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Diseases & Immunity, dropped image link - Coggle Diagram

- - - - Skin- Covers most part of body, regenerates if damaged
      - Nose hair: Catch pathogen and dust entering nose and into respiratory tract
    - - Mucus: Made by goblet cells, trap pathogen so it can be easily removed from the body.
      - Stomach acid(HCL): Can kill any pathogen that have been consumed with food.
    - - Phagocytosis: Engulfing and digesting pathogen
      - Produce antibodies: clump pathogen/ stop pathogen from entering cell, opsonizes pathogen, release chemoattractants
        
        Active immunity -- Slow lasting, but long immunity
        
        B cells that produce antibodies produce memory cells so that they could effectively fend off pathogen in the future.
        
        Vaccination
        
        Dead, altered pathogen. (Cann't cause illness because pathogen is dead) Contains specific antigen
        
        Herd immunity: if large enough population is vaccinated it provides protection for entire population. --> Herd immunity has eradicated certain disease, such as smallpox.
        
        Passive immunity -- body doesn't make it's own antibodies, or memory cells (Ready made antibodies from external source)
        
        Mother to infant breast milk
        
        Injected antibodies
      - Disease caused by immune system-- Immune cells attack the body's own cells.
        
        Type 1 diabetes-- Immune system targets and destroys pancreatic cells which make insulin.
  - - - Contact with host: Athletes foot, Salmonella
      - Insect Bites: Malaria, Dengue Fever
    - - Droplets in air: Common cold, Influenza
      - Food or water: Cholera, Typhoid