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Questions and Answers
Which cells lack prominent granules but may appear finely granular?
Which cells lack prominent granules but may appear finely granular?
- Monocytes (correct)
- Natural killer cells
- Basophils
- T-cells
What is the function of monocytes in the immune system?
What is the function of monocytes in the immune system?
- To kill foreign or virally-infected cells
- To mediate cell-mediated immunity
- To produce antibodies
- To act as antigen-presenting cells (correct)
Which leukocyte accounts for less than 0.2% of leukocytes in a differential white cell count?
Which leukocyte accounts for less than 0.2% of leukocytes in a differential white cell count?
- T-cells
- Lymphocytes
- Basophils (correct)
- Monocytes
Which leukocyte is responsible for producing antibodies?
Which leukocyte is responsible for producing antibodies?
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Which type of lymphocyte is involved in cell-mediated immunity?
Which type of lymphocyte is involved in cell-mediated immunity?
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Which leukocyte accounts for less than 0.2% of leukocytes in a differential white cell count?
Which leukocyte accounts for less than 0.2% of leukocytes in a differential white cell count?
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Study Notes
- Agranulocytes include monocytes and lymphocytes.
- Monocytes are blood form of macrophages and act as antigen-presenting cells.
- Monocytes lack prominent granules but may appear finely granular.
- Lymphocytes are cells of specific acquired immunity and have a spherical nucleus.
- T-cells are involved in cell-mediated immunity and B-cells produce antibodies.
- Natural killer (NK) cells comprise a third class of lymphocyte.
- NK cells kill foreign or virally-infected cells without antigen-antibody interaction.
- A differential white cell count involves counting at least 100 WBCs and tallying them.
- Normal percentages for each leukocyte are provided in Table 11-1.
- Basophils account for less than 0.2% of leukocytes in a differential white cell count.
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