Histology-Fall11 Blood

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Author:
catorresdiaz
ID:
101386
Filename:
Histology-Fall11 Blood
Updated:
2011-09-12 22:58:20
Tags:
histology lab blood
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Description:
Histology-Fall11 Blood
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  1. BLOOD FILM

    Characteristics: contains formed elements—erythrocytes, platelets, leukocytes; also plasma.

    Function: Transport of gases (oxygen and carbon dioxide), ions, proteins and lipids among other things.
  2. NEUTROPHIL

    Charcteristics:
    60-70% circulating leukocytes, divided into two to five segments or lobes, light-staining.

    Function: Phagocytosis of foreighn cells, toxins, and viruses; involved in bacterial infections.
  3. NEUTROPHIL W/DRUMSTICK

    Characteristics:
    Small lobe protrudes from the nucleus, known as "drumstick." It represents the inactive sex chromosome of the cell (Barr body).

    Location: Found solely in females.
  4. EOSINOPHIL

    Characteristics:
    Constitute 2-4% of circulating Leukocytes. Bilobed nucleus, reddish-orange granules.

    Function: Effective against parasitic-worm infections; involved in allergic reactions.
  5. BASOPHIL

    Characteristics:
    0.5-1% of circulating Leukocytes (least numerous of all leukocytes). Nuclei stain dark blue-purple, numerous dark granules may sometimes mask the nucleus.

    Function: A role in allergic responses. Granules contain histamines (vasodilators) and heparin (anticoagulant).
  6. SMALL LYMPHOCYTE

    Characteristics:
    Large dark purple staining nucleus with thin rim of pale blue cytoplasm; accounts for 255-35% of circulating leukocytes.

    Functions: B-cells involved in humoral immunity and produce antibodies; T-cells involved in cell-mediated immunity to destoy foreign cells.
  7. LARGE LYMPHOCYTE

    Characteristics:
    More abundant and basophilic cytoplasm than small lymphocytes; also cytotoxic or natural killer cells; may function in absence of antibodies.

    Function: Destroy tissue grafts, tumor cells, and cells infected with viruses through production of perforins.
  8. MONOCYTE

    Characteristics:
    3-8% of circulating leukocytes. Kidney-shapped or horseshoe-shaped nucleus.

    Function: Migrate into tissues, where they become macrophages and sere in phagocytosis of foreign particles such as viruses and bacteria.
  9. NEUTROPHILIA

    Increased neutrophil count.

    Cause: Bacteria Infection.
  10. IRON DEFICIENCY ANEMIA

    Anemia: Messes up with the form of erythrocytes. Not enough healthy red blood cells.

    Red blood cells: provide O2 to the tissues.
  11. CHRONIC LYMPHOCYTIC LEUKEMIA

    There's too many lymphocytes that are about the same size. Occurs over a long period of time.

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