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The dorsal column nuclear projections to the nucleus ventralis posterior lateralis thalami and the inferior olive in the cat: An autoradiographic study
Author(s) -
Groenewegen H. J.,
Boesten A. J. P.,
Voogd J.
Publication year - 1975
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901620407
Subject(s) - dorsal column nuclei , cuneate nucleus , nucleus , anatomy , biology , thalamus , dorsum , neuroscience
This autoradiographic study demonstrates a topical projection of the dorsal column nuclei to the contralateral nucleus ventralis posterior lateralis thalami and the accessory part of the inferior olive. In contrast to earlier anatomical studies the projections of the gracile nucleus and the internal cuneate nucleus proved to be independent and entirely contralateral. Fibers from the gracile nucleus terminate only in the lateral part of the nucleus ventralis posterior lateralis (VPL 1 ) and from the internal cuneate nucleus only in the medial part of this nucleus (VPL m ). Projections of the gracile nucleus to the contralateral inferior olive are restricted to the caudal one‐third of the medial accessory olive and the ventrolateral part of the dorsal accessory olive. The internal cuneate nucleus is only connected with the dorsomedial part of the rostral two‐thirds of the dorsal accessory olive. Our material does not allow conclusions about projections from the dorsal column nuclei to other thalamic nuclei and about rostrocaudal point to point relationships between the dorsal column nuclei and the thalamus or the inferior olive.