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  • Title: [Localization of sources of thalamic inputs into the sensomotor area of the cerebral cortex of the rabbit using the technic of retrograde axonal transport of horseradish peroxidase].
    Author: Tarasova LIu, Ezrokhi VL, Mats VN.
    Journal: Neirofiziologiia; 1987; 19(1):87-94. PubMed ID: 3574555.
    Abstract:
    A horseradish peroxidase study has shown that the rabbit sensorimotor cortex received afferent fibres from the neurons, located in specific, nonspecific and associative thalamic nuclei. The location, form and size of the somata of relay cells were analyzed in these nuclei. The total number of cells of the origin of thalamo-sensorimotor-cortical fibres was calculated and the coordinates of the loci with maximal density were determined. Among the relay cells the most abundant ones appeared to be multipolar neurons (12-20 micron in size) and stellate cells (10-15 micron). Among the specific nuclei most of afferent fibres originated from n. ventralis lateralis, n. ventralis anterior and n. anterior ventralis; a comparable number of fibres originated from n. medialis dorsalis and n. paracentralis that had much more labelled cells than other associative and nonspecific nuclei, respectively. It is supposed that the afferentation from many thalamic nuclei is essential for the sensorimotor cortex to participate in thalamocortical interactions.
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