General Cytology Lab

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Author:
kris10leejmu
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183524
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General Cytology Lab
Updated:
2012-11-17 19:47:51
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Lab Tech ll Practical
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Lab Tech ll
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  1. Define karyorrhexis.
    • sign of degenerating segs
    • rupture of cell nucleus
    • chromatin disintegrates into variably sized granules
  2. Define pyknosis.
    • sign of degenerating segs
    • nucleus is small, condensed and very dark
  3. Define karyolysis.
    • sign of degenerating segs
    • swelling of the nuclear membrane
    • cell gradually loses chromatin
    • ragged nucleus with reduced staining
  4. Describe chronic inflammation.
    > 50% of the inflammatory cells are monocytes and macrophages
  5. When do we often see chronic inflammation?
    with systemic fungi and foreign bodies
  6. Describe chronic active inflammation.
    • > 50% - 70% of the inflammatory cells are neutrophils
    • the remainder are monocytes and macrophages
  7. What is another term for chronic active inflammation?
    mixed inflammation
  8. Describe acute inflammation.
    > 70% of the inflammatory cells are segs
  9. What are the different types of inflammatory cells we could see in a cytology?
    • neutrophils
    • eosinophils
    • macrophages
    • giant cells
    • occasionally mast cells - especially allergic inflammation
  10. What do we need to note about nuclear morphology?
    • normal
    • karyorrhexis
    • karyolysis
    • pyknotic
  11. Describe eosinophilic inflammation.
    > 10% eosinophils is considered eosinophilic inflammation
  12. What does eosinophilic inflammation often indicate?
    allergies, parasites, or eosinophilic diseases
  13. What are the characteristics of a degenergating seg?  Degenerating segs are often seen in the presence of what?
    • pyknosis
    • karyorrhexis
    • karyolysis
    • cytoplasmic basophilia
    • vaculoes
    • seen in the presence of bacterial toxins
  14. Actinomyces

    • filamentous bacterial rods
    • these resemble fungal hyphae but lack obvious cell walls and are more delicate in appearance than hyphae

  15. What type of inflammatory reaction is this?
    acute inflammation

  16. What type of inflammatory reaction is this?
    acute inflammation

  17. What type of inflammation is this?
    chronic active inflammation

  18. What type of inflammation is this?
    chronic active inflammation

  19. What type of inflammation is this?
    chronic inflammation with bacteria

  20. What type of inflammation is this?
    chronic inflammation

  21. What type of inflammation is this?
    eosinophilic inflammation

  22. What type of inflammation is this?
    eosinophilic inflammation
  23. karyorrhexis
  24. karyorrhexis
  25. karyorrhexis
  26. pyknosis
  27. pyknosis
  28. Tissue can be classified into what 4 primary types?
    • epithelial tissue
    • connective tissue
    • muscle tissue
    • nervous tissue
  29. The cells of blood forming tissues are sometimes refferred to as _____.
    hemic tissues
  30. Where are hemic tissues formed?
    in the bone marrow, spleen, and lymph nodes
  31. What do normal epithelial cells look like?
    • tend to cling together in clumps, clustes or rafts of cells
    • round, uniform in size with delicate chromatin with a small single nucleolus
    • abundance of cytoplasm
  32. What do normal connective cells look like?
    • individual cells and clusters are found
    • varying amounts of cytoplasm
    • cell membrane may be indistince and the cytoplasm is typically clear, expect osteoblasts

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