Plowman , 331 - Stroke Volume
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Questions and Answers

What is stroke volume?

  • The volume of blood ejected from the ventricles with each beat (correct)
  • The resistance presented to the contracting ventricle
  • The force of contraction
  • The volume of blood returned to the heart

    • What is preload?

  • The volume of blood returned to the heart (correct)
  • The force of contraction
  • The resistance presented to the contracting ventricle
  • The volume of blood ejected from the ventricles with each beat

    • What is ejection fraction (EF)?

  • The force of contraction
  • The percentage of blood ejected from the heart under resting conditions (correct)
  • The volume of blood ejected from the ventricles with each beat
  • The volume of blood returned to the heart

    • What is end-diastolic volume (EDV)?

    <p>The volume of blood in the ventricles at the end of diastole</p> Signup and view all the answers

    What is end-systolic volume (ESV)?

    <p>The volume of blood in the ventricles at the end of systole</p> Signup and view all the answers

    What is the formula for calculating stroke volume?

    <p>Stroke volume (mL) = end-diastolic volume (mL) - end-systolic volume (mL)</p> Signup and view all the answers

    What is the Frank-Starling Law of the Heart?

    <p>The volume of blood ejected from the ventricles with each beat increases with an increased end-diastolic volume</p> Signup and view all the answers

    What is systolic reserve volume?

    <p>The volume of blood that can still be ejected from the heart</p> Signup and view all the answers

    What is diastolic reserve volume?

    <p>The volume of blood in the ventricles at the end of diastole</p> Signup and view all the answers

    What is the maximum percentage of blood that the heart can eject?

    <p>50-60%</p> Signup and view all the answers

    What are the three factors that determine the amount of blood ejected from the heart?

    <p>Preload, afterload, and systolic reserve volume</p> Signup and view all the answers

    What is afterload?

    <p>The resistance presented to the contracting ventricle</p> Signup and view all the answers

    What is stroke volume?

    <p>The volume of blood ejected from the ventricles with each beat</p> Signup and view all the answers

    What is preload?

    <p>The volume of blood returned to the heart</p> Signup and view all the answers

    What is ejection fraction (EF)?

    <p>The percentage of blood ejected from the heart under resting conditions</p> Signup and view all the answers

    What is end-diastolic volume (EDV)?

    <p>The volume of blood in the ventricles at the end of diastole</p> Signup and view all the answers

    What is end-systolic volume (ESV)?

    <p>The volume of blood in the ventricles at the end of systole</p> Signup and view all the answers

    What is the formula for calculating stroke volume?

    <p>Stroke volume (mL) = end-diastolic volume (mL) - end-systolic volume (mL)</p> Signup and view all the answers

    What is the Frank-Starling Law of the Heart?

    <p>The volume of blood ejected from the ventricles with each beat increases with an increased end-diastolic volume</p> Signup and view all the answers

    What is systolic reserve volume?

    <p>The volume of blood that can still be ejected from the heart</p> Signup and view all the answers

    What is diastolic reserve volume?

    <p>The volume of blood in the ventricles at the end of diastole</p> Signup and view all the answers

    What is the maximum percentage of blood that the heart can eject?

    <p>50-60%</p> Signup and view all the answers

    What are the three factors that determine the amount of blood ejected from the heart?

    <p>Preload, afterload, and systolic reserve volume</p> Signup and view all the answers

    What is afterload?

    <p>The resistance presented to the contracting ventricle</p> Signup and view all the answers

    What is stroke volume?

    <p>The volume of blood ejected from the ventricles with each beat</p> Signup and view all the answers

    What are the three factors that determine the amount of blood ejected from the heart?

    <p>Preload, contractility, and afterload</p> Signup and view all the answers

    What is preload?

    <p>The volume of blood returned to the heart</p> Signup and view all the answers

    What is ejection fraction?

    <p>The percentage of blood ejected from the heart under resting conditions</p> Signup and view all the answers

    What is EDV?

    <p>End-diastolic volume</p> Signup and view all the answers

    What is ESV?

    <p>End-systolic volume</p> Signup and view all the answers

    How is stroke volume calculated?

    <p>SV = EDV - ESV</p> Signup and view all the answers

    What is the Frank-Starling Law of the Heart?

    <p>Increasing EDV to a point increases SV</p> Signup and view all the answers

    What is diastolic reserve volume?

    <p>The volume of blood that can be added to the ventricles during diastole</p> Signup and view all the answers

    What is systolic reserve volume?

    <p>The volume of blood that can be ejected from the ventricles during systole</p> Signup and view all the answers

    What is the normal range of ejection fraction under resting conditions?

    <p>50-60%</p> Signup and view all the answers

    What is the residual volume of blood in the heart?

    <p>The volume of blood that remains in the heart after ejection</p> Signup and view all the answers

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