Ipsilaterally projecting rubrospinal neurons in adult and developing opossums

Xiao-Ming Xu, G. F. Martin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have combined injections of Fast Blue with lesions of the rubrospinal tract rostral and contralateral to them to determine if an ipsilateral rubrospinal projection exists in adult or developing opossums and, if so, to characterize the neurons giving rise to it. Although the results indicate that some rubral neurons project ipsilaterally, they are very few in number. Using quantitative and image analysis techniques, we have shown that 0.6% of the rubral neurons that project to the lumbar cord in adult opossums do so ipsilaterally and that such neurons are comparable in location and size to those that project contralaterally. Similar results were obtained in developing opossums. Our results are discussed in light of rubrospinal development and ongoing experiments related to rubrospinal plasticity.

Original languageEnglish (US)
Pages (from-to)538-547
Number of pages10
JournalAnatomical Record
Volume231
Issue number4
StatePublished - 1991
Externally publishedYes

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Opossums
opossums
neurons
Neurons
lesions (animal)
quantitative analysis
Spinal Cord
image analysis
injection
Injections

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Anatomy

Cite this

Ipsilaterally projecting rubrospinal neurons in adult and developing opossums. / Xu, Xiao-Ming; Martin, G. F.

In: Anatomical Record, Vol. 231, No. 4, 1991, p. 538-547.

Research output: Contribution to journalArticle

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