Cardiac Cycle (Noun)
Meaning
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".
Classification
Nouns denoting natural events.
Examples
- The cardiac cycle is the sequence of events that occurs in the heart from the beginning of one heartbeat to the beginning of the next.
- During the cardiac cycle, the atria contract and pump blood into the ventricles, which then contract and pump blood out of the heart.
- The cardiac cycle can be divided into two main phases: the systolic phase, during which the heart contracts, and the diastolic phase, during which the heart relaxes.
- An electrocardiogram can be used to visualize the cardiac cycle and diagnose any irregularities in the heartbeat.
- Understanding the cardiac cycle is essential for medical professionals who need to diagnose and treat heart conditions.