Sacral spinal cord neurons responsive to bladder pelvic and perineal inputs in cats

Erin M. Coonan, John W. Downie, Huan Ji Du

Résultat de recherche: Articleexamen par les pairs

14 Citations (Scopus)

Résumé

In chloralose-anesthetized or decerebrate male cats, 70% of 73 sacral spinal cord neurons activated from the bladder branch of the pelvic nerve also received excitatory inputs from urethra and/or perineal cutaneous nerves (sensory pudendal in 55% and superficial perineal in 84% of neurons). Only 29% of these neurons were excited by the hindlimb skin and muscle nerves tested. The pelvic nerve-responsive neurons received monosynaptic urethral/perineal input in 25% of cases and required temporal summation of this input in 47% of cases. Of 211 neurons responding to superficial perineal nerve stimulation, 101 were not excited by the other nerves tested. Neurons activated by superficial perineal nerve stimulation were found predominantly in S2. It is likely that the superficial perineal nerve represents an important pathway whereby perineal stimulation influences bladder function.

Langue d'origineEnglish
Pages (de-à)137-140
Nombre de pages4
JournalNeuroscience Letters
Volume260
Numéro de publication2
DOI
Statut de publicationPublished - janv. 29 1999

Note bibliographique

Funding Information:
This work was supported by the Medical Research Council of Canada (MT-13486).

ASJC Scopus Subject Areas

  • General Neuroscience

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