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Respiratory tract

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The respiratory tract is the complete set of structures which make up the respiratory system. It can be divided into:

  • conducting portion:
    • oral cavity
    • nasal cavities
    • pharynx
    • larynx
    • trachea
    • bronchi
    • terminal bronchioles
  • respiratory portion:
    • respiratory bronchioles
    • alveolar ducts
    • alveolar sacs
    • alveoli

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