Heart Sound Identification Quiz
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Questions and Answers

Which heart sound is present after $1?

  • Iso Volumetric Contraction (IVC)
  • Iso Volumetric Relaxation (IR)
  • Opening snap
  • Ejection click (d/t aortic and pul. valve opening) (correct)

    • What is the main cause of the splitting of the 2nd heart sound?

  • Opening snap
  • Closure of the aortic and pulmonary valve (correct)
  • Iso Volumetric Contraction (IVC)
  • Iso Volumetric Relaxation (IR)

    • What is the function of the Iso Volumetric Relaxation (IR) stage?

  • Approximately 70% filling of ventricle occurs
  • No blood is entering or leaving the heart
  • Blood is trying to come back into ventricles (correct)
  • Approximately 30% filling of ventricle occurs

    • What is the function of the Iso Volumetric Contraction (IVC) stage?

    <p>No blood is entering or leaving the heart</p> Signup and view all the answers

    Why is $2 always written as A2P2?

    <p>Aortic valve closes before the pulmonary valve</p> Signup and view all the answers

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