cardiac_cycle
1. [ 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 that constricts the atria then the ventricles
Examples:

"the cardiac cycle can be shown on an electrocardiogram"

Related terms: cycle
Similar spelling:   cardiac_muscle
  cardiac_plexus
  cardiac_valve
  cardiac_arrest
  cardiac_massage
  cardiac_rhythm
  cardiac_output
  cardiac_murmur
  cardiac_monitor