During mid-to-late diastole, blood flows from the atria to fill their respective ventricles to prepare for systole. What is happening during that time? Choose all that apply. A. Semilunar valves are open. B. Pressure in the heart is high. C. Atria contract to force the remaining blood into the ventricles. D. Atrioventricular valves are open. E. Blood flows passively from veins through atria into ventricles.
Added by Patricia S.
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Step 1: Semi-lunar valves are closed during mid-to-late diastole to prevent blood from flowing back into the ventricles. Show more…
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