path chapter 2.txt

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tigermom23
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30980
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path chapter 2.txt
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2010-08-23 18:50:19
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pathology chapter 2
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  1. inflammation>>immunity>>repair
    the body's response to injury
  2. begins the body's process of healing
    imflammation
  3. alteration that causes tissue damage
    injury
  4. 2 types of oral injuries
    • physical
    • chemical
  5. affects teeth, tissue, and bone
    physical injuries
  6. occurs from the application of caustic substances
    chemical injury
  7. causes injury by invading the oral tissue
    microorganisms
  8. renders the tissue more susceptible to injury
    nutritional deficiencies
  9. ___is a physical barrier to injury
    intact skin or mucosa
  10. protects the respiratory system
    cilia and mucus
  11. ____kills microorganisms that are taken in through the mouth
    stomach acid
  12. has antimicrobial activity-flushes eyes and mouth
    saliva and tears
  13. nonspecific response to injury-always the same no matter what causes the injury
    inflammation
  14. limited to the area of injury
    local
  15. if injury is extensive
    systemic
  16. can be seen or read clinically
    signs
  17. told by patient
    symptoms
  18. short-lasting only a few days--repair of tissue may begin immediately
    acute
  19. may last weeks, months, or indefinitly
    chronic
  20. true/false--tissue repair can only occur if the source of injury is removed
    true
  21. 5 signs of inflammation
    • redness
    • heat
    • swelling
    • pain
    • loss of function
  22. arterioles, capillaries, and venules
    microcirculation
  23. inflammation:
    • injury
    • vasoconstriction
    • vasodilation
    • ^ permeability
    • exudate leaving
    • blood thickens
    • flow slows
    • migration and pavementing
    • emigration
    • phagocytosis
  24. increased blood flows fills capillaries in injured tissue
    hyperemia
  25. what is hyperemia responsible for
    • redness
    • heat
  26. 2 types of exudate
    • serous
    • purulent
  27. true/false: exudate helps to dilute injurious agents that may be present-and be carried to the lymphnodes
    true
  28. swelling of the tissue
    edema
  29. collection of pus accumulated in a cavity formed by the tissue
    abcess
  30. drainage channel through which exudate escapes the tissue
    fistula
  31. true/false: exudate formation causes pain by pressing on sensory nerves
    true
  32. WBC adhear to the inner walls of the injured blood vessel
    pavementing
  33. WBC leave vessels and enter injured tissue
    emigration
  34. ingest and digest "bad guys"
    phagocytosis
  35. important process of inflammation
    • emigration of WBC(leukocytes) into the injury site
    • chemotaxis(movement of WBC into injury
    • phagocytosis
  36. 2 types of WBC
    • neutrophil
    • monocyte(blood)/macrophage(tissue)
  37. another name for the neutrophil-multilobed nucleus
    polymorphonuclear leukocyte
  38. first WBC at the injury in response to chemotactic factors
    neutrophil
  39. short lived, 60%-70% of intire WBC population
    neutrophil
  40. 2nd WBC to emigrate into tissue
    monocyte(blood)
  41. 3 systems of the plasma proteins
    • kinin
    • clotting mechanism
    • complement system
  42. mediates inflammation by ^ dilation of blood vessels at the injury site
    kinin system
  43. induces pain
    kinin system
  44. primary kinin system
    bradykinin
  45. function in the clotting of blood, keeps foreign substances at injury site, protects adjacent tissues
    clotting mechanism
  46. important in tissue repair because it forms future framework for the repair process
    clotting mechanism
  47. composed of a series of plasma proteins--activated in a cascading fashion
    complement system
  48. functions during both inflammatory and immunity
    complement system
  49. enhancement of phagocytosis
    opsonization

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