What occurs during systole?

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Multiple Choice

What occurs during systole?

During systole, the heart muscle of the ventricles contracts, generating pressure to push blood out of the chambers and into the arteries. This contraction opens the semilunar valves (aortic and pulmonary) so blood is ejected, while the atrioventricular valves close to prevent backflow into the atria. This is the pumping phase, unlike diastole, when the chambers relax and fill with blood.

During systole, the heart muscle of the ventricles contracts, generating pressure to push blood out of the chambers and into the arteries. This contraction opens the semilunar valves (aortic and pulmonary) so blood is ejected, while the atrioventricular valves close to prevent backflow into the atria. This is the pumping phase, unlike diastole, when the chambers relax and fill with blood.

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