THE DEVELOPMENTAL RELATION AMONG MESONEPHROS, GONAD AND EXTERNAL GENITALIA IN THE FETUS OF GOAT (CAPRA-PRISCA)

The mesonephros, the gonad, the external genitalia and the development al relationships between them were examined on 21 goat fetuses, 29 to 92 days old. Three fetuses were not sexually differentiated, however 1 1 were males and 7 females. The development of the gonad could be divi ded in a not differentiated stage and a gonadal and external genitalia differentiation stage. A close relationship between the fetal gonad a nd the mesonephros was found during the stage of differentiation. The epicenter of this relation is the giant mesonephric nephron, a peculia r structure of mesonephros, from which epithelial cells presumably mig rate into the gonad.