intramural ureter

intravesical ureter

The terminal segment of the ureter that is continuous with the distal ureter, lies where the ureter enters the bladder and extends within the bladder wall. The intramural ureter is aperistaltic, serving as a reflux-preventing mechanism, preventing the backflow of urine from the bladder into the ureters.

Tipo Organ
Estrutura pai excretory tube
Nome latino intravesical ureter
FMA ID 77289

Sub-estruturas

left intramural ureter Organ right intramural ureter Organ

Perguntas frequentes

What is the intramural ureter?
The intramural ureter is the terminal segment of the ureter that passes through the wall of the urinary bladder. It is continuous with the distal ureter and extends obliquely through the bladder wall, terminating at the ureteric orifice on the trigone of the bladder interior.
Where is the intramural ureter located?
The intramural ureter is located within the posterior wall of the urinary bladder. It courses obliquely through the bladder musculature for approximately 1 to 2 centimeters before opening into the bladder lumen at the ureteric orifice.
What is the function of the intramural ureter?
The intramural ureter conducts urine into the bladder and, importantly, is aperistaltic — meaning it does not undergo active peristaltic contractions. Its oblique passage through the bladder wall creates a passive valve mechanism that helps prevent vesicoureteral reflux, the backflow of urine from the bladder into the ureters.
What conditions may be associated with the intramural ureter?
The intramural ureter is involved in conditions such as vesicoureteral reflux, ureterovesical junction obstruction, and various congenital ureteral anomalies. These conditions are evaluated by healthcare professionals using imaging and other diagnostic tools.
How is the intramural ureter examined?
The intramural ureter can be assessed with CT urography, voiding cystourethrography (to evaluate reflux), and intravenous pyelography. Cystoscopy allows direct endoscopic visualization of the ureteric orifice where the intramural ureter opens into the bladder.

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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.