Atherosclerosis

  1. What type of disorder is atherosclerosis?
    Inflammatory vascular disorder
  2. Treatments used to be limited to?
    Attempts to control cholesterol levels
  3. Main layers of a normal artery from innermost to outermost
    • Tunica intima
    • Tunica media 
    • Adventitial layer
  4. The layers of the artery are actually thick enough to have their own supply. This is done by ____ ____
    vasa vasorum
  5. What type of cells make up the individual layers of the artery?
    • Endothelial layer& subendothelial layer: epithelial (mostly) and smooth muscle cells
    • Tunica media: smooth muscle cells
    • Adventitial layer: many connective tissues like fibroblast cells
  6. The flaw of lipids that plays into the development of atherosclerosis
    They don't travel well in blood because blood is water based solution and lipids are polar.
  7. Which proteins provide the necessary task of lipid transport?
    Apolipoproteins
  8. Apolipoproteins are produced by the ____. Name three types
    • Liver
    • HDLs (high density lipoprotein)
    • LDLs (low density lipoprotein)
    • VLDLs (very low density lipoprotein) **least relevant at the moment
  9. ____ are wrongfully called bad cholesterol and ____ are wrongfully called good cholesterol. What is their relation to cholesterol?
    • LDLs 
    • HDLs
    • They are transport lipids, some of which happen to be cholesterol
  10. The endothelial layer has receptors for ___ and distributes them throughout the ________ layer where they accumulate.
    • LDLs
    • subendothelial layer
  11. As LDLs metabolize cells they encounter it attracts a group of white blood cells: ______/______. The _____ consume lipids containing cholesterol and swell into ____ ____ as they accumulate lipids
    • monocyte/ macrophage
    • macrophages
    • foam cells
  12. As macrophages turn into foam cells, the begin to release ____ like IL1 which is a form of _____ _____.
    • cytokines 
    • inflammatory cytokine
  13. What attracts smooth muscle cells?
    Foam cells releasing cytokines
  14. What is the result of the accumulation of foam and smooth muscle cells?
    A bulge begins to develop in the inner surface of the blood vessel and the bulge can impair blood flow in the vessel.
  15. What happens to the bulge formed from the accumulation of foam cells and smooth muscle cells?
    • It begins to calcify and harden
    • it can even rupture
  16. If the arterial bulge ruptures it will expose the contents of the underlying subendothelial layer like ____ & ___ _____ ____. What do they induce?
    • collagen and von willebrand factor 
    • inducers of clotting factors, they make blood clots begin to form
  17. Where do formed blood clots actually begin to run into trouble?
    The blood clots actually just flow along vessels without incident until they inevitably reach portion of the vessel that is too small for them to pass through. This will lead to blockage
  18. People who exercise often produce more ____, this helps reduce the accumulation of _____ in the subendothelial layer. What is the result?
    • HDLs
    • LDLs
    • More of their lipid transport is done with the significantly safer HDLs
  19. Exercise can be used to prolong the development of _______. Some studies say it even reduces the size of _____. However, there is a limit to how many ____ will be produced.
    • atherosclerosis 
    • plaques
    • HDLs
  20. Treatment for atherosclerosis now includes:
    • anti-inflammatory drugs
    • getting rid of white blood cells
    • statin (drug that reduces cholesterol)
  21. The mutant lipoprotein that can be successfully used to treat atherosclerosis but never caught on due to the unattractive prospect of multiple daily injections
    apolipomilano or apomilano
Author
chikeokjr
ID
322853
Card Set
Atherosclerosis
Description
quiz
Updated