Oct 8, 1989

Anatomical mapping of the cerebellar nucleocortical projections in the rat: a retrograde labeling study

The Journal of Comparative Neurology
C Buisseret-Delmas, P Angaut


An analysis of the cerebellar nucleocortical projections was made by means of retrograde cellular labeling with wheat germ agglutinin-horseradish peroxidase conjugate. Each of the main nuclear subregions appears to give rise to nucleocortical projections. The cortical distribution of the projections is referred to here in term of sagittal zones. Zones A, B, and C conform to the recent description in the rat (Buisseret-Delmas, '88a,b) on the basis of their olivocortical and corticonuclear projections. A corresponding description of zone D is given here. According to their distribution, three types of nucleocortical projections have been distinguished: 1) ipsilateral, reciprocal; 2) nonreciprocal; and 3) contralateral, symmetrical to the corticonuclear afferent. Reciprocal projections are strictly arranged in the sagittal direction, with the following zonal distribution. Zone A is subdivided into two subzones. Medial A zone receives its nuclear afferents from the medial aspect of the nucleus medialis (NM). The lateral A zone of the anterior lobe and lobule VI and that of the posterior lobe receive their reciprocal nuclear afferents from the ventrolateral NM and the dorsolateral protuberance, respectively. Zone B does not seem to ...Continue Reading

Mentioned in this Paper

Axonal Transport
Projections and Predictions
Wheat Germ Agglutinin Isolectin 2
August Rats
Cell Nucleus
Structure of Cortex of Kidney
Cortical Cell Layer of the Cerebellum

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