What is the function of aortic valve?

Aortic Valve. The aortic valve is an integral part of the heart and is located between the left ventricle and the aorta. It opens when the left ventricle contracts (systole) and allows blood to be pumped into the aorta. It closes when the left ventricle fills (diastole). It's function is to prevent blood from flowing back from the aorta while the heart is filling.
Aortic valve. The valve opens to allow flow out of the heart to the body. If it doesn't open properly we call this stenosis. It has to close properly to keep blood flowing in a forward direction. If it doesn't we call this insufficiency. Either or both abnormalities can exist in the valve.