Question

semilunar valve prevent back flow into the ; av valves prevent back flow into the . using your own observations, explain how the operation of semi lunar valves differs from that of the av valves.

Answer 1

The complete question:

The semi lunar valves differ from AV valves in various ways. The semi lunar valve prevents the back flow of blood into ventricles and the AV valves prevent the backflow of blood into the atrium.

Th semi lunar valve are present between the ventricles and the major heart arteries. It allows the flow of blood from the left ventricle to the aorta and the right ventricle to the pulmonary artery. The closure of this valve makes the second sound of the cardiac cycle, "DUB". The two valves are called aortic and pulmonary valves and connective tissue called chordae tendineae is absent.

On the contrary, the AV valves called as Atrioventricular valves are present between the arteries and ventricles. They allow the flow of the blood from the right atrium to the right ventricle and the left atrium to the left ventricle. The closing of the valve makes the first sound of the cardiac cycle called as "LUBB". They are called tricuspid and mitral valves and the connective tissue called chordae tendineae is present.

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