[Qualitative-quantitative analysis of changes in rat caudate nucleus neurons during postnatal ontogenesis].

Changes of the neurons of the caudate nucleus were analyzed in rats of different age (newborn, 7-, 14-, and 30-day-old) by qualitative and quantitative methods. Complication of the structural components of the nerve cells during the early postnatal ontogenesis was shown. The process of the neuron maturation proved to be most intensive during two postnatal weeks and was practically complete by the 30th day of the postnatal period. The results suggest that at this period of ontogenesis the caudate nucleus takes part in the integral activity of the brain.