File:Keibel Mall 2 645.jpg

From Embryology

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Fig. 645 a and b. External genitalia of a female embryo of 27.2 vertex-breech length and 21.3 mm in greatest head circumference

X 1,5 The phallus is enclosed by two genital swellings (labia majora). Its shorter oral surface is lost in the mons Veneris, the longer anal surface fading out into the posterior commissure of the labia majora. The summit of the phallus is occupied by the slightly projecting glans; a sulcus coronarius glandia cannot be seen. Anal from the glans is the cleft-like ostium urogenitale, that leads in its oral two-thirds into a shallow groove, the urethral groove, and in its anal third into the sinus urogenitalis. Into this sinus the hymen fold projects, but it does not reach the margin of the ostium urogenitale.

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Felix W. The development of the urinogenital organs. In Keibel F. and Mall FP. Manual of Human Embryology II. (1912) J. B. Lippincott Company, Philadelphia. pp 752-979.

XIX Development of the Urinogenital Organs: Excretory Glands and their Ducts | Reproductive Glands and their Duct | Urogenital Union | External Genitalia | Figures | Literature
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Cite this page: Hill, M.A. (2024, April 25) Embryology Keibel Mall 2 645.jpg. Retrieved from

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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