Which of the Following Correctly Gives the Orders of Events

question 47

Multiple Choice

Which of the following correctly gives the orders of events in a cardiac cycle?

• A) atria contract, ventricles contract, AV valves close, ventricles relax, semilunar valves close
• B) ventricles contract, AV valves close, atria contract, ventricles relax, semilunar valves close
• C) ventricles relax, atria contract, ventricles relax, AV valves close, semilunar valves close
• D) AV valves close, ventricles relax, atria contract, semilunar valves close, ventricles contract
• E) ventricles contract, atria contract, AV valves close, ventricles relax, semilunar valves close

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