A textbook of obstetrics . ogenital sinus (from Landois and Stirling). The testicle is distinguishable from the fetal ovary about theeighth week. The cells which in the female form ova, in themale subdivide and give origin to tin- spermatozoa, wink- thecells which correspond to the lining cells of the female egg-tubesdevelop the lining cells of the seminiferous tubules. Thesecanals maybe detected m the human embryo often weeks; theybranch, and during the third month are collected into groups,indicating the lobular subdivision of the adult testis. The genital cordis a cylindrical mass in which,


A textbook of obstetrics . ogenital sinus (from Landois and Stirling). The testicle is distinguishable from the fetal ovary about theeighth week. The cells which in the female form ova, in themale subdivide and give origin to tin- spermatozoa, wink- thecells which correspond to the lining cells of the female egg-tubesdevelop the lining cells of the seminiferous tubules. Thesecanals maybe detected m the human embryo often weeks; theybranch, and during the third month are collected into groups,indicating the lobular subdivision of the adult testis. The genital cordis a cylindrical mass in which, in both sexes,the ducts of Mullet- .and Wolff become imbedded near the uro-genital sinus. The four ducts (two from each side) are at first THE FEMALE SEXUAL ORGANS. 41 separate. The Mullerian ducts coalesce at their lower ends andin the female enlarge to form the vagina and the posterior por-tion of the uterus ; in the male the lower fused portions of Mul-lerian ducts remain as the prostatic vesicle, or uterus Fig- 32-—Diagrammatic outline of the Wolffian bodies and their relation tothe ducts of Miiller and the reproductive glands : ot, Seat of origin of ovary or testes ;7v, Wolffian body; w, Wolffian duct; m, m, duct of Miiller; gc, genital cord;tig) urogenital sinus ; ?, rectum ; cf, cloaca (from Allen Thompson). Fimbria. Urachus. Jar qphoroft. Oviduct.


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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics