Tömböl T, Egedi G, Németh A
1st Department of Anatomy, Semmelweis University, Medical School, Budapest, Hungary.
J Hirnforsch. 1994;35(2):233-52.
Having injected Phaseolus Vulgaris Lectin (PhA-L) iontophoretically to subpretectal (SP) and postero-ventralis (PV) thalamic nuclei, labelled fibers and terminals appeared in nucleus rotundus (Rt). The PhA-L immunostained fibers are divided dichotomically and they develop long terminal sections with large varicosities. In EM preparates PhA-L labelled terminals were observed establishing axo-somatic, axo-dendritic symmetrical synapses. These terminals were stained by GABA immunogold procedure and proved to be GABA-ergic, i.e. the neurons of SP and PV nuclei supply the principal neurons of Rt with GABA positive terminals, which are located on specific, exponent loci of the principal neuron.
