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  • 1 Re-visiting our immune system; Adaptive immunity:immune cells and immune regulation

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  • What is the role of the immune system?

    Defense against invading pathogens
  • Name the three "organs" of the immune system:

    Mechanical bariers
    Blood circulation
    Lymphe circulation
  • What is the mechanical barrier of the immune system?

  • What is important for the lymphe circulation, regarding the organs of the immune system?

    Thymus, lymph nodes, Specialized lymphoid structures located in a variety of organs: e.g. MALT (mucosa-associated lymphoid tissue)

  • What does a mastcell do?

    Expulsion of parasites from body through release of granules containing histamine and other active agents
  • What does a monocyte do?

    circulates, precursor cell to marcophage
  • What does a macrophage do?

    phagocytosis and killing of microorganisms. Activation of T cells and initiation of immune responses
  • What does a small lymphocyte do?

    produces antibodies (b cells) or cytotoxic and helper functions (T cells)
  • What is and does a plasma cell do?

    Fully differentiated form of B cell that secretes antibodies
  • What is characteristic for the innate immune responses?

    not very specific

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