NCLEX Cheat Sheets: Phases of the cardiac cycle for Nursing Students
cardiac cycle pqrst wave
cardiac cycle in physiology
Cardiac cycle of heart
cardiac cycle time
5 Steps of Cardiac Cycle
The cardiac cycle is essentially split into two phases, systole (the contraction phase) and diastole (the relaxation phase). Each of these is then further divided into an atrial and ventricular component.
Passive Ventricular Filling.
Passive Ventricular Filling. AV valve is open, the SL valve is closed.
Atrial contraction and emptying. AV valve will close, SL valve stays closed.
Isovolumic contraction.
Ventricular contraction and ejection.
Isovolumic relaxation.
The cardiac cycle comprises a complete relaxation and contraction of both the atria and ventricles, and lasts approximately 0.8 seconds.
