Answer:
Basically, the Atrioventricular valves are Mitral and Tricuspid valves located between the atrium and ventricles. Their main functions is to “prevent the backflow of blood from the ventricles into the atrium during the ventricular contraction (systole).
Explanation:
Canopy layer my friends :D
Answer:
I am not sure what you are asking????
Explanation:
if it is multiply choice then I would c and e
