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Trigone of urinary bladder
The trigone is a smooth triangular region of the internal urinary bladder formed by the two ureteral orifices and the internal urethral orifice.
Additional recommended knowledge
The area is very sensitive to expansion and once stretched to a certain degree, the urinary bladder signals the brain of its need to empty. The signals become stronger as the bladder continues to fill.
Clinically important because infections tend to persist in this region.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Trigone_of_urinary_bladder". A list of authors is available in Wikipedia.|