different stages of diastole systole and explain there stages
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semilunar (pulmonary and aortic) valves close at end of ejection stage; blood flow stops. ventricles and atria together relax and expand; blood flows to the heart during ventricular and atrial diastole. ... Stages 1, 2a, and 2b together comprise the "Diastole" period; stages 3 and 4 together comprise the "Systole" period.
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semilunar (pulmonary and aortic) valves close at end of ejection stage; blood flow stops. ventricles and atria together relax and expand; blood flows to the heart during ventricular and atrial diastole. Stages 1, 2a, and 2b together comprise the "Diastole" period; stages 3 and 4 together comprise the "Systole" period.
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