DESCENDING PROJECTIONS FROM THE SUPERIOR COLLICULUS TO THE RETICULAR-FORMATION AROUND THE MOTOR TRIGEMINAL NUCLEUS AND THE PARVICELLULAR RETICULAR-FORMATION OF THE MEDULLA-OBLONGATA IN THE RAT

被引：45

作者：

YASUI, Y ^{[1
]}

TSUMORI, T ^{[1
]}

ANDO, A ^{[1
]}

DOMOTO, T ^{[1
]}

KAYAHARA, T ^{[1
]}

NAKANO, K ^{[1
]}

机构：

[1] MIE UNIV,FAC MED,DEPT ANAT,DIV 1,TSU,MIE 514,JAPAN

来源：

BRAIN RESEARCH | 1994年 / 656卷 / 02期

关键词：

SUPERIOR COLLICULUS; RETICULAR FORMATION; SUBSTANTIA NIGRA; PHASEOLUS VULGARIS LEUKOAGGLUTININ; WHEAT GERM AGGLUTININ-HORSERADISH PEROXIDASE; RAT;

D O I：

10.1016/0006-8993(94)91489-3

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We observed by the anterograde and retrograde tracing techniques in the rat that the lateral part of the superior colliculus (SC), where the nigrotectal fibers from the dorsolateral part of the substantia nigra pars reticulata (SNr) terminated, sent projection fibers to the reticular region around the motor trigeminal nucleus (RFp) and parvicellular reticular formation (RFp) of the medulla oblongata, where many premotor neurons for the orofacial motor nuclei were known to be distributed. The SC neurons sending their axons to the RFmt and RFp were mainly located in the stratum griseum intermedium, and additionally in the stratum griseum profundum. Our results suggest that neuronal signals conveyed through the nigro-tecto-bulbar pathway to the RFmt and RFp may exert control influences upon oral behavior.

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收藏

页码：420 / 426

页数：7

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