Corticopontine terminal fibres form small scale clusters and large scale lamellae in the cat

Neuroreport
J G BjaalieP Brodal

Abstract

We investigated whether terminal fibres in the pontine nuclei are arranged in a lamellar pattern like that demonstrated earlier for pontocerebellar neurones. Following tracer injections in visual and parietal cortices and subsequent computer-based 3-D analysis, we found that labelled corticopontine terminal fibres form numerous sharply delimited aggregates of variable shape. Several of the aggregates are cylindroids (diameter 200-300 microns, length 1-3 mm). The aggregates are confined to a lamellar subspace, the position of which depends on the anteroposterior location of the cortical injections. These findings suggest that the cerebroponto-cerebellar system may be organized according to fairly simple, topographical rules. We discuss the implications of our results in relation to the development of corticopontine topographical organization.

References

Feb 1, 1978·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·M M Mesulam
Mar 1, 1992·Neuroscience Research·P Brodal, J G Bjaalie
Oct 1, 1974·Physiological Reviews·G I Allen, N Tsukahara

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Citations

Sep 5, 2006·Experimental Brain Research·Ines Kralj-HansMitchell Glickstein
Mar 16, 2000·Trends in Neurosciences·J G Bjaalie, T B Leergaard
Jun 15, 2001·The Journal of Comparative Neurology·C Schwarz, M Möck
Jun 28, 2006·The Journal of Comparative Neurology·Mercedes PeralesJorge J Prieto
Aug 5, 2014·Neuroscience Research·Takahiro IshikawaShinji Kakei
Oct 7, 2021·Brain Structure & Function·Joan S BaizerSandra F Witelson

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