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What accelerates the rate of leukopoiesis during periods of stress?
Colony Stimulating Factors and Interleukins
Characteristics of all leukocytes
All contain a nucleus, exhibit diapedesis (emmigration), perform some immune function
What granules and granule materials do neutrophils contain?
Lysozyme, substrate enzymes, oxidizing enzymes, and defensins
enzyme-like material, works against membrane components--peptidoglycan; used inside the cell and also secreted.
What are the characteristics of Eosinophils?
uncommon WBC (2-4%), granular leukocyte, slightly phagocytic
What three specific events can activate an eosinophil?
presence of eosinophil chemotaxic factor (most common mechanism); presence of an antibody label antigen; parasitic infection
Monocytes are phagocytic and may exhibit a great deal of specialization vesicles: phagosomes, lysosomes, peroxiosomes
Natural Killer Cells
The least specialized of the lymphocytes, used to destroy cells lacking the correct self cell codes (glycocalyx codes).
Antigen Presenting Cell
any phagocytic cell that will disassemble an antigen, form a safe copy of it, then initiate an immune response.
the most widely distributed lymphocyte. The T-cells will also differentiate, forming specialized cells during an immune response.
Which leukocytes function in acquired immunity and which leukocytes function in innate immunity?
Lymphocytes are used for protection in acquired immunity. All other leukocytes provide protection in innate immunity.
What do Antigen Presenting Cells do?
digest then present antigen for the stimulation of an immune response
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