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Immune System (Types of Leukocytes (T and B cell Roles (both: recognize…

- - - - Lymphocytes (20-30%)
        
        arise in lymph nodes and vary in size
        
        B Lymphocytes--> produce antibodies/ immunoglobulins that bind to foreign/ abnormal proteins
        
        T Lymphocytes--> attack particular types of cells/ viruses
        
        Natural Killer --> recognize foreign cells that don't have correct membrane glycoproteins
      - Monocytes (2-8%)
        
        large, wander & eat debris, foreign pathogens, worn out red blood cells as well as other cells. Release defensins and chemotactic chemicals to attract other types of white blood cells to an infection
  - - - Neutrophils (50-70%)
        
        respond fast to infection, eat bacteria, contain lysozyme
      - Eosinophils (2-4%)
        
        contains antihistamine molecules, reduce inflammation caused by basophils and mast cells, attack parasites, react to things that cause allergies
      - Basophils (<1%)
        
        contain histamines, increase inflammation and contain heparin to obstruct blood clotting.
- - - - Most Common: Severe combined immunodeficiency (SCID)/ "bubble boy diesease"
- - - - white blood cells eat pathogens or engender histaminic response to wash away pathogens.
  - - - Barrier Defense: Skin, oral cavity, stomach, mucosal surfaces, normal microfloral
- - - - helper T cells tells shape to B cell inorder for it to produce more antibodies-->
      - helper t cell activates macrophages to kill more inside the humers of our body
    - - activates killer T cells to kill cell infected by the virus