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Group 4 - Immunity, Matures in thymus, mainly responsible for cell…

- - - - Plasma Cell
        
        Produces immunoglobulins, which are proteins that serve as antibodies in response to antigens
      - B-Memory Cell
        
        Retains memory of antigen and duplicates itself in clonal selection with memory of the antigen
  - - - T-Suppressor Cell
        
        Carries CD8 cell receptor and suppresses function of B Cell
      - T- Cytotoxic Cell
        
        Carries CD8 receptor, acts as surveillance and directly attacks
      - T-helper cell
        
        Enhances antibody response
      - T-Memory Cell
        
        Retains memory of antigen
- - - - immune complex type hypersensitivity
        
        marked by formation of immune complexes between microorganisms/antigens in circulating blood
    - - cell mediated type hypersensitivity
        
        has cell-mediated immune response; not humoral
    - - cytotoxic type hypersensitivity
        
        antibody combines with an antigen that is bound to the surface of tissue cells (RBC usually)
    - - multiple allergies more likely to also have allergic reaction to drugs
    - - anaphylactic type hypersensitivity
        
        occurs immediately after exposure or previously encountered allergen
- - - - Naturally
        
        Antibodies from a mother passed through the placenta to the developing fetus.
      - Acquired
        
        Injecting a person with antibodies against a microorganism
  - - - Naturally
        
        When a pathogenic microorganism causes disease
        
        Protection against further attack by the microorganism is conferred to the individual if the body recovers from the disease
      - Acquired/Artificial
        
        Immunization
        
        Person is injected with altered pathogenic microorganisms
        
        Altered microorganism cannot produce infection but can act as antigen, (called a Vaccine)
- - - - Differs from inflammatory response b/c it has the capacity for memory /responds more quickly to a foreign substance if encountered again
  - - - Disease can occur when immune response identifies components of self, doesn’t recognize, or overreacts to antigens