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ureterovesical junction

vesico-ureteral junction

At the site where each ureter enters the urinary bladder lies a valve-like structure, the ureterovesical junction. Its competence is a matter of geometry rather than of a discrete sphincteric organ: the ureter normally passes through the detrusor muscle at an oblique angle, and that oblique intramural course is what prevents urine from refluxing back up the ureter toward the kidney. When bladder pressure rises, the surrounding detrusor compresses the obliquely traversing segment and closes it. The junction is recorded in Latin as the vesico-ureteral junction and is classified within the urinary system as a valve. Because reflux protection depends on the angle of entry, the junction is described anatomically in terms of that trajectory through the bladder wall.

The valve-like structure found at the site of entry of the ureter into the urinary bladder, normally displays an oblique angulation through the detrusor to avoid reflux of urine up the ureters and the kidney.

On this page
Type Organ
Système corporel Urinaire
Structure parente valve
Nom latin vesico-ureteral junction
FMA ID 15899

Frequently Asked Questions

What is the ureterovesical junction?

The valve-like structure found at the site of entry of the ureter into the urinary bladder, normally displays an oblique angulation through the detrusor to avoid reflux of urine up the ureters and the kidney.

What body system is the ureterovesical junction part of?

The ureterovesical junction is part of the Urinaire.

What is the Latin name for the ureterovesical junction?

The Latin name for the ureterovesical junction is vesico-ureteral junction.

References

  1. Foundational Model of Anatomy — FMA:15899 Reference anatomy ontology (University of Washington)
  2. UBERON — UBERON:0009973 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)

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Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.