Respuesta :
Answer:
During the period of ventricular filing blood flows passively through the atria and the open AV valves into the ventricles-b.
Answer:
b. blood flows passively through the atria and the open AV valves into the ventricles.
Explanation:
During the period of ventricular filing, blood flows passively through the atria and the open AV valves into the ventricles.