Funicular location of ascending axons of lamina I cells in the cat spinal cord

A. Vania Apkarian*, Richard T. Stevens, Charles J. Hodge

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The laminar distribution of spinal cord neurons projecting suprasegmentally through different funiculi was determined in the cat using horseradish peroxidase (HRP) injections combined with selective spinal cord lesions. The lesions were designed to limit the caudal transport of HRP to either the ventral funiculi or the dorsolateral funiculus. HRP injections in the ventromedial or ventrolateral funiculi resulted in labeling primarily within laminae IV-VIII and a virtual lack of labeling within lamina I. When the dorsolateral funiculus was injected, 20-25% of all labeled cells were located in lamina I, bilaterally. These results demonstrate that the ascending lamina I projections are through the dorsolateral funiculus.

Original languageEnglish (US)
Pages (from-to)160-164
Number of pages5
JournalBrain research
Volume334
Issue number1
DOIs
StatePublished - May 13 1985

Keywords

  • dorsolateral funiculus
  • lamina I
  • spinal cord
  • spinal pathways

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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