cardiac cycle

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Hypernyms:
cycle, oscillation