venous drainage of the head

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Author:
jackiedh
ID:
44375
Filename:
venous drainage of the head
Updated:
2010-10-23 13:03:52
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head neck figure
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h and n fig 14 venous drainage
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  1. communicating channels between blood vessels
    anastomosis
  2. large collection of blood vessels
    plexus
  3. blood filled spaces between two layers of tissue
    venous sinus
  4. what is the venous flow?
    working from the tissue to the heart
  5. what is bacteremia and what can it spread in?
    • bacteria in the blood.
    • spreads in anastamosis
  6. plaques of cholesterol build up on the walls of the arteries and narrow or block it
    atherosclerosis
  7. what is a thrombus?
    plaque that stays in the blood vessel
  8. what is the sinus?
    fluid filled space inbetween
  9. what is an embolus? "e = escaping"
    plaque getting off the wall
  10. an embolus can cause a _______ ________ or _______.
    • heart attack
    • stroke
  11. what is a hemmorhage?
    • large amounts of blood escaping from the vessel, bleeding.
    • i.e. hem on scaling
  12. small amount of blood escaping into the surrounding tissue; bruising
    hematoma
  13. what hapens when the pterygoid plexus is hit during injection?
    hematoma
  14. it cushions the maxillary artery during mastication. it can drain or fill to reduce pressure
    pterygoid plexus
  15. where does the middle meningeal vein go to?
    the brain
  16. what is the supratrochlear vein a part of?
    the eye muscle

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