Journal of Applied Physiology Email Content Delivery
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 67: 1171-1178, 1989;
8750-7587/89 $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 Zhou, D.
Right arrow Articles by Bartlett, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Zhou, D.
Right arrow Articles by Bartlett, D., Jr

Journal of Applied Physiology, Vol 67, Issue 3 1171-1178, Copyright © 1989 by American Physiological Society

ARTICLES

Respiratory activities of intralaryngeal branches of the recurrent laryngeal nerve

D. Zhou, Q. Huang, W. M. St John and D. Bartlett Jr
Department of Physiology, Dartmouth Medical School, Hanover, New Hampshire 03756.

To distinguish experimentally between motor nerve activity destined for vocal cord abductor muscles and that bound for muscles that adduct the cords, we recorded efferent activities of intralaryngeal branches of the recurrent laryngeal nerve (RLN) in decerebrate, vagotomized, paralyzed, ventilated cats. Activities of the whole RLN and phrenic nerve were also recorded. Nerve activities were assessed at several steady-state end-tidal O2 and CO2 concentrations. The nerve to the thyroarytenoid (TA) muscle, a vocal cord adductor, was only slightly active under base-line (normocapnic, hyperoxic) conditions but in most cats developed strong activity during expiration in hypocapnia or hypoxia. In severe hypocapnia, phasic expiratory TA activity persisted even during phrenic apnea, indicating continuing activity of the respiratory rhythm generator. The nerve to the posterior cricoarytenoid (PCA) muscle, the vocal cord abductor, was always active in inspiration but often showed expiratory activity as well. This expiratory activity was usually enhanced by hypercapnia and often inhibited by hypoxia. The results are consistent with previous electromyographic findings and emphasize the importance of distinguishing abductor from adductor activity in studies of laryngeal control.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
F. Moreau-Bussiere, N. Samson, M. St-Hilaire, P. Reix, J. R. Lafond, E. Nsegbe, and J.-P. Praud
Laryngeal response to nasal ventilation in nonsedated newborn lambs
J Appl Physiol, June 1, 2007; 102(6): 2149 - 2157.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
I-J. Lu, K.-Z. Lee, and J.-C. Hwang
Capsaicin-induced activation of pulmonary vagal C fibers produces reflex laryngeal closure in the rat
J Appl Physiol, October 1, 2006; 101(4): 1104 - 1112.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
E. F. Bailey and R. F. Fregosi
Modulation of upper airway muscle activities by bronchopulmonary afferents
J Appl Physiol, August 1, 2006; 101(2): 609 - 617.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
I-J. Lu, K.-Z. Lee, J.-T. Lin, and J.-C. Hwang
Capsaicin administration inhibits the abducent branch but excites the thyroarytenoid branch of the recurrent laryngeal nerves in the rat
J Appl Physiol, May 1, 2005; 98(5): 1646 - 1652.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
S. Ryan, W. T. McNicholas, R. G. O'Regan, and P. Nolan
Effect of upper airway negative pressure and lung inflation on laryngeal motor unit activity in rabbit
J Appl Physiol, January 1, 2002; 92(1): 269 - 278.
[Abstract] [Full Text] [PDF]


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