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B6. Respiration (Aerobic and anaerobic respiration (Uses of energy from…

- - - - Larynx
      - Trachea (main tube towards lungs)
      - Bronchi (two main split tubes)
      - Bronchioles (smaller tubes)
      - Alveoli (on end of bronchioles)
    - - Lungs increase in volume, lowers pressure inside
      - Air enters lungs to equalize pressure
    - - Lungs decrease in volume, increase pressure outside
      - Air leaves lungs
    - - Capillary around the outside of the alveoli
        
        Oxygen into the capillary
        
        CO2 out of the capillary
      - Making diffusion easier
        
        Respiratory membrane on inside of alveoli
        
        Has moisturised surface with oxygen dissolved in it
        
        Capillaries are only one cell thick
        
        Alveoli give lungs a large surface area