The trigone is a smooth triangular region of the internal urinary bladder formed by the two ureteral orifices and the internal urethral orifice. Image File history File links Illu_bladder. ... Image File history File links Gray1140. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Elseviers logo. ... In the anatomy of mammals, the urinary bladder is a hollow, muscular and distensible or elastic organ that sits on the pelvic floor. ... The internal urethral orifice is placed at the apex of the trigonum vesicae, in the most dependent part of the bladder, and is usually somewhat crescentic in form; the mucous membrane immediately behind it presents a slight elevation, the uvula vesicae, caused by the middle lobe of the prostate. ...
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. In animals, the brain, or encephalon (Greek for in the head), is the control center of the central nervous system. ...
Clinically important because infections tend to persist in this region. An infection is the detrimental colonization of a host organism by a foreign species. ...