Which Is TRUE About the Function of the Aortic Valve

Multiple Choice

Which is TRUE about the function of the aortic valve?

A) It prevents the backflow of blood into the aorta during ventricular diastole.
B) It prevents the backflow of blood into the left ventricle during ventricular diastole.
C) It prevents the backflow of blood into the left ventricle during ventricular ejection.
D) It prevents the backflow of blood into the aorta during ventricular ejection.
E) Its closure causes the first heart sound.