Thermal stimulation of the oral mucosa and nasal airway resistance.
A procedure for measuring nasal airway resistance using posterior rhinorheometry is described. Baseline nasal airway resistances +/- 1 S.D. at an airflow of 0.5 L/sec were found to be 1.077 +/- 0.683 cm H2O for inhalation and 1.359 +/- 0.792 cm H2O for exhalation. Application of either cold water (4 to 6 C) or warm water (44 to 52 C) to the oral mucosa significantly increased nasal airway resistance. Application of tepid water (26 to 28 C) did not alter nasal airway resistance significantly.
D000403:Airway Resistance; D006801:Humans; D009061:Mouth Mucosa / Q000502:physiology*; D009666:Nose / Q000502:physiology*; D010812:Physical Stimulation; D011312:Pressure; D012119:Respiration; D012212:Rheology / Q000379:methods; D013696:Temperature