final exam

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mika147
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55366
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final exam
Updated:
2010-12-12 18:04:53
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Cells
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Cells
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  1. Neotrophils
    Are phagisites/granulocytes

    • 1. Most Abundant.
    • 2. 55-75% (3,000-7,500/mm3)
    • 3. Stain poorly
    • 4. short live cells. few hours to few days of life, but produced 80,000,000new cells /minnute by bone marrow
  2. Eosinophilis
    • 1) 1-4% of WBC (50-400/mm3 of blood)
    • 2) Phagosites, but kill microbes extracellularly
    • 3) Granules, stain red with acidic dye eosin (dye used to stain leukocytes)
    • 4) Nuclue appears lobed
    • 5) Granules contain distructive enzymes for killing bacteria
    • 5) Leukotrienes, prostaglandins, chemicals that promotes inflammation
    • 6) Live 8-12 days
  3. Basophils
    • 1) make up 0-1% of WBC (25-100/mm3 of blood)
    • 2) Granules stain dark purplish blue (baso) w/ basic dye methylene blue
    • 3) Have a lobed nucleus
    • 4) Release histamine, leukotrienes, and prostaglandins
    • 5) Live few hours to few days
  4. Mononuclear/Agranulocytes
    Have compact nuclei and have no visible cytoplasmic granules.
  5. Monocytes
    • 1) Make up 2-8% WBC (100-500/mm3 blood)
    • 2) Are important in phagocytosis and serve as antigen-presenting cells in the adaptive immune responses
    • 3) Differentiate into macrophages and dendritic cells when they leave the blood and enter the tissue
    • 4) Long lived (for months) and multiply
  6. Lymphocytes
    • 1) 25-40% of the WBCs (1,500-4,500 of blood).
    • 2. mediate the adaptive immune responses.
    • 3.circulate back and forth between the blood and the lymphoid system of the body
    • 4.
    • nThey have a life span of days to years.
    • ne. There are 3 major populations of lymphocytes: B-Lymphocytes, T-Lymphocytes, NK cells

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