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Immune System: Adrian Lopez, Period 6, Pathogens=any organism that can…

- - - - B cells
        
        secretes antibodies which indirectly lead to destruction of foreign material
        
        20-30% of Lymphocytes
      - T cells
        
        cause direct destruction of virus invaded/mutated cells
        
        70-80% of Lymphocytes
      - defend body against viruses/cancer cells
    - - engulf smaller particles
    - - engulf larger particles
      - Macrophages
        
        remove foreign particles from Lymph
  - - - kill pathogens and have a highly acidic environment
    - - lymphocyte that defends body against viruses/cancer cells
    - - tissue response to pathogen
    - - 1st line of defense, skin, mucous membranes
    - - removes foreign particles from lymph
    - - resistant to diseases that affect other species
    - - offers powerful protection against infection, iron reduced
  - - - released by infected
    - - can turn into either T or B cells
      - white blood cell
    - - molecules that signal cells, start immune response through communication
    - - molecules that can trigger an immune response
    - - Through use of B cells, Helper T cells, and Plasma cells, produces antibodies against specific antigen
      - deals more with B cells
    - - Through use of T cells, Cytotoxic T cells, Memory T cells, Cytokines, and MHC, T cells latch onto the antigens and initiate reactions that lead to its destruction
      - deals more with T cells
  - - - immune system manufactures antibodies against some of its own antigens
      - examples:(AIDS/HIV, Diabetes l, etc.)
- - - - removes bacteria/cell debris before lymph returned to blood
    - - made in bone marrow and thymus
    - - Tissues=(L.cytes,macrophages) Organs=(L.nodes,thymus,spleen)
    - - secretes thymosin which regulates T cell development
    - - fluid carried by Lymphatic vessels
    - - filters/removes damaged blood and bacteria
    - - collect/carry away excess fluid from lacteals and interstitial spaces
    - - made of 3 mases of lymphoid tissue around openings of mouth and throat
    - - site of Blood Cells and immature L.cytes and mature B cells