Keywords
histology, spleen, early postnatal ontogenesis, lymphoid nodes
Abstract
On total sections of the spleen by the 21st day, the area occupied by the white pulp also increases, the absolute number of lymphoid nodules with reproduction centers increases to 31.4 ± 2.1 and the marginal zone of periarterial lymphoid couplings thickens. In the centers of reproduction of lymphoid nodules on an area of 2500 sq. During this period, the number of blasts increases - 15.0 ± 1.1 and average lymphocytes to 16.9± 2.3. On total sections of the spleen, white pulp occupies 49.1± 1.5% of the total area of the histological section. The proportion of lymphoid nodules with breeding centers increases 2.1 times, equal to 34.3 ±1.9 in absolute numbers compared to the control.