Which of the following are the three phases of systole? Select all that apply.

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Quizplus · Accepted Answer

Systole is divided into three phases,beginning with the isovolumic or isometric contraction phase,which marks the onset of a ventricular contraction.Once the pressure in the left ventricle exceeds that in the aorta,and the pressure in the right ventricle exceeds that in the pulmonary artery,the semilunar valves open and blood is rapidly ejected.This is the second phase called rapid ejection phase or early systole.It is followed by the third phase of reduced ejection,also known as late systole.So the three phases of systole are isovolumic contraction,rapid ejection (early systole),and reduced ejection (late systole).

Which of the Following Are the Three Phases of Systole