External Genital Male Development Movie

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Male external 001 icon.jpg

Male External Genital Development

This looped animation shows the development of external male genitalia from the indifferent external structure, covering the approximate period of week 9 to 12. (Anterior to top, Posterior to bottom)

Note the original cloacal membrane becomes separated into the urogenital membrane and anal membrane (identical to female). The urogenital folds beneath the genital tubercle begin to fuse in the midline. The skin folds either side for the scrotum, which too has a midline fusion, the raphe. The scrotal sac is initially empty and is an attachment site for the gubernaculum, descent of the testes begins generally during week 26 and may take several days.

Failure of this fusion event leads to hypospadias a common male genital abnormality.


Genital Movie Links

Female: Ovary Development Movie - MP4 movie | External Genital Movie - MP4 movie | Internal Genital Movie - MP4 movie | Ovary Development | Uterus Development | Vagina Development | Movies
Male: Testis Development Movie - MP4 movie | External Genital Movie - MP4 movie | Testis Descent Movie - MP4 movie | Penis Development | Testis Development | AMH |Movies


Genital Links: genital | Lecture - Medicine | Lecture - Science | Lecture Movie | Medicine - Practical | primordial germ cell | meiosis | Female | X | ovary | corpus luteum |oocyte | uterus | vagina | reproductive cycles | menstrual cycle | Male | Y | SRY | testis | spermatozoa | ductus deferens | penis | prostate | endocrine gonad‎ | Genital Movies | genital abnormalities | Assisted Reproductive Technology | puberty | Category:Genital
Historic Embryology - Genital 
1901 Urinogenital Tract | 1902 The Uro-Genital System | 1904 Ovary and Testis | 1904 Leydig Cells | 1904 Hymen | 1905 Testis vascular | 1909 Prostate | 1912 Prostate | 1912 Urinogenital Organ Development | 1914 External Genitalia | 1914 Female | 1915 Cowper’s and Bartholin’s Glands | 1920 Wolffian tubules | 1921 Urogenital Development | 1921 External Genital | 1927 Female Foetus 15 cm | 1932 Postnatal Ovary | 1935 Prepuce | 1935 Wolffian Duct | 1942 Sex Cords | 1943 Testes Descent | 1953 Germ Cells | Historic Embryology Papers | Historic Disclaimer


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Cite this page: Hill, M.A. (2019, July 21) Embryology External Genital Male Development Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/External_Genital_Male_Development_Movie

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G