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The Micturition Reflex

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...

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Related Experiment Video

Updated: Jul 2, 2025

Transurethral Induction of Mouse Urinary Tract Infection

Transurethral Induction of Mouse Urinary Tract Infection

Published on: August 5, 2010

[Urinary incontinence in children].

Hina Simonnet¹, Pauline Lallemant-Dudek¹

¹Service de médecine physique et de réadaptation, hôpital pédiatrique Armand-Trousseau, AP-HP, Paris, France.

La Revue Du Praticien

|February 28, 2024

Summary

Urinary incontinence in children is usually functional. Evaluation involves clinical examination and bladder diaries to identify causes and guide tailored treatments for improved quality of life.

Area of Science:

Pediatric Urology
Neurology
Behavioral Medicine

Context:

Urinary incontinence is a common condition in children and adolescents.
Often functional, it can also stem from underlying urological or neurological issues.
Distinguishing between daytime and nocturnal incontinence is crucial for effective management.

Purpose:

To outline the diagnostic approach for pediatric urinary incontinence.
To detail various treatment options available for different types of incontinence.
To emphasize the importance of considering neurocognitive factors and quality of life.

Summary:

Initial assessment includes thorough questioning, clinical examination, and a bladder diary to rule out organic causes.
Renal and bladder ultrasound are recommended; urodynamic studies are not routinely indicated.

Keywords:

Child Urinary Incontinence

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Last Updated: Jul 2, 2025

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Treatment strategies encompass lifestyle advice, bowel management, medication, pelvic floor therapy, behavioral interventions, and posterior tibial nerve stimulation.

Impact:

Provides a framework for diagnosing and managing pediatric urinary incontinence.
Highlights the multifactorial nature of the condition, including functional, urological, neurological, and neurocognitive aspects.
Underscores the potential for slow recovery and significant impact on a child's quality of life, necessitating a comprehensive approach.