PECULIARY ASPECTS ABOUT DEVELOPMENT OF THYMUS IN PIGS

Ciência Rural

Mariana Sincai¹  Adrian Marcu¹ 

[1] ,Faculty of Veterinary Medicine Department of Cell Biology, Histology, Embriology Timisoara,România

关键词: thymus;    reticuloepithelial cells;    thymic corpuscles;    myoid cells;    timo;    suínos;    células reticuloepiteliais;    corpúsculos tímicos;    células mióides;   

DOI  :  10.1590/S0103-84781994000100024

来源: SciELO

【 摘 要 】

SUMMARY The morphometabolical development of the thymus has been studied in the pre and postnatal ontogenesis in pigs. The studies pointed that the thymus is organized early in the prenatal period, at about two months of pregnancy. The histochemical investigations pointed out an intense secretory activity for the reticulo ephitelial cells and for the thymic corpuscles. The histological investigations in prenatal period revealed a massive presence of thymic corpuscles and the existence of some peculiar cellsmyoid cells, whose number rises parallel to the development of the organ. At the growing age it is certain that the thymus does not experience an entire involution; part ofthe functions are maintained in some secretory and hematopoetical insulary cells.

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