Contralateral projections of cells in the motor trigeminal nucleus of the rat

With horseradish peroxidase and Phaseolus vulgaris lectin as tracers, a direct connection between the jaw closing parts of the ipsi- and contralateral motor trigeminal (Mo5) nuclei of the rat is shown. The contralateral projecting cells in Mo5 were small (18 X 11 microns) ovoid and bipolar. It is sp...

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Bibliographic Details
Published inNeuroscience letters Vol. 113; no. 3; p. 260
Main Authors Ter Horst, G J, Copray, J C, Van Willigen, J D, Liem, R S
Format Journal Article
LanguageEnglish
Published Ireland 08.06.1990
Subjects
Animals
Efferent Pathways - anatomy & histology
Horseradish Peroxidase
Masticatory Muscles - innervation
Masticatory Muscles - physiology
Motor Neurons - cytology
Rats
Rats, Inbred Strains
Trigeminal Nuclei - cytology
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Summary:With horseradish peroxidase and Phaseolus vulgaris lectin as tracers, a direct connection between the jaw closing parts of the ipsi- and contralateral motor trigeminal (Mo5) nuclei of the rat is shown. The contralateral projecting cells in Mo5 were small (18 X 11 microns) ovoid and bipolar. It is speculated that these contralateral projecting cells in Mo5 are interneurons that are involved in the coordination of the bilateral activity of jaw closing motoneurons during orofacial motor behavior.
ISSN:0304-3940
DOI:10.1016/0304-3940(90)90594-Y