flow through then close to prevent the blood flowing back in the wrong direction making the heart less efficient.
The structure of the right atrium is to send blood through an atrioventricular valve to the right ventricle and it's structure is mostly muscle and tissue.
To Keep the blood moving in the right direction
pulmonary artery
Pulmonary Artery
valves help prevent blood from flowing in the wrong direction by opening and closing at the right time to let the heart pump blood effectively.
The right ventricle
right atrioventricular valve
The blood goes through the heart in the correct direction because there are a number of one-way valves in the heart chambers that blood can only pass through in the correct direction.
Valves.
The blood moves in a lateral direction to the distal right thumb. Then the blood comes back in a proximal direction toward the medial body, where the heart is located.