Inflammatory response.txt

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Author:
obchase
ID:
23351
Filename:
Inflammatory response.txt
Updated:
2010-06-17 11:04:06
Tags:
Microbiology Inflammation
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Inflammatory response questions
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  1. Two first barriers to hinder microbial invasion.
    • Skin
    • Mucous membranes
  2. In an inflammatory response vasculature refers to what three blood vessels?
    • Arteries
    • Capillaries
    • Veins
  3. List 4 most important chemicals released by damaged cells.
    • Histamine
    • Prostglandins
    • Leukotrienes
    • Compliment Proteins
  4. Describe serous
    Clear watery fluid
  5. Serosanguinous
    Bloody fluid
  6. Describe purulent
    Pus
  7. What are the components of pus?
    Dead tissue cells and dead leukocytes
  8. What are pyrogens?
    Chemicals that trigger the hypothalmus to raise body temperature.
  9. Describe exogenous and endogenous infections and give examples for each.
    • Exogenous infections occur from sources outside of the body. Spores entering an open wound.
    • Endogenous infections occur from bacteria already present in the body. Yeast infection.
  10. Describe three benefits of fever
    • Decreases binary fission
    • Increases production of white blood cells
    • Decreases availability of iron (Fe)
  11. Why and how do chills accompany fever?
    Through vasoconstriction and mild muscle contractions.
  12. What is an antipyretic? Give two examples.
    Drugs that reduce fever. Ibuprofen and aspirin
  13. List the general activities of phagocytes
    Eating unwanted materials.
  14. Define the term diapedesis.
    Process whereby leukocytes leave intact blood vessels by squeezing between lining cells, phagocytize bacteria, re-enter the blood vessels and then return to the liver to be recycled.
  15. What are interferons?
    Special proteins that will attack viruses.
  16. What are defensins?
    New group of specialized proteins that defend against bacterial infection.
  17. Physiologically, how does a fever occur?
    Pyrogen sets the hypothalamus to a higher temperature. Vasoconstriction occurs to hold in heat. And mild muscle contractions occur creating more heat.

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