Trigone Development Movie

Embryology - 19 Apr 2024        Expand to Translate
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<html5media height="380" width="500">File:Trigone_001.mp4</html5media> Click Here to play on mobile device

Development of the Trigone Region of the Urinary Bladder The dorsal bladder region bounded by the 2 ureters and the urethra form the region known as the trigone. The classical embryology description of the origin of this region was from the mesonephric duct (Wolffian duct), as shown in this animation. More recent mouse studies suggest that this bladder region is endodermal and not mesodermal in origin. Using a similar mouse model, this trigone embryonic region appears to contain most of the bladder progenitor cells. Any mesonephric duct (Wolffian duct) located in the mouse trigone region appears to be developmentally lost by apoptosis. In contrast, the prostatic central zone, seminal vesicle, and ejaculatory ducts all originate from the mesonephric duct (Wolffian duct). This simple animation shows early renal system development associated with the urinary bladder. dorsal view (from behind) showing the mesonephric ducts initially attached to the bladder Trigone Links: MP4 movie | Bladder Development | Renal Development

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Cite this page: Hill, M.A. (2024, April 19) Embryology Trigone Development Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Trigone_Development_Movie

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