Question

the ventricles begin to fill during ventricular diastole. true or false true false

Explanation:

During ventricular diastole, the ventricles relax. This relaxation allows the atria to contract (atrial systole) and pump blood into the ventricles, starting the filling process. Also, as the ventricles relax, blood from the veins (through the atria) flows into the ventricles due to the pressure gradient (higher pressure in veins/atria compared to relaxed ventricles).

Answer:

True