title: The location of sensoric bronchoconstricting receptors in the upper airways.
abstract: The bronchoconstrictoric influence of allergen and acetylcholine aerosol was tested in 16 boxer dogs. The animals were exposed to these substances through a mask. The aerosol was also administered directly to three restricted areas of the trachea. Both substances induced a strong bronchoconstriction when administered through the mouth. Only the allergen showed a similar strong bronchoconstriction when administered to a restricted area in the upper third of the trachea.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000485:Allergens / Q000008:administration & dosage; D000818:Animals; D001200:Ascaris / Q000276:immunology; D001985:Bronchial Provocation Tests; D001986:Bronchial Spasm / Q000209:etiology; D004285:Dogs; D011950:Receptors, Cholinergic / Q000502:physiology*; D011984:Sensory Receptor Cells / Q000502:physiology*; D014132:Trachea / Q000502:physiology*
chemical_list: D000485:Allergens; D011950:Receptors, Cholinergic; D000109:Acetylcholine