The following are cardiac cycle events. Place them the correct order, beginning with ventricular ejection. ventricular ejection ventricular systole semilunarvalves open Ventricular diastole/semilunarvalves close atrial systole begins AV valves open ventricles fill passively to 70-80% Ventricles fill with last 20-30% isvolumetric contraction isovolumetric relaxation

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