What is ventricular systole?

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Multiple Choice

What is ventricular systole?

Ventricular systole is the contraction phase of the ventricles that pumps blood out of the heart into the pulmonary and systemic circuits. When the ventricles contract, pressure rises enough to close the atrioventricular valves and open the semilunar valves, allowing blood to be ejected into the pulmonary artery and aorta. This phase follows atrial contraction and ends as the ventricles begin to relax (ventricular diastole). The other options describe atrial contraction, ventricular relaxation, or the interval between heartbeats, none of which capture the ventricles actively contracting and ejecting blood.

Ventricular systole is the contraction phase of the ventricles that pumps blood out of the heart into the pulmonary and systemic circuits. When the ventricles contract, pressure rises enough to close the atrioventricular valves and open the semilunar valves, allowing blood to be ejected into the pulmonary artery and aorta. This phase follows atrial contraction and ends as the ventricles begin to relax (ventricular diastole). The other options describe atrial contraction, ventricular relaxation, or the interval between heartbeats, none of which capture the ventricles actively contracting and ejecting blood.

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