 | This article includes alist of references,related reading, orexternal links,but its sources remain unclear because it lacksinline citations. Please helpimprove this article byintroducing more precise citations.(May 2015) (Learn how and when to remove this message) |
| Internal urethral orifice | |
|---|---|
 Male urinary bladder | |
 The interior of bladder. | |
| Details | |
| Identifiers | |
| Latin | ostium urethrae internum |
| TA98 | A08.3.01.028F A08.3.01.027M |
| TA2 | 3424 |
| FMA | 85264 |
| Anatomical terminology | |
Theinternal urethral orifice is the opening of theurinary bladder into theurethra.[1]
It is usually somewhat crescent-shaped.[citation needed]
It is formed by theneck of the urinary bladder. It opens at the apex/inferior angle of thetrigone of the bladder, some 2-3 cm anteromedial to eitherureteral orifice.[1]
Themucous membrane immediately posterior to it presents a slight elevation in males - theuvula vesicae - caused by the middle lobe of theprostate.[citation needed]
This article incorporates text in thepublic domain frompage 1232 of the 20th edition ofGray's Anatomy(1918)
 | This article related to thegenitourinary system is astub. You can help Wikipedia byexpanding it. |
