Structure/Morphology
The trigone of the bladder is a smooth triangular shaped segment of the urinary bladder wall.
Anatomical Relations
The trigone of the bladder is located along the posterior surface of the bladder and marks the point of opening for the two ureters.
Function
The trigone of the bladder is particularly sensitive to stretch and expansion, which signals the brain to become aware of the “need” to urinate.
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Bladder Trigone
The bladder trigone is a triangular area at the base of the bladder bounded by the internal urethral meatus and the two ureteric orifices.
