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?
1) Rapid drop in atrial pressures
2) Opening of the atrioventricular valves
3) Rapid ventricular filling
4) V pressure wave
A)2 and 3 only
B)1 and 2 only
C)1, 2, 3, and 4
D)2, 3, and 4 only

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The Answer of 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?
1) Rapid drop in atrial pressures
2) Opening of the atrioventricular valves
3) Rapid ventricular filling
4) V pressure wave
A)2 and 3 only
B)1 and 2 only
C)1, 2, 3, and 4
D)2, 3, and 4 only

During the Later Stages of Ventricular Relaxation, the Pressures in Their