Causes of Turbulence and Stasis in Blood Flow
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Questions and Answers

Which of the following factors is the most important determinant of whether vascular occlusion will cause damage?

  • The size of the occluded vessel
  • The rate of development of the occlusion
  • The susceptibility of the tissue to hypoxia
  • The nature of the vascular supply (correct)
  • Which of the following tissues is the most resistant to infarction?

  • The lungs
  • The liver
  • The hand and forearm
  • All of the above (correct)
  • What is the primary reason that slowly developing occlusions are less likely to cause infarction?

  • They are less damaging to the surrounding tissue
  • They allow time for the development of alternative perfusion pathways (correct)
  • They are less likely to completely occlude the vessel
  • They are less likely to cause hypoxia in the affected tissue
  • How long can neurons withstand being deprived of their blood supply before undergoing irreversible damage?

    <p>3 to 4 minutes</p> Signup and view all the answers

    Which of the following tissues is the most sensitive to ischemia?

    <p>Neurons</p> Signup and view all the answers

    How long can myocardial cells withstand ischemia before dying?

    <p>20 to 30 minutes</p> Signup and view all the answers

    Which type of vascular circulation is most susceptible to infarction?

    <p>End-arterial supply</p> Signup and view all the answers

    What is the most important factor that determines whether vascular occlusion will cause death of a tissue?

    <p>The presence of an alternative blood supply</p> Signup and view all the answers

    Which of the following is true about the effect of slowly developing occlusions?

    <p>They are less likely to cause infarction</p> Signup and view all the answers

    Which of the following tissues has the highest susceptibility to hypoxia?

    <p>Neurons</p> Signup and view all the answers

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