What are the valves that control the exits of the ventricles called?

The valves that control the exits of the ventricles are called semilunar valves. There are two semilunar valves: the aortic valve, which regulates blood flow from the left ventricle into the aorta, and the pulmonary valve, which controls blood flow from the right ventricle into the pulmonary artery. These valves prevent backflow of blood into the ventricles after contraction.