Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1975 Aug 29;359(1-2):171-6.
doi: 10.1007/BF00581286.

Preganglionic C-fibres: a major component of the sacral autonomic outflow to the colon of the cat

W C de Groat, J Krier

Preganglionic C-fibres: a major component of the sacral autonomic outflow to the colon of the cat

W C de Groat et al. Pflugers Arch. .

Abstract

The sacral preganglionic pathways to the colon and urinary bladder of the cat were studied with electrophysiological techniques. Peak conduction velocities in preganglionic fibres to the colon ranged from 0.5 to 1.4 m/sec, whereas maximum velocities in the bladder pathway were between 8 to 10 m/sec. Thresholds for electrical stimulation of preganglionic axons to the colon were 7 to 10 times higher than thresholds for bladder efferents. It is concluded that the sacral parasympathetic inputs to the colon and bladder are composed, respectively, of non-myelinated and myelinated fibres.

PubMed Disclaimer

References

    1. Physiol Rev. 1962 Apr;42:297-334 - PubMed
    1. J Neurophysiol. 1968 May;31(3):396-409 - PubMed
    1. J Pharmacol Exp Ther. 1970 Apr;172(2):384-96 - PubMed
    1. Brain Res. 1974 Dec 20;82(1):163-7 - PubMed
    1. J Physiol. 1968 Jun;196(3):563-77 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources