Chapter 20 CS continued

Card Set Information

Author:
jess03
ID:
9367
Filename:
Chapter 20 CS continued
Updated:
2010-03-06 22:57:45
Tags:
over pgs 1 to 3 of notes
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Description:
arteries veins and capillaries
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  1. Define

    1) arteries
    2) veins
    3) capillaries
    1) Arteries carry blood away from the heart

    2) Veins carry blood towards the heart

    3) Capillaries connect veins and arteries to one another
  2. What are the 3 layers of vessel walls?
    • 1) Tunica interna
    • 2) Tunica media
    • 3) Tunica externa
  3. Tunica interna
    • - Selective permeable membrane
    • - Secretes chemicals to vasodilate or contrict
    • - It can help repel platelets from sticking together unless injured or inflammed
  4. Tunica media
    - Is the thickest

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