Sex Determination:What differences in Wolffian and Müllerian duct regression are there in the male and female reproductive systems? What do they become? -Wolffian duct: testis cords hollow out to form the seminiferous tubules and the germ cells migrate to the periphery to begin differentiation into sperm – the efferent ducts are part of the mesonepheric kidney and the Wolffian duct connects them to the testes-differentiates into the epididymis and vas deferens-Mullerian duct: differentiates into female external structures (oviducts, uterus, cervix, and upper vagina)-all of the oogonium cells a female will ever have are supplied during fetal developmentHow do the parts of the primitive sex cords differentiate in males and females? -primary sex determination: genetically male or female – gonads (testes/sperm or ovaries/oocyte)-secondary sex determination: external phenotype outside gonads – duct stem and external genitaliaWhat does Müllerian inhibitory substance (hormone) do?
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