Cardiac Cycle Phases Quiz
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Questions and Answers

What is the main function of systole in the cardiac cycle?

  • Relaxing the chambers
  • Pumping blood into circulation (correct)
  • Closing the semilunar valves
  • Filling the chambers with blood

    • What happens during atrial systole?

  • Semilunar valves open
  • Atria relax
  • Ventricles contract, pushing blood into the atria
  • Atria contract, pushing blood into the ventricles (correct)

    • What is the end diastolic volume (EDV) in the cardiac cycle?

  • Total volume of blood in the heart at the end of relaxation (correct)
  • Volume of blood in the atria during contraction
  • Amount of blood left in ventricles after stroke volume is pushed out
  • Amount of blood pushed out by ventricles

    • What characterizes ventricular diastole in the cardiac cycle?

    <p>Semilunar valves open and atrioventricular valves closed</p> Signup and view all the answers

    Which phase leads to the opening of the semilunar valves in the cardiac cycle?

    <p>Ventricular systole</p> Signup and view all the answers

    What does stroke volume refer to in the cardiac cycle?

    <p>Amount of blood pushed out by ventricles</p> Signup and view all the answers

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