How Well You Know About Hemodynamics? Quiz

10 Questions | Total Attempts: 741

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How Well You Know About Hemodynamics? Quiz

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Questions and Answers
  • 1. 
    Blood flow is regulated largely by local metabolic effects in:
    • A. 

      Muscle

    • B. 

      Skin

    • C. 

      Brain

    • D. 

      Kidney

  • 2. 
    The portion of the circulatory system with the largest cross-sectional area:
    • A. 

      Capillaries

    • B. 

      Arterioles

    • C. 

      Large Arteries

    • D. 

      Large Veins

  • 3. 
    Vasoconstriction is elicited by all of the following except:
    • A. 

      Carotid artery occlusion

    • B. 

      Haemorrhage

    • C. 

      Lying down

    • D. 

      Asphyxia

  • 4. 
    The linear velocity of blood at the normal cardiac output in the aorta.
    • A. 

      32 cm/s

    • B. 

      64 cm/s

    • C. 

      8 cm/s

    • D. 

      50 cm/s

  • 5. 
    Laminar flow will occur in conditions in which Reynold’s number.
    • A. 

      More than 3000

    • B. 

      Less than 3000

    • C. 

      Less than 2000

    • D. 

      More than 2000

  • 6. 
    The following facts about arteriole are true except
    • A. 

      They have thick muscular walls

    • B. 

      They have rich sympathetic innervation

    • C. 

      They have smallest internal diameter

    • D. 

      The pressure drop is greatest than that across any other vessel

  • 7. 
    Arterioles and capillaries differ as follows
    • A. 

      Arterioles have no adventitia

    • B. 

      Capillaries have no muscle coat

    • C. 

      Capillaries have no intimal layer

    • D. 

      Only difference is diameter of lumen

    • E. 

      None of the above

  • 8. 
    The murmurs in the circulation are characterictically heard
    • A. 

      In the conditions where the viscosity of blood increases

    • B. 

      In all situations where there is turbulence

    • C. 

      When flow passes suddenly from a narrower to wider vessel

    • D. 

      When blood enters the parent vessel

  • 9. 
    Windkessel effect is seen in
    • A. 

      Aorta

    • B. 

      Capillaries

    • C. 

      Arterioles

    • D. 

      Left ventricular musculature

  • 10. 
    Velocity of blood flow is inversely proportional to
    • A. 

      Viscocity

    • B. 

      Blood flow volume

    • C. 

      Cross sectional area

    • D. 

      Length