Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 57: 651-657, 1984;
8750-7587/84 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rodenstein, D. O.
Right arrow Articles by Stanescu, D. C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rodenstein, D. O.
Right arrow Articles by Stanescu, D. C.

Journal of Applied Physiology, Vol 57, Issue 3 651-657, Copyright © 1984 by American Physiological Society

ARTICLES

Soft palate and oronasal breathing in humans

D. O. Rodenstein and D. C. Stanescu

In 20 naive patients without respiratory impairment, we investigated the ability of the soft palate to direct airflow during breathing. Patients were connected to a spirometer, without noseclip. No instructions were given on the breathing route. During quiet respiration, 15 patients breathed solely through the nose, despite an open mouth. During forced vital capacity (FVC) maneuvers, 19 patients expired exclusively through the mouth. When specifically asked to breathe quietly through the mouth, pure nasal breathing was no longer observed. Tidal volume (VT) or FVC were comparable when patients were asked to breathe through the mouth, with or without noseclip: 0.67 +/- 0.46 vs. 0.60 +/- 0.21 liter for VT (mean +/- SD); 4.05 +/- 0.65 vs. 4.18 +/- 0.70 liters for FVC. In eight separate healthy volunteers, the soft palate was shown by fluoroscopy to close the oropharyngeal isthmus during quiet breathing (resulting in pure nasal breathing) and to close the nasopharynx during FVC efforts (resulting in mouth breathing). During oronasal breathing, the soft palate lay in between the tongue and the posterior pharyngeal wall. These data suggest that when both mouth and nose are open, the soft palate is responsible for the partitioning of oronasal flow.


This article has been cited by other articles:


Home page
 Chronic Respiratory DiseaseHome page
C Newall, T M McCauley, J Shakespeare, and B G Cooper
Is it necessary to use a noseclip in the performance of spirometry using a wedge bellows device?
Chronic Respiratory Disease, February 1, 2007; 4(1): 53 - 57.
[Abstract] [PDF]

Home page
 Eur Respir JHome page
M.F. Fitzpatrick, H. McLean, A.M. Urton, A. Tan, D. O'Donnell, and H.S. Driver
Effect of nasal or oral breathing route on upper airway resistance during sleep
Eur. Respir. J., November 1, 2003; 22(5): 827 - 832.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
M. F. Fitzpatrick, H. S. Driver, N. Chatha, N. Voduc, and A. M. Girard
Partitioning of inhaled ventilation between the nasal and oral routes during sleep in normal subjects
J Appl Physiol, March 1, 2003; 94(3): 883 - 890.
[Abstract] [Full Text] [PDF]

Home page
 Journal of the American Dental AssociationHome page
P. T. GEORGE
Selecting sleep-disordered-breathing appliances: Biomechanical considerations
J Am Dent Assoc, March 1, 2001; 132(3): 339 - 347.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
J. S. Williams, P. L. Janssen, D. D. Fuller, and R. F. Fregosi
Influence of posture and breathing route on neural drive to upper airway dilator muscles during exercise
J Appl Physiol, August 1, 2000; 89(2): 590 - 598.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online