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Cardiovascular System: Cardiac Cycle

Interactive Physiology® Quiz: Cardiovascular System: Cardiac Cycle

This activity contains 10 questions.

Question 1
1 Ventricular filling occurs during what phase of the cardiac cycle?
End of Question 1

Question 2
2 During what phase of the cardiac cycle does the ventricle contract, raising intraventricular pressure and, thus, closing the AV valves?
End of Question 2

Question 3
3 During this phase of the cardiac cycle, the pressure in the ventricle increases and forces the semilunar valves open.
End of Question 3

Question 4
4 What pressure difference causes the aortic semilunar valves to close?
End of Question 4

Question 5
5 What pressure difference causes the AV valves to open?
End of Question 5

Question 6
6 State which valves are open or closed during isovolumetric relaxation.
End of Question 6

Question 7
7 During the cardiac cycle, heart valves open and close because of:
End of Question 7

Question 8
8 The tricuspid valve directs blood flow in which direction?
End of Question 8

Question 9
9 The bicuspid valve directs blood flow in which direction?
End of Question 9

Question 10
10 The filling of the ventricles is caused mainly by:
End of Question 10

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