Question

what is the function of valves that are present in the artery and ventricles

Answer 1

To prevent the over flow of the blood ,which prevents from the mixing up of bloods.

Answer 2

The function of valve present in ventricles is that they dont allow all the blood to flow back into atria while ventricular systole
Valve in veins do not allow the blood to flow back. As veins do not have high pressure.
Do remember that valves are not there in arteries