| Abstract: | A study was made of the formation of catecholaminergic system in the medial basal hypothalamus of Wistar rat fetuses using histofluorescent method modified by de la Torre. In the periventricular region of 16-day fetuses the cells with green fluorescence characteristic for catecholamines were found. In 18-day fetuses catecholaminergic cells were found in paraventricular, arcuate and dorsomedial hypothalamic nuclei. In all the nuclei studied the number of catecholaminergic fibers and terminals of various size is greatly increased. The data obtained suggest that medial basal hypothalamus of 18-day fetuses has a complex catecholaminergic system. |
