Nasal MucosaRespiratory MucosaTracheaMucous MembraneAdenoidsOlfactory MucosaMucociliary ClearanceRespiratory SystemMicroscopy, Electron, ScanningBacterial AdhesionAdministration, IntranasalHaemophilus influenzaeOrgan Culture TechniquesIntestinal MucosaGastric MucosaMouth MucosaTracheal NeoplasmsTracheal DiseasesTracheal StenosisGuinea PigsMuscle, SmoothBronchiLaryngeal MucosaLarynxColonMucusEpitheliumMuscle RelaxationMuscle ContractionIntubation, IntratrachealHistamineBronchoscopyTracheotomyLungEsophagusDuodenumIleumAirway ObstructionTracheitisExocrine GlandsSRS-AIntestine, SmallGastritisBronchial DiseasesMethacholine CompoundsNeurokinin ASubstance PImmunohistochemistryStomachMucinsMetaplasiaStomach UlcerBronchial NeoplasmsIndomethacinLaryngeal Nerves