Cardiac Cycle:The sequence of events that occur in the heart from one heartbeat to another, including contraction (systole) and relaxation (diastole) phases.
Stroke Volume:The amount of blood ejected by a ventricle during one contraction; calculated as the difference between end-diastolic volume and end-systolic volume.
Ejection Fraction:A measurement, expressed as a percentage, that describes the portion of blood pumped out of a filled ventricle with each heartbeat