EFFECTS OF LOCAL NERVE COOLING ON CONDUCTION IN VAGAL FIBERS SHED LIGHT UPON RESPIRATORY REFLEXES IN THE RABBIT

WR PATBERG*, A NIJMEIJER, A VERSPRILLE, JP ZOCK, WG ZIJLSTRA, J.K. Schut

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

1 Citaat (Scopus)

Samenvatting

In ten vagus nerves the effect of local cooling on the compound action potential was studied in the temperature range of 34 to 0-degrees-C in spontaneously breathing, anaesthetized rabbits. The mean temperature at which the myelinated (A) fibres were completely blocked, was 10.2 +/- 2.4-degrees-C (mean +/- S.D.). In nine nerves, local vagus cooling to 0-degrees-C failed to block all non-myelinated (C) fibres. In one nerve, total blocking occurred at 2.0-degrees-C. We conclude that in the rabbit, the earlier found increase in tonic activity of the diaphragm following lung inflation or deflation during bilateral local vagus cooling to a temperature between 8 and 0-degrees-C is due to afferent impulses in vagal C fibres.

Originele taal-2English
Pagina's (van-tot)280-282
Aantal pagina's3
TijdschriftPflugers archiv-European journal of physiology
Volume421
Nummer van het tijdschrift2-3
StatusPublished - jun-1992

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