#respiratory_tract__respiratorytract  the passages through which air enters and leaves the body
  supertype:  tract  a system of body parts that together serve some particular purpose
  subtype:  lower_respiratory_tract  upper_respiratory_tract
  part of:  respiratory_system__respiratorysystem__systema_respiratorium__systemarespiratorium  the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
     part of:  body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

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