when the ventricles relax the valve prevents backflow of blo

when the ventricles relax, the... valve prevents backflow of blood into the left ventricle.
A - Aortic
B- pulmonary
C- mitral
D- Left AV
E - right AV

Solution

Answer : when the ventricles relax, the Aortic valve prevents backflow of blood into the left ventricle.