Types of WBCs Anatomy & Phys lab II

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iishvo
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260471
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Types of WBCs Anatomy & Phys lab II
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2014-02-05 18:54:39
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types WBCs anatomy
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anatomy and phys II lab
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  1. Leukocytes:
    • white blood cells
    • immunologically protective cells that are capable of leaving the circulatory system and migrating into tissues to sites of inflammation or infection
    • when mature = nucleated
  2. Two categories of leukocytes are?
    granulocytes and agranulocytes
  3. Granulocytes are:
    distinguished by color of granule present in cytoplasm after Wright's staining
  4. The 3 types of granulocytes are?
    neutrophils, eosinophils, and basophils
  5. Neutrophils
    • most abundant WBCs (40-70% of population)
    • 3-7 lobes
    • act as phagocytic cells
    • granules do not stain a distinct color
    • acute infections
    • *nucleus looks like a clocklike cell*
  6. Eosinophils
    • granules stain RED (ACID STAINING)
    • 2-7% of population
    • ATTACK PARASITIC WORMS
  7. Basophils
    • lease common type of WBCs (less than 1%)
    • granules stain BLUE (BASIC STAINING) BASOPHILS STAIN BLUE
    • U or S shaped nuclei
    • RELEASE histamine and inflammatory chemical
  8. Agranulocytes
    • present in blood
    • more common in lymphoid tissues of body
    • normal, unlobed nuclei
    • include lymphocytes and monocytes
  9. Lymphocytes
    • most common WBC after neutrophil (25% population)
    • nucleus accounts for most of cell mass
    • 2 types of lymphocytes = B AND T lymphocytes
    • involved in immune responses
  10. Monocytes
    • large cells that make up 3-8% of population
    • large kidney shaped nuclei
    • in tissues,¬†DEVELOP INTO MACROPHAGES¬†that act to phagocytize debris during chronic infections

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