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Related Concept Videos

Urinary Bladder01:23

Urinary Bladder

The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
The Micturition Reflex01:26

The Micturition Reflex

Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating urine...
Disorders of the Urinary System01:20

Disorders of the Urinary System

The urinary system is responsible for eliminating waste and excess fluids from the body. However, disorders of the urinary system can arise due to various reasons like infections, stress, age, congenital abnormalities, and lifestyle.
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
Nursing Assessment of the Genitourinary System II: Inspection and Palpation01:26

Nursing Assessment of the Genitourinary System II: Inspection and Palpation

The nursing assessment of the genitourinary (GU) system involves a systematic inspection and palpation to identify abnormalities in the kidneys, bladder, and surrounding structures.InspectionMouth: Inspect for signs of kidney dysfunction, such as stomatitis (inflammation of the mouth) and ammonia breath, which may occur in advanced kidney disease due to the buildup of urea, breaking down into ammonia.Skin: Check for pallor, which could indicate anemia caused by kidney disease. Look for...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...

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Related Experiment Video

Updated: Jun 14, 2026

Detrusor Underactivity Model in Rats by Conus Medullaris Transection
03:26

Detrusor Underactivity Model in Rats by Conus Medullaris Transection

Published on: August 28, 2020

[Bladder dysfunction caused by a large presacral retention mucocele].

T Klein1, M Diedrich, A Holz

  • 1Klinik für Urologie und Neuro-Urologie, Ruhr-Universität Bochum, Marienhospital Herne, Widumer Strasse 8, Herne, Germany. Toby.Klein@t-online.de

Der Urologe. Ausg. A
|March 30, 2010
PubMed
Summary

A large pelvic mucocele caused long-term bladder dysfunction in a man. Surgical removal resolved his urinary symptoms, highlighting the importance of considering rare masses in neuro-urology.

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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

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Last Updated: Jun 14, 2026

Detrusor Underactivity Model in Rats by Conus Medullaris Transection
03:26

Detrusor Underactivity Model in Rats by Conus Medullaris Transection

Published on: August 28, 2020

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

Area of Science:

  • Urology
  • Gastroenterology
  • Surgical Pathology

Background:

  • Pelvic masses can cause significant bladder dysfunction, including urinary stream reduction and incomplete emptying.
  • Neuro-urology addresses complex bladder issues often linked to neurological or structural abnormalities.

Observation:

  • A 42-year-old male presented with lifelong symptoms of reduced urinary stream, poor bladder filling, and urinary retention.
  • Previous conservative treatments for his bladder dysfunction were unsuccessful.
  • Diagnostic imaging revealed a large cystic mass impinging on the urinary bladder.

Findings:

  • Histopathological examination identified the mass as a retention mucocele.
  • The patient had a history of surgical correction for congenital anal atresia.
  • Surgical excision of the mucocele was performed.

Implications:

  • Retention mucoceles, though rare, can present as large pelvic masses causing significant bladder outlet obstruction.
  • This case underscores the need for comprehensive evaluation in neuro-urology, including consideration of congenital anomalies and their sequelae.
  • Successful surgical management of such masses can restore normal bladder function.