The site and function of the nasal valve
- 5 January 1983
- journal article
- Published by Wiley in The Laryngoscope
- Vol. 93 (1), 49-55
- https://doi.org/10.1288/00005537-198301000-00009
Abstract
Previous observers have suggested that the main site of respiratory airflow resistance is localized to the vestibular region of the nose. This resistive segment of the airway was investigated using a “head‐out” body plethysmograph in subjects with anatomically normal noses (a) untreated, (b) congested and (c) decongested. In all three conditions, 2/3 of the total nasal airflow resistance was found within the bony cavum in the vicinity of the pyriform aperture and about 1/3, in the cartilaginous vestibule. As might be expected, caval resistance changed proportionately with the degree of mucosal congestion; but, more surprisingly, vestibular resistance changed similarly. This was due in part to the observed forward expansion of the anterior ends of the inferior turbinates with congestion. EMG recordings in subjects breathing through both nostrils demonstrated a gradation of inspiratory alar dilator muscle activity with increased minute ventilation and with mucosal congestion, and there was no evidence of inspiratory alar collapse. But with elevated ventilation through one nostril only, or when the alar muscles were paralyzed by lidocaine block of the VIIth nerve, alar collapse occurred. These findings are of importance in the management of the congested but anatomically normal nose and in surgery of the nasal tip.Keywords
This publication has 16 references indexed in Scilit:
- Oronasal distribution of respiratory airflowRespiration Physiology, 1981
- The switching point from nasal to oronasal breathingRespiration Physiology, 1980
- Computer-Aided Rhinometry: A Reseurch Rhinometer for Clinical TrialActa Oto-Laryngologica, 1980
- Nasal Obstruction From Facial PalsyArchives of Otolaryngology (1960), 1977
- Histology and cytochemistry of human skin. XXXVI. The nose and lipsArchives of Dermatology, 1976
- VALVULAR OBSTRUCTION OF THE NASAL AIRWAYPlastic and Reconstructive Surgery, 1975
- Studies on the Structure and Function of the Anterior Section of the Nose by Means of Luminal ImpressionsActa Oto-Laryngologica, 1972
- Physiology of the Nasal ValveJAMA Otolaryngology–Head & Neck Surgery, 1970
- The Structure and Function of the Nasal VestibuleJAMA Otolaryngology–Head & Neck Surgery, 1955
- MUSCLES AND CARTILAGES OF THE NOSE FROM THE STANDPOINT OF A TYPICAL RHINOPLASTYJAMA Otolaryngology–Head & Neck Surgery, 1944