Question

why the valves are important in heart?
if there is no valves what will happen?

Answer 1

The aortic and pulmonary valvescontrol blood flow out of the ventricles into your body. Click to see where the valves are located and how blood flows in a normal heart. Two main problems can occur when heart valves are diseased or damaged: Regurgitation occurs when the valve doesn't close all the way.

Answer 2

this valve prevent the lack flow of blood into atria when the ventricles contract to pump blood out of the heart to the rest of the body this is because when the ventricle contract the valve first and second valve automatically so that blood may not go back into atria