The accompanying diagram shows the three stag | vedclass

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Question

(A) The cardiac cycle begins with atrial systole (not shown),followed by ventricular filling,ventricular systole,and ventricular diastole.Diagram $B$

Vedclass · Accepted Answer

$B, A, C$

Vedclass · Answer

(A) The cardiac cycle begins with atrial systole (not shown),followed by ventricular filling,ventricular systole,and ventricular diastole.Diagram $B$ shows atrial diastole and ventricular filling (blood flowing from atria to ventricles).Diagram $A$ shows ventricular systole (ventricles contracting,blood being pumped into arteries).Diagram $C$ shows ventricular diastole (ventricles relaxing,blood filling from atria).The correct sequence of these stages in the cardiac cycle is $B$ (atrial diastole/ventricular filling) $\rightarrow$ $A$ (ventricular systole) $\rightarrow$ $C$ (ventricular diastole).Therefore,the correct sequence is $B, A, C$.

The accompanying diagram shows the three stages in the cardiac cycle. Which of the following is the correct sequence?

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