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Elsevier
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Trigone of Bladder
Urogenital System

Trigone of Bladder

Trigonum vesicae

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Structure/Morphology

The trigone of the bladder is a smooth triangular shaped segment of the urinary bladder wall.

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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

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The bladder trigone is formed from the mesonephric ducts.

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