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


     

J Appl Physiol 75: 2157-2161, 1993;
8750-7587/93 $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
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 Dylewska, K.
Right arrow Articles by Widdicombe, J. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Dylewska, K.
Right arrow Articles by Widdicombe, J. G.

Journal of Applied Physiology, Vol 75, Issue 5 2157-2161, Copyright © 1993 by American Physiological Society

ARTICLES

Asymmetric reflex responses of the nasal and tracheal vasculatures of the dog

K. Dylewska, G. Sahin and J. G. Widdicombe
Department of Physiology, St George's Hospital Medical School, London, United Kingdom.

Both sides of the nasal vasculature of the dog in vivo were perfused separately, with measurement of vascular resistance responses to stimulation of various nerves. Stimulation of the central end of a cut superior laryngeal nerve caused an ipsilateral vasodilation (-4.98%) and a contralateral vasoconstriction (+3.96%), the difference being statistically significant (P < 0.01). Stimulation of a glossopharyngeal nerve caused vasodilation on both sides, the ipsilateral (-17.52%) being greater than the contralateral (-6.33%) response (P < 0.05). Mechanical stimulation of the nasal mucosa caused little ipsilateral change (+0.47%) and a weak contralateral vasoconstriction (+3.78%; P < 0.01). Stimulation of the central end of a cervical vagus nerve caused vasodilations on both sides, the ipsilateral (-9.75%) being greater than the contralateral (-5.73%) change (P < 0.05). With bilateral perfusions of the cervical tracheal arteries, stimulation of a superior laryngeal nerve caused vasodilation on both sides, the ipsilateral (-10.1%) being greater than the contralateral (-7.4%) response (P < 0.05). Stimulation of the central end of a vagus nerve caused vasoconstrictions on both the sides, the ipsilateral (+37.4%) being greater than the contralateral (+10.8%) change (P < 0.05). Thus various nervous inputs from the nose, pharynx, larynx, and vagal distribution cause asymmetric vascular responses both in the nose and in the cervical trachea.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
S.-I. Sekizawa, T. Ishikawa, and G. Sant'Ambrogio
Asymmetry in reflex responses of nasal muscles in anesthetized guinea pigs
J Appl Physiol, July 1, 1998; 85(1): 123 - 128.
[Abstract] [Full Text] [PDF]


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