Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

Personal portfolio

MORPHOLOGICAL FEATURES OF BAIKAL SEAL SPLEEN IN DIFFERENT AGES

LamazhapovaG.P. 1 ZhamsaranovaS.D. 1 GrigorenkoD.E. 2
1 East Siberian State University of Technology and Management
2 Research Institute of Human Morphology of the Russian Academy of Medical Sciences
The histomorphologicalfeatures of the structural organization of the spleen of Baikal seal were studied. Investigation of morphology and micro-topography of Baikal seal spleen showed that the spleen has a typical mammalian structural organization. The features of organ development in the postnatal development were established. There number oflymphoid nodules with the centers of reproduction. In adult animals, compared to young, clearly revealed signs of age involution of lymphoid tissue and organ in general: content of connective tissue sharply increases and vessels scleroses. There is a tendency to increase in the content of the mature forms of lymphocytes in the white pulp of spleen by puberty compared with the young animals. At the same time in the spleens of young and mature animals intensity of cell destruction is constant, but the activity of macrophage cells in breeding centers and innodules mantles isslightly reduced. Features of cytoarchitectonic of spleen, associated with compensatory gain and with predominant function of humoral immunity in Baikal seal, apparently explain the terms of wildlife habitat.