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PHAGOCYTOSIS “Cell eating”----certain white blood cells have the ability to engulf microbes and other foreign  particles. These cells are known as phagocytes, and include several types of white blood cells.    A review of blood----blood consists of a fluid called plasma, in which the formed elements are  found. The formed elements include:     TYPE OF FORMED  ELEMENT NUMBER PER CUBIC MM  OF BLOOD FUNCTION ERYTHROCYTES (RED  BLOOD CELLS) 4.8 - 5.4 MILLION TRANSPORT OF  0 2   AND  CO 2 LEUKOCYTES (WHITE  BLOOD CELLS) 5000 - 10,000 DEFENSE OF THE BODY   1. NEUTROPHILS 60-70% OF TOTAL WBC PHAGOCYTOSIS   2. BASOPHILS  0.5-1%  PRODUCTION OF HISTAMINE   3. EOSINIPHILS 2-4% WORK AGAINST CERTAIN PARASITES AND  SPECIAL PHAGOCYTOSIS
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Unformatted text preview: 4. MONOCYTES 3-8% PHAGOCYTOSIS (AFTER BECOMING MACROPHAGES) 5. LYMPHOCYTES 20-25% B CELLS—ANTIBODY PRODUCTION T CELLS—CELL-MEDIATED IMMUNITY PLATELETS 250,000 - 400,000 BLOOD CLOTTING During many kinds of infections the white blood cell count increases (leukocytosis). Other diseases cause a decrease (leukopenia). The total white count is the number of white cells per cubic mm, but a differential white count is also often performed, which determines the percentage of each specific type of white blood cell. In most bacterial infections, the neutrophils increase in number early in the infection. Later, monocytes increase in number....
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