title: The effect of changes in bronchial calibre on upper airway calibre.
mesh_terms: D000336:Aerosols; D000403:Airway Resistance; D000818:Animals; D001980:Bronchi / Q000187:drug effects / Q000502:physiology*; D002415:Cats; D006632:Histamine / Q000494:pharmacology; D007545:Isoproterenol / Q000494:pharmacology; D007823:Laryngeal Nerves / Q000502:physiology*; D007830:Larynx / Q000187:drug effects; D009046:Motor Neurons / Q000502:physiology; D012123:Pulmonary Ventilation; D014628:Vagotomy; D014630:Vagus Nerve / Q000502:physiology
chemical_list: D000336:Aerosols; D006632:Histamine; D007545:Isoproterenol