EM Golgi study on neurons of ectostriatum centrale in telencephalon of one-day-old chicken's brains.

In Golgi impregnated ectostriatum centrale of telencephalon of one-day-old chicken two types of neuron: projection neuron and interneuron with large axonal field and varicose axonal preterminals and terminals, were identified and examined in EM preparates. In the serial EM sections the morphological features of the two neurons types were observed. The projection neuron is characterized by the few axo-somatic synapses on the cell membrane, which are of symmetrical type. The INs, however, have numerous axo-somatic synapses on cell membrane both of symmetrical and asymmetrical types. Also the axonterminals were analysed.