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Patterns of corticothalamic terminations following injection of Phaseolus vulgaris leucoagglutinin (PHA-L) in the sensorimotor cortex of the rat.

Abstract：

:The morphology and spatial distribution of terminals emitted by corticothalamic axons originating from the rat motor cortex (as defined by intracortical microstimulations) were studied using Phaseolus vulgaris leucoagglutinin (PHA-L) as an anterograde tracer. After PHA-L injection in the face, forelimb or hindlimb motor cortical areas, small and densely packed boutons (about 1 micron in diameter), en passant and terminaux, were seen in the ventrolateral nucleus of the thalamus and, more sparsely, in the reticular nucleus, the nucleus ventrobasalis and the posterior nucleus of the thalamus. A separate projection with giant boutons (5-10 microns in diameter), en passant and terminaux, terminated in the posterior nucleus of the thalamus exclusively. Giant boutons originated from corticothalamic axons distinct from those providing small boutons. The corticothalamic projection originating from the motor cortex has basic organizational properties comparable to previous data obtained in the auditory and somatosensory corticothalamic projection systems.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Rouiller EM,Liang FY,Moret V,Wiesendanger M

doi

10.1016/0304-3940(91)90139-k

subject

Has Abstract

pub_date

1991-04-15 00:00:00

pages

93-7

issue

1

eissn

0304-3940

issn

1872-7972

pii

0304-3940(91)90139-K

journal_volume

125

pub_type

杂志文章

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