The passage of blood from the atria to the ventricles is regulated by which valves?
A. Interventricular
B. Interatrial
C. Semilunar
D. Atrioventricular
E. Pulmonary
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If the right ventricle begins to pump an increased amount of blood, this soon arrives at the left ventricle, stretches it more than before, and causes it to increase its stroke volume and match that of the right. This is an example of __________.
A. preload
B. afterload
C. contractility
D. cardiac reserve
E. None of the choices are correct.
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