1350: Immunologic Response stages
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Stage 1: Recognition
Explain what happens during this stage.
Lymph nodes and lymphocytes survey body via bloodstream.
When foreign material encountered, macrophages remove or imprint structure.
- Body recognizes own structure (self)
- recognizes foreign markers (nonself)
Triggers second stage: Proliferation.
Stage 2: Proliferation.
Explain what happens during the second stage.
Stimulates B and T lymphocytes to ENLARGE and proliferate.
B: releases Abo
T: cytotoxic T killer
Stage 3: Response
Explain what happens in stage 3.
Lymphocytes respond in a CELLULAR or HUMORAL response.
Stage 4: Effector.
Explain the stage 4 response.
Either the Abo or killer T cell reaches the antigen on the surface of the foreign invader.
-->Destruction of invading microbe or neutralizes toxin.
--->Series of events involve Abo, complement, and killer T cells.
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