Internal urethral orifice
- Internal urethral orifice
Infobox Anatomy
Name = PAGENAME
Latin = ostium urethrae internum
GraySubject = 255
GrayPage = 1232
Caption = Urinary bladder
Caption2 = The interior of bladder.
System =
MeshName =
MeshNumber =
DorlandsPre = o_09
DorlandsSuf = 12602099
The internal urethral orifice is the opening of the urinary bladder into the urethra. It is placed at the apex of the trigonum vesicae, in the most dependent part of the bladder, and is usually somewhat crescent-shaped; the mucous membrane immediately behind it presents a slight elevation in males, the uvula vesicae, caused by the middle lobe of the prostate.
ee also
* Internal sphincter muscle of urethra
External links
*
* - "The Male Pelvis: The Urethra"
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Look at other dictionaries:
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