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To investigate the microanatomy of the ureterovesical junction and its role in urine reflux prevention.

March 2, 2026Journal of Marine Fisheries

Functional anatomy of the human ureterovesical junction

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To investigate the microanatomy of the ureterovesical junction and its role in urine reflux prevention.
Examined ten fresh cadaveric bladders of varying genders and mean age of 70 years.
Bladders were fixed within 24 hours, frozen, and sectioned for analysis.
Cholinesterase activity visualized to differentiate muscle types and their spatial distribution.
Identified three muscle groups at the ureterovesical junction: the detrusor muscle, ureteric muscle layers, and muscularis mucosae.
Detrusor and deep trigone mainly positive for acetylcholinesterase; ureteric muscle layers for butyrylcholinesterase.
No muscular connection found between ureter and bladder musculature, supporting distinct functional roles.

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Anatomical study unveils muscle organization in ureterovesical junction, suggesting implications for urinary reflux prevention.

Roshani et al. (1996) studied this question.

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