What happens at the end of diastole?
A. The atria contract to empty the remaining amount of blood into the ventricle.
B. The ventricle dilates to accommodate the entry of blood.
C. The atrial pressure becomes higher than the ventricular pressure.
D. The inferior vena cava and pulmonary pressure increases.
Answer (1)
At the end of diastole, the atria contract to empty blood into the ventricles, which dilate to accommodate the incoming blood. This results in increased atrial pressure compared to ventricular pressure. These changes help prepare the heart for the next contraction phase. ;
