Combining Embryology, Anatomy, and Congenital Malformations in Teaching Reproductive Development to Medical Students by Kristen Farraj, Michelle Annabi, Melinda Danowitz and Nikos Solounias* in PRM
The evolutionary history of the male and female reproductive tracts is reflected in the human embryology and adult anatomy. The sexually indifferent gonad consists of primary and secondary sex cords. The primary cords proliferate in the medulla and the secondary cords regress in the male gonad, forming a testis, whereas the secondary sex cords proliferate from the cortex of the female gonad, forming an ovary. The persistence of both primary and secondary sex cords in primitive vertebrates allows for the rare phenomenon of functional hermaphroditism, where the gonad can function as a testis or ovary.
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