Vagina Development: Difference between revisions
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Revision as of 07:37, 30 October 2010
Introduction
The embryonic origin of the vagina has been a historically hotly debated issue with several different contributions and origins described.
One description shows the vagina arising by downward growth of Wolffian and Mullerian ducts. The sinovaginal bulbs are the caudal ends of the Wolffian ducts. Vaginal development is also under negative control of androgens.
An earlier understanding was that the upper part of the vagina derived from Müllerian ducts and the lower part from the sinovaginal bulbs (formed by fusion form the vaginal plate) all derived from the urogenital sinus. The terms sinovaginal bulbs and vaginal plate were first coined by Koff in 1933.[1]
Acién's hypothesis - relates to abnormalities and the embryology of the human vagina as deriving from the Wolffian ducts and the Müllerian tubercle.
| Uterus Development Animation | original page
Adult Dimensions
A recent study using magnetic resonance imaging (MRI) has accurately measured the dimensions of the adult vagina.[2]
- "Seventy-seven MRI scans were performed on 28 women before gel application to establish baseline vaginal measurements. Average dimensions were calculated for each woman and for the population. The influence of potential covariates (age, height, weight and parity) on these dimensions was assessed. ...Mean vaginal length from cervix to introitus was 62.7 mm. Vaginal width was largest in the proximal vagina (32.5 mm), decreased as it passed through the pelvic diaphragm (27.8 mm) and smallest at the introitus (26.2 mm)."
References
- ↑ Development of the vagina in the human fetus. Koff AK. Contrib Embryol. 1933 Sep;24(140):59-91. PMID: 12332362
- ↑ Baseline dimensions of the human vagina. Barnhart KT, Izquierdo A, Pretorius ES, Shera DM, Shabbout M, Shaunik A. Hum Reprod. 2006 Jun;21(6):1618-22. Epub 2006 Feb 14. PMID: 16478763
Reviews
<pubmed>20142648</pubmed> <pubmed>16208476</pubmed> <pubmed>15467266</pubmed>
Articles
<pubmed>17532316</pubmed> <pubmed>17070514</pubmed> <pubmed>12740945</pubmed> <pubmed>12449044</pubmed> <pubmed>15086027</pubmed> <pubmed>19598112</pubmed> <pubmed>15821572</pubmed> <pubmed>18391520</pubmed>
Search PubMed
Search Pubmed Oct 2010 "Vagina Embryology" All (3507) Review (251) Free Full Text (228)
Search Pubmed: Vagina Embryology | Vagina Development | vaginal plate development | Mullerian duct
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Cite this page: Hill, M.A. (2024, June 2) Embryology Vagina Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Vagina_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G