Related Experiment Video

Updated: Aug 19, 2026

Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
06:05

Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection

Published on: October 12, 2017

[Contractile function of ureter in its anomalies in children]

V I Kirpatovskiĭ, I S Mudraia, A G Pugachev

    Urologiia (Moscow, Russia : 1999)
    |January 10, 2001
    PubMed

    More Related Videos

    An Immature Murine Model of Reversible Unilateral Ureteral Obstruction06:37

    An Immature Murine Model of Reversible Unilateral Ureteral Obstruction

    Published on: April 4, 2025

    Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis04:37

    Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis

    Published on: April 25, 2025

    Related Concept Videos

    Ureters01:22

    Ureters

    The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
    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...
    Urethra01:16

    Urethra

    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 urethra is...
    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...
    Anatomy of the Genitourinary System I: Kidneys and Ureters01:11

    Anatomy of the Genitourinary System I: Kidneys and Ureters

    The upper urinary system comprises two kidneys and two ureters, which are crucial in filtering blood and forming urine.KidneysLocation and Structure:The kidneys are two bean-shaped organs positioned behind the peritoneum on either side of the spine.Kidneys are between the 12th thoracic (T12) and the 3rd lumbar (L3) vertebrae.The position of the liver causes the right kidney to sit slightly lower than the left.Protective Layers:Each kidney is enveloped in a tough, fibrous membrane called 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...