Question

Which event during the cardiac cycle causes the aortic and pulmonary SL valves to open?

a. atrial diastole
b. atrial systole
c. ventricular diastole
d. ventricular systole

Answer 1

The correct answer is D

Step-by-step explanation:

During ventricular systole, there is blood ejection from the ventricles, aorta and pulmonary artery, necessarily must be opened, to allow blood to pass through and complete the heart cycle.