Systolic vs. diastolic blood pressure: How do they differ? Diastole and systole refer to when the heart muscles relax and contract. The balance between diastolic and systolic pressure determines... Overview and definition of the cardiac cycle, including phases of systole and diastole, and Wiggers diagram. Click now to learn more at Kenhub! From the above, it is obvious that the systole of atrial chambers will be followed by the systole of ventricular chambers. The ventricular and atrial systole will never coincide. Part of ventricular diastole and atrial diastole occur simultaneously. That is part of atrial diastole will occur when the ventricles are also in diastolic phase. The further events of the cardiac cycle occurring in the ventricular chambers are discussed on the basis of intraventricular pressure changes. The ... Confused by blood pressure numbers? Discover the difference between systolic and diastolic readings, risks, and how to manage healthy levels.
