Lab #4

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  1. What are the 3 layers of blood vessel walls?
    • 1. Tunica intima (endothelium)
    • 2.Tunica Media
    • 3.Tunica Externa (adventitia)
  2. What is in the CT between intima and media?
    elastic and collagen fibers
  3. Artery or vein:
    Usually smooth: sometimes rippled during vessel constriction
  4. Artery or vein:
    Has elastic membrane
  5. Artery:
    What type of fiber in the smooth muscle of the tunica media?
    Elastic fibers
  6. What is the thickest layer of an artery?
    Tunica media
  7. What types of fibrous CT is in the Tunica Externa?
    In arteries and veins
    Elastic and collagen fibers
  8. Artery or vein:
    Smooth; semilunar valves
  9. Vein:
    What type of fiber is in the smooth muscle layer of tunica media?
    Collagen fibers
  10. What is the thickest layer of a vein?
    Tunica externa
  11. What is on both sides of the smooth muscle in an artery?
    Elastic membrane
  12. The elastic membrane is present in what two layers of the artery?
    • Tunica intima
    • Tunica media
  13. What is the hollow space called?
  14. Vasa Vasorum
    Blood vessels that supply another blood vessel.
  15. What type of cells are on endothelium?
    Simple squamous
  16. Vein:
    The tunica media is made up of what ? (2)
    Smooth muscle and collagen fibers
  17. Vein:
    The tunica externa also called adventitia is composed of what? (3)
    • collagen
    • elastic fibers and smooth muscle
  18. What is the layer in the tunica interna that is closest to the lumen?
  19. Artery or Vein:
    Has valves
  20. What wraps around the arterioles?
    Smooth muscle
  21. What is the arteriole composed of? (2)
    • Endothelium
    • smooth muscle
  22. What are capillaries composed of?
    Sigle layer of squamous epithelium
  23. What is located between the arteriole and the capillaries?
    Precapillary sphincter
  24. Arteries eventually become ________ then ________ Then eventually turns into a ________ then into a Vein.
    • Artetiole
    • Capillaries
    • Venule
  25. What is the fuction of an artery?
    Carries blood under relatively high pressure from heart to arterioles.
  26. What are the 3 layers of the arteriole?
    • Endothelium
    • smooth muscle
    • Connective tissue`
  27. Connects an artery to a capillary, helps control the blood flow into a capillary by vasoconstricting or vasodialation
  28. Provides a membrane through which nutrients, gases, and wastes are exchanged between the blood and tissues fluid; connects to an arteriole
  29. Carrie blood under low pressure to heart, serves a blood reservoir, has valves to prevent backflow.
Card Set:
Lab #4
2012-03-14 03:54:44
Lab test

A and P 2
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