The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the
A)atrial systole.
B)early diastolic filling phase.
C)late diastolic filling phase.
D)ventricular ejection of ventricular systole.
E)dicrotic phase.

Question

Quizplus · Accepted Answer

During ventricular systole, the mitral valve is closed to prevent backflow of blood into the left atrium, while the aortic valve is open to allow blood to be ejected from the left ventricle into the aorta. Therefore, option D, ventricular ejection of ventricular systole, is the correct choice.

The Phase in the Cardiac Cycle When the Mitral Valve