Internal urethral orifice
{{No footnotes|article|date=May 2015}}
{{Infobox anatomy
| Name = Internal urethral orifice
| Latin = ostium urethrae internum
| Image = Illu bladder.jpg
| Caption = Male urinary bladder
| Image2 = Gray1140.png
| Caption2 = The interior of bladder.
| System =
}}
The internal urethral orifice is the opening of the urinary bladder into the urethra.{{Cite web |title=orifice interne de l'urèthre l.m. - Dictionnaire médical de l'Académie de Médecine |url=https://www.academie-medecine.fr/le-dictionnaire/index.php?q=orifice+interne+de+l%27ur%C3%A8thre+l.m. |access-date=2024-06-01 |website=www.academie-medecine.fr}}
Anatomy
It is usually somewhat crescent-shaped.{{Citation needed|date=June 2024}}
= Relations =
It is formed by the neck of the urinary bladder. It opens at the apex/inferior angle of the trigone of the bladder, some 2-3 cm anteromedial to either ureteral orifice.
The mucous membrane immediately posterior to it presents a slight elevation in males - the uvula vesicae - caused by the middle lobe of the prostate.{{Citation needed|date=June 2024}}
See also
References
{{Gray's}}
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External links
- {{SUNYAnatomyLabs|44|06|01|06}} - "The Male Pelvis: The Urethra"
{{Male reproductive system}}
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