Noun: cardiac cycle 'kaa(r)dee`ak 'sIkul- The complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse conducted through the heart muscle that constricts the atria which is followed by constriction of the ventricles
"the cardiac cycle can be shown on an electrocardiogram"
Derived forms: cardiac cycles Type of: cycle, oscillation Encyclopedia: Cardiac cycle |