Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

504
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...
504
Urethra01:16

Urethra

2.3K
The urethra is a hollowed tubular organ through which urine is expelled from the body. This structure extends from the bladder to the external opening, allowing urine to be released.
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
2.3K
Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

3.3K
Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
3.3K
Accessory Glands of the Male Reproductive System01:16

Accessory Glands of the Male Reproductive System

2.5K
The accessory ducts involved in sperm maturation and transportation include the epididymides, vasa deferentia, ejaculatory ducts, and urethra. These ducts play a critical role in the maturation, storage, and transportation of sperm from the testes to the urethra, where it is then released during ejaculation.
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
2.5K
Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

1.3K
Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
1.3K
Physiology of the Genitourinary System III: Urine Concentration and Dilution01:20

Physiology of the Genitourinary System III: Urine Concentration and Dilution

215
The kidneys concentrate or dilute urine to maintain water and electrolyte balance. Nephrons, particularly the loop of Henle, play a crucial role in this process through the countercurrent multiplication system. This system establishes a high osmolarity in the renal medulla, which is essential for water reabsorption. In the loop of Henle’s descending limb, water is reabsorbed into the surrounding medulla due to its permeability to water. In contrast, the ascending limb actively transports...
215

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Natural language processing models for patient-centered summaries of prostatectomy pathology reports.

Scientific reports·2026
Same author

In the Emerging Era of GLP-1 Receptor Agonists There Is an Unrecognized Need to Change the Formulation of Oral Urologic Agents for Erectile Dysfunction, Benign Prostatic Hyperplasia, and Overactive Bladder.

The Journal of urology·2026
Same author

New CPT codes for prostate biopsy improve alignment of reimbursement with evidence-based practice.

Urologic oncology·2026
Same author

<i>Ad-verse Effects:</i> Pharmaceutical Advertising Shifts Drug Recommendations by Consumer-Facing AI.

medRxiv : the preprint server for health sciences·2026
Same author

Predictors of fluoroquinolone-resistant bacterial colonization prior to prostate biopsy: a secondary analysis of two randomized trials.

Prostate cancer and prostatic diseases·2026
Same author

How to meaningfully evaluate AI in clinical medicine.

Nature medicine·2026
Same journal

Re: Ludovico Maria Basadonna, Federica Passarelli, Giorgio Graps, et al. The Influence of Music on Perceived Pain and Levels of Anxiety While Undergoing Transperineal Prostate Biopsy: The VIVALDI Trial. Eur Urol Open Sci 2026;87:107-14.

European urology open science·2026
Same journal

Knowledge Gaps and Barriers to Care in Men with Postprostatectomy Incontinence: Evidence from the German ProKontinenz Trial.

European urology open science·2026
Same journal

Evolving Trends and Perioperative Outcomes of Surgical Treatment for Male Stress Urinary Incontinence: Results from the GRAND Study Register.

European urology open science·2026
Same journal

Contemporary Practices in the Assessment and Management of Climacturia: Results from an International Survey.

European urology open science·2026
Same journal

Optimization of Thulium Fiber Laser Lithotripsy Efficacy Based on Multidimensional Parameter Combination Strategies.

European urology open science·2026
Same journal

Incorporating Lower Urinary Tract Symptoms to Predict the Risk of Positive Prostate Magnetic Resonance Imaging.

European urology open science·2026
See all related articles

Related Experiment Video

Updated: Nov 5, 2025

Urethroplasty with Pedicled Tunica Vaginalis for the Treatment of Long-segment Anterior Urethral Stricture Caused by Lichen Sclerosus of Glans Penis
03:55

Urethroplasty with Pedicled Tunica Vaginalis for the Treatment of Long-segment Anterior Urethral Stricture Caused by Lichen Sclerosus of Glans Penis

Published on: October 18, 2024

394

Racial Variation in Membranous Urethral Length and Postprostatectomy Urinary Function.

Spyridon P Basourakos1, Ashwin Ramaswamy1, Miko Yu1

  • 1Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA.

European Urology Open Science
|May 13, 2021
PubMed
Summary
This summary is machine-generated.

Asian men have shorter membranous urethral length (MUL) before prostatectomy, increasing their risk of urinary incontinence. This study highlights potential racial anatomical differences impacting post-prostatectomy outcomes.

Keywords:
membranous urethral lengthprostate cancerrobotic-assisted radical prostatectomyurinary function

More Related Videos

Vessel-sparing Excision and Primary Anastomosis
08:09

Vessel-sparing Excision and Primary Anastomosis

Published on: January 7, 2019

11.7K
Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

19.5K

Related Experiment Videos

Last Updated: Nov 5, 2025

Urethroplasty with Pedicled Tunica Vaginalis for the Treatment of Long-segment Anterior Urethral Stricture Caused by Lichen Sclerosus of Glans Penis
03:55

Urethroplasty with Pedicled Tunica Vaginalis for the Treatment of Long-segment Anterior Urethral Stricture Caused by Lichen Sclerosus of Glans Penis

Published on: October 18, 2024

394
Vessel-sparing Excision and Primary Anastomosis
08:09

Vessel-sparing Excision and Primary Anastomosis

Published on: January 7, 2019

11.7K
Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
05:25

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

19.5K

Area of Science:

  • Urology
  • Radiology
  • Men's Health

Background:

  • Post-prostatectomy urinary incontinence is a common complication.
  • Membranous urethral length (MUL) measured by MRI is a predictor of incontinence.
  • Racial anatomical differences in MUL have not been extensively studied.

Purpose of the Study:

  • To compare MUL in Asian and non-Asian men.
  • To investigate the association between MUL, race, and post-prostatectomy urinary function.

Main Methods:

  • Retrospective analysis of prostate MRI scans to measure MUL.
  • Comparison of MUL between Asian and non-Asian cohorts.
  • Assessment of post-prostatectomy urinary function using the Expanded Prostate Cancer Index Composite for Clinical Practice (EPIC-CP).

Main Results:

  • Asian men had significantly shorter MUL compared to non-Asian men (7.9mm vs. 10.9mm).
  • Asian men reported significantly worse EPIC-CP urinary scores at ≥12 months post-prostatectomy.
  • Shorter MUL was associated with increased risk of urinary incontinence in this cohort.

Conclusions:

  • Racial differences in MUL may contribute to disparities in post-prostatectomy urinary incontinence.
  • Further research is needed to confirm these findings and explore underlying mechanisms.
  • Consideration of anatomical variations by race may inform surgical planning and patient counseling.