Embryology of the Female Genital Tract

  • Tim Parmley

Abstract

The fertilized ovum reaches the uterine cavity in about 4 days as a morula of 12 to 16 cells. After developing a blastocoele and losing the zona pellucida, it implants on approximately the sixth day after conception. By the eighth day, the blastocyst consists of a chorionic membrane containing within it a bilaminar embryonic disk, separating the amniotic and yolk sac cavities. By the 11th or 12th day, the trophoblastic portion of the chorionic membrane shows clear-cut differentiation into cytotrophoblast, intermediate trophoblast, and syncytiotrophoblast.7

Keywords

Primordial Germ Cell External Genitalia Urogenital Sinus Embryonic Life Coelomic Cavity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer Science+Business Media New York 1987

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  • Tim Parmley

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