The ratio of dorsal root ganglion cells to dorsal root axons in sacral segments of the cat

Kyungsoon Chung, Richard E. Coggeshall

    Research output: Contribution to journalArticlepeer-review

    48 Scopus citations

    Abstract

    Processes of dorsal root ganglion cells are depicted as being unbranched until they reach the spinal cord or periphery. This is an important concept because, for example, branching of these processes might be a basis for referred pain. Recently several studies indicate that axons of rat dorsal root ganglion cells branch in or near the ganglion. The present study extends this work by showing that there are approximately 1.4 dorsal root axons for each dorsal root ganglion cell in sacral segments of the adult cat, and these data are interpreted as indicating that many dorsal root axons in this animal also branch. Thus this study provides further evidence to indicate that a revision of our ideas about the organization of primary sensory cells is desirable. In addition, this study provides data to indicate that the numbers of both dorsal root ganglion cells and dorsal root axons differ on the right as compared to the left side of the same segment.

    Original languageEnglish (US)
    Pages (from-to)24-30
    Number of pages7
    JournalJournal of Comparative Neurology
    Volume225
    Issue number1
    DOIs
    StatePublished - May 1 1984

    Keywords

    • cat
    • sensory axons
    • sensory cells

    ASJC Scopus subject areas

    • General Neuroscience

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