Valves in heart

Semilunar valves of heart open during

Semilunar valves of heart open during

Explain valves of heart.

Nature of valves in the heart is

Explain the significance of valves in the heart.

What heppens if there are no valves in the Heart?

Total number of valves in human heart are

Total number of valves in human heart are

There are valves in the heart between atria and ventricles. Is the purpose of valves in the veins and arteries same?