During the later stages of ventricular relaxation, the pressures in their chambers drop below those in the atria. This results in which of the following?
I.rapid drop in atrial pressures
II.opening of the atrioventricular valves
III.rapid ventricular filling
IV.V pressure wave
A) II and III
B) I and II
C) I, II, III, and IV
D) II, III, and IV
Correct Answer:
Verified
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