What would happen if the heart did not have any valves?

Answer 1

The valves have to open to let blood flow into a chamber, and close before the blood flows back. If the valves do not open and close precisely on schedule, or if they fail to open or close completely, the blood will not flow efficiently. This can cause fluctuations in blood pressure, lack of flow to organs, or damage to the muscles of the heart.

For example, if the aortic valve between the heart and the aorta does not close after the left ventricle contracts, there will be back pressure into the ventricle, less blood pumped out of the heart, and lower pressure in the arteries.

Answer 2

When the AV valve did not completely close during ventricular contraction, the pressure of the blood drives the cusps downward that cause the blood regurgitate (flow back) into the atria when the ventricles contract.

The stroke volume would be decreased and cardiac output would decline. The condition you describe is called a heart murmur.

Answer 3

The blood in your heart would be floating around aimlessly and then when the heart could contract, some of the blood would go in a forward direction, but some of the blood would go backwards. If the valves were working, they would close so when the heart would contract, the blood could not go backwards so it will only go forwards.

Answer 4

You would die because blood with CO2 would come back in the heart and die

Answer 5

If the valves in heart do not close then there will be back flow of blood which would lead to several blood related and heart disorders