[Formation of extraorganic ovarian nerves during the intrauterine period of human ontogeny].

By methods of histological investigation, plastic and graphic reconstruction, in 267 corpses of human embryos, prefetuses, fetuses and newborns, formation of extra- and intraorganic ovarian nerves has been studied. It has been stated that the neural fibres and trunklets grow into the ovarian anlage in prefetuses of 40-42 mm parietal-coccygeal length. The neural elements reach the ovarian anlage together with the ovarian artery and its branches.

[Development of the seminiferious tubules and rete testis during the prenatal period of human ontogenesis].

The sources of origin and the peculiarities of formation of the seminal ducts and rete testis during the prenatal period of ontogenesis in man were studied. It has been established that the seminal duct sand the ducts of the rete testis form from the cellular cords of the coelomic epithelium and the primordial germ cells which appear simultaneously in the septum of the testis and the primordial germ cells which appear simultaneously in the septum of the testis and central part of its parenchyma in the embryos, 13.0--17.