#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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