Blood Vessels (Structure, Physiology & Dynamics) - Quiz #8 On Thurs. 8/26

18 Questions | Total Attempts: 216

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Blood Quizzes & Trivia

Questions and Answers
  • 1. 
    The innermost layer of a blood vessel made up of a single layer of squamous endothelial cells is the __________  ___________.
  • 2. 
     _____________ cells line the inner surface of the entire circulatory system.
  • 3. 
    The ___________  ____________ is the middle layer of a blood vessel and is composed of smooth muscle and a thin layer of elastic tissue.  It is controlled by the autonomic nervous system.
  • 4. 
    The smooth muscle middle layer of blood vessels is much thicker in...
    • A. 

      Arteries

    • B. 

      Veins

  • 5. 
    The __________  ___________ or ___________ is the outer layer of blood vessels and is composed of connective tissue that functions to reinforce and support the vessel.
  • 6. 
    The thick muscular middle layer in _________ allows them to resist large ___________ generated from the hearts pumping action.
  • 7. 
    The thin muscular layer in __________ allows them to collapse and also hold more blood (approx 70-80%).
  • 8. 
    Movement of blood back to the heart is aid by what 3 factors?
  • 9. 
    Valves in veins are most commonly found in the ______________.
  • 10. 
    There are valves in the IVC, portal veins, and the pulmonary veins
    • A. 

      True

    • B. 

      False

  • 11. 
    Capillary walls are made up of only one layer, the __________  ___________.
  • 12. 
    The primary force by which gases are exchanged between the capillary walls and cells in the body is called _____________.
  • 13. 
    A secondary force that moves water and dissolved materials from the capillaries into the tissue fluid is the ___________ of blood.
  • 14. 
    A force that moves fluid into the capillaries is called __________  ___________.
  • 15. 
    An increase in the diameter of a blood vessel and therefore allowing more blood to an area is called ______________.
  • 16. 
    A decrease in diameter of a blood vessel, causing a decrease of blood flow is called __________________.
  • 17. 
    The blood flow into individual capillaries is regulated by smooth muscles that encircle the entrance to the capillary called a ______________  _______________.
  • 18. 
    Precapillary sphincters are only on the venous side of cells.
    • A. 

      True

    • B. 

      False

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