Abstract：
:Nerve cell bodies located within the white matter of the dorsal funiculus (DF neurons) have been previously observed but not described in detail. The present study examines the morphology, ontogeny, and projection of DF neurons utilizing Fluoro-Gold as a retrograde tracer, alone, and in combination with tritiated thymidine autoradiography in the spinal cord of the rat. DF neurons were consistently labelled in spinal segments T13 through L2 following injections of Fluoro-Gold into the cerebellum. The cell bodies of DF neurons were small to medium in size, fusiform to multipolar in shape, and were located on the side ipsilateral to the injection site. Cell counts revealed approximately five labelled cells per millimeter along the longitudinal axis. An examination of neurogenesis using tritiated thymidine combined with Fluoro-Gold showed that DF neurons have relatively late birthdates as do other spinocerebellar neurons of the dorsal horn. Retrograde axon tracing studies in the spinal cord using Fluoro-Gold showed that DF neurons project rostrally via the ipsilateral lateral funiculus. The significance of the presence of nerve cells in the dorsal funiculus is unclear, but judging from their location, ontogeny, and projection, DF neurons are probably derived from the same pool of neurons as those in the Nucleus dorsalis.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Beal JA,Knight DS,Nandi KNdoi
10.1007/BF00228128subject
Has Abstractpub_date
1990-01-01 00:00:00pages
372-6issue
2eissn
0014-4819issn
1432-1106journal_volume
81pub_type
杂志文章abstract：:Modern tools in technological environments are often characterized by a spatial separation of hand actions (operating a remote control) and their intended action effects (displayed movements of an unmanned vehicle, a robot, or an avatar on a screen). Often non-corresponding proximal and distal movement effects put hig...
journal_title：Experimental brain research
pub_type： 杂志文章
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pub_type： 杂志文章,评审
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更新日期：1998-11-01 00:00:00
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更新日期：1982-01-01 00:00:00
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