Question

fill in the blank question passive filling of the ventricles through the open valves occurs at the beginning of the cardiac cycle while the ventricles are in need help? review these concept resources.

Explanation:

At the start of the cardiac cycle, when ventricles are in diastole (relaxation), blood passively fills the ventricles through the open atrioventricular valves (mitral and tricuspid valves).

Answer:

atrioventricular; diastole