The cardiac cycle describes the alternating sequence of heart muscle contraction (systole) and relaxation (diastole). This rhythmic process is fundamental to the heart's function of circulating blood.
The cardiac cycle refers to the sequence of contractions and relaxations that the heart undergoes. This process is essential for pumping blood throughout the body.
| Front | cardiac cycle |
|---|---|
| Back | The alternating contractions and relaxations of the heart. |
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