Propriospinal fibers in the white matter of the cat sacral spinal cord

Kyungsoon Chung, Richard E. Coggeshall

Research output: Contribution to journalArticle

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Abstract

The propriospinal system, which consists of those neurons completely contained within the spinal cord, is important because it underlies much spinal behavior. To provide quantitative data on this system, the present study determines numbers of axons in the isolated S2 cat spinal cord and compares these figures with the normal. The conclusion is that 60% of the fibers in the spinal cord at this location are propriospinal. Findings of particular interest are that the great majority of unmyelinated propriospinal axons are found in the dorsal part of the lateral funiculus, and that there are large numbers of descending myelinated fibers in the dorsal funiculi. These data will serve as a basis for evaluating axon numbers that follow various experimental regimens purporting to result in neural sprouting.

Original languageEnglish (US)
Pages (from-to)612-617
Number of pages6
JournalJournal of Comparative Neurology
Volume269
Issue number4
DOIs
StatePublished - Mar 22 1988

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Keywords

  • isolated spinal cord
  • numbers of axons
  • propriospinal axons

ASJC Scopus subject areas

  • Neuroscience(all)

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