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Internal urethral orifice
Male urinary bladder
The interior of bladder.
Details
Identifiers
Latinostium urethrae internum
TA98A08.3.01.028F
A08.3.01.027M
TA23424
FMA85264
Anatomical terminology

The internal urethral orifice is the opening of the urinary bladder into the urethra.[1]

Anatomy

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It is usually somewhat crescent-shaped.[citation needed]

Relations

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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.[1]

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]

See also

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References

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Public domain This article incorporates text in the public domain from page 1232 of the 20th edition of Gray's Anatomy (1918)

  1. ^ a b "orifice interne de l'urèthre l.m. - Dictionnaire médical de l'Académie de Médecine". www.academie-medecine.fr. Retrieved 2024-06-01.
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