<prompt> Isovolumic relaxation phase of the cardiac cycle ends withPeak of C wavesOpening of AV valveClosure of semilunar valveBeginning of T wave  <response>: Cardiac cycle events1. AV valves open a. End of isovolumetric relaxationb. Start of rapid filling phasec. ECG- end of T waved. JVP- Y wave V-Y descent2. AV valves closure-a. End of diastoleb. Beginning of isovolumetric contractionc. ECG- R wave later halfd. JVP- End of X descent3. Semilunar valves opena. End of isovolumetric contractionb. Ejection phase startsc. ECG- ST segmentd. JVP- the peak of c wave4. Semilunar valve closurea. Systole endsb. Isovolumetric relaxation startsc. ECG- T wave later half 