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Immune - PowerPoint PPT Presentation


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Immune. Plasma B Cell. Antigen Antibody MCHII Macrophage Memory B Cell B Cell T Cell MCHI Killer T/Cytotoxic T. Helper T Cell. The Players…. Antigen enters body U se antibodies to fight (they will be produced by the body and dock to antigen)

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Presentation Transcript
the players

Plasma B Cell

  • Antigen
  • Antibody
  • MCHII
  • Macrophage
  • Memory B Cell
  • B Cell
  • T Cell
  • MCHI
  • Killer T/Cytotoxic T

Helper T Cell

The Players….
specific immunity

Antigen enters body

  • Use antibodies to fight (they will be produced by the body and dock to antigen)
  • Marks antigen and makes antigen stop doing their job
Specific Immunity
humoral

Body is destroying antigen that is free floating

  • B Cells have antibody and MCHII receptors.
  • Antibody attaches to antigen
  • Takes antigen in and breaks it apart
  • Sends a piece of it to MCHII receptor
  • Plasma B Cells Produce antibodies against antigen
  • Produce Memory B cells to remember antigen “for life”
Humoral
cell mediated

A macrophage eats an antigen

  • The antigen is presented on the surface (MHCII)
  • T helper with antibody bonds to MHCII
  • T helper activates cytotoxic T cell
  • Cytotoxic T patrol body for other infected cells (Infected cells have antigen on MHCI receptor)
  • Cytotoxic T will release an interferon and tumor necrosis factor (I- slows down reproduction) (N causes apoptosis)
  • Memory T cells made
Cell Mediated
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