Топографоморфологические особенности развития поджелудочной железы в пренатальном периоде онтогенеза человека

Аннотация

Aim of investigation: to detect the topographic-anatomical relationship of the pancreas in the embry-onic period of human ontogenesis. The study was made on 5 step by step series of the histological sections of human embryos using the microscopic method and the method of plastic reconstruction. The study found that at the end of 5th week of the embryonic period caudally from stomach the laying of pancreas develops. It is located tightly to the laying of duodenum. During this period, when the dorsal pancreas active develops the blood islets a forming, within the mesenchy me which surrounds them, the mesenchymal cordsand fi-brous structures are visible. In the dorsal mesentery the dense structure that is made of mesenchymal cells. It is embryo spleen. In embryosat the end of 6th weekthe dorsal pancreas and ventral pancreas have not grouped each other, but most likely under the influence of the growth of organs that surround them: the liver, stomach, duodenum, and also as a result of growth of these germs the ventral pancreas displays shifts to the left and dorsally, coming toward the dorsal laying of the pancreas.