title: [Study of intracortical connections between groups of neurons in the somatosensory region of the cortex in the rat using the technic of retrograde axonal transport of horseradish peroxidase].
abstract: Intercortical connections between different groups of neurons, the so-called "barrels" located in the somatic sensory cortex of the rat brain were identified by the retrograde horseradish transport technique. It is shown that HRP-labelled cells were found at a distance up to 400 microns from the place of injection. 90% of them are pyramidal neurons located mainly in laminae V and III of the cortex. The number of intercortical connections in labelled neurons was 1.6 times as high as that of thalamocortical ones. It is supposed that interaction between neurons of neighbouring groups is realized by the pyramidal cells of laminae V and III.
mesh_terms: D000818:Animals; D001931:Brain Mapping; D005145:Face; D006197:Hair; D009434:Neural Pathways / Q000033:anatomy & histology; D051381:Rats; D012679:Sense Organs / Q000294:innervation; D013003:Somatosensory Cortex / Q000033:anatomy & histology*
vernacular_title: Izuchenie vnutrikorkovykh sviazeĭ mezhdu gruppami neĭronov v somatosensornoĭ oblasti kory mozga krysy s pomoshch'iu metoda retrogradnogo aksonnogo transporta peroksidazy khrena.