Sagittal organisation of the olivocerebellonuclear pathway in the rat. III. Connections with the nucleus dentatus.

Neuroscience Research
C Buisseret-Delmas, P Angaut

Abstract

The organization of olivary afferents and nuclear efferents of the D-zone of the rat cerebellum was studied by means of tracing with wheat-germ agglutinin-coupled peroxidase using tetramethylbenzidine as a chromagen. The tracer was injected iontophoretically within the cerebellar cortex. This allowed us to study both afferent and efferent pathways of the cerebellar lobules concerned with retrograde and anterograde tracing, respectively. Retrograde cellular labelling in the inferior olive was restricted to the principal olive (PO). Anterograde terminal labelling was found only within the various subdivisions of the nucleus lateralis or dentatus (ND). For any one of our small cortical injections there was a corresponding sagittal band of retrogradely labelled cells in the contralateral PO, and a sagittal band of terminal labelling through the ND. Based on both their olivary and nuclear connections, 3 sagittal subzones can be distinguished within the D-zone of the rat. From medial to lateral, we call them D0, D1 and D2. The 3 subzones run through part of the anterior and posterior lobes. D1 and D2 run continuously from their rostral to their caudal extents whereas D0 is discontinuous. It is interrupted through lobule VIc (crus I)....Continue Reading

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Citations

Oct 23, 2010·The Cerebellum·Jan Voogd
Mar 1, 1993·Neuroscience Research·C Buisseret-DelmasP Angaut
Jul 1, 1996·Neuroscience Research·N YatimC Buisseret-Delmas
Jan 1, 1993·Progress in Neurobiology·C Buisseret-Delmas, P Angaut
Feb 24, 2001·The European Journal of Neuroscience·M R PantòF Cicirata
May 18, 2006·The Journal of Comparative Neurology·Luis HerreroRichard Apps

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