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Case Map Respiration A 70 yr old female patient has recently moved from…

- - - - Fluctuates with breathing,but always eventually equalizes with atmospheric pressures
  - - - Simple squamous epithelium
        
        Type 1 alveolar cells(majority)
      - Scattered cuboidal
        
        Type 2 alveolar cells
        
        Secrete surfactant and antimicrobial proteins
        
        Surfactant is a detergent like substance that coats inner aveoli surface
        
        Prevents alveolar collapse
    - - Surrounded by fine elastic fibers and pulmonary capillaries
      - Alveolar macrophages keep alveolar surfaces sterile
    - - Space occupied by by nonfunctional alveoli
      - Total dead space
        
        sum of anatomical and alveolar dead space
- - - - Solubility
      - Temperature