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5/5/20

[Answer] When are the semilunar valves closed?

Answer: During heart relaxation




Most relevant text from all around the web:


When are the semilunar valves closed? Phases of the Cardiac Cycle When the Heart Beats What is the reason why semilunar valves open? - Quora Heart valve - Wikipedia * Atria are relaxed * Ventricles are relaxed * Semilunar valves are closed * Atrioventricular valves are open During this phase the blood moves passively from the venous system into the ventricles ( about 80 % of blood fills the ventricles during this phase. Semilunar valves are open when the blood is being pumped . The AV valves are closed when the semilunar valves are open. Wed Jan 23 2019 ...

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