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Respiratory System (larynx (epiglottis (glottic/sphincter mechanism…

- - - - closes tight when swallow to prevent food from entering lungs
- - - - uppermost layer; behind nasal cavity
      - contains adenoids
      - air passes from nasal cavity
    - - center section of pharynx
      - air, food, liquids pass through
    - - lower portion of pharynx
      - air and food passes
- - - - liquid surfectant
      - increase surface tension or collapse
    - - tissue/alveolar epithelium
      - made of squamous cells
      - made of pneumocyte/type 1 cells and type 2/granular pneumocytes
      - made of clean up or type 3/macrophages
        
        pores of kohn
        
        small holes below alveoli, move macrophages
    - - capillary endothelium
        
        contains RBC and blood, carry oxygen