[Electron-autoradiographic analysis of projections of somatosensory cortex regions I and II to the posterior ventral nucleus of the thalamus].
To reveal the differences in the nucleus ventralis postero-lateralis (VPL) of the thalamus of the corticofugal fibers originating from the first (S1) and the second (S2) somatosensory areas a combined morphological study was undertaken using autoradiography and electron microscopy of the degenerating terminals. Within the range of VPL distribution of the cortico-fugal fibers of the corresponding zones of two cortical somatosensory regions differed from one another. The terminals of both types of the fibers established synaptic contacts, chiefly with the distal dendrites of the relay VPL cells, and much more rarely with the dendrites of the interneurons of the Golgi II type. No direct convergence of the fibers originating from two somatosensory regions on single VPL elements was observed.
D000818:Animals; D001345:Autoradiography; D001931:Brain Mapping; D002415:Cats; D007930:Leucine / Q000378:metabolism; D008854:Microscopy, Electron; D009434:Neural Pathways; D013003:Somatosensory Cortex / Q000033:anatomy & histology*; D013787:Thalamic Nuclei / Q000033:anatomy & histology*
D007930:Leucine
Elektronno-avtoradiograficheskiĭ analiz proektsii I i II somatosensornykh oblasteĭ kory v zadnee ventral'noe iadro talamusa.