Related Experiment Video

Updated: Jul 5, 2026

The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation
08:08

The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation

Published on: August 21, 2012

Water permeability and lipid composition of toad urinary bladder: the influence of temperature

M Parisi, A Gauna, E Rivas

    The Journal of Membrane Biology
    |May 1, 1976
    PubMed

    More Related Videos

    A Decentralized (Ex Vivo) Murine Bladder Model with the Detrusor Muscle Removed for Direct Access to the Suburothelium during Bladder Filling06:36

    A Decentralized (Ex Vivo) Murine Bladder Model with the Detrusor Muscle Removed for Direct Access to the Suburothelium during Bladder Filling

    Published on: November 28, 2019

    In Vivo Luminal Measurement of Distension-Evoked Urothelial ATP Release in Rodents09:17

    In Vivo Luminal Measurement of Distension-Evoked Urothelial ATP Release in Rodents

    Published on: September 7, 2022

    Related Concept Videos

    Membrane Fluidity01:23

    Membrane Fluidity

    Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.Fatty acids tails of phospholipids can be either saturated or...
    Membrane Fluidity01:26

    Membrane Fluidity

    Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
    Mosaic nature of the membrane
    The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...
    Formation of Dilute Urine01:20

    Formation of Dilute Urine

    The formation of dilute urine is a critical renal adaptation that maintains fluid balance, particularly during periods of high fluid intake. This process primarily involves the juxtamedullary nephrons. By adjusting the permeability of water and ions in response to physiological conditions, the kidneys can either conserve or excrete water, resulting in concentrated or dilute urine.
    Filtrate Osmolarity in the PCT
    Initially, as the filtrate passes through the proximal convoluted tubule (PCT), its...
    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...
    Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion01:22

    Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion

    The kidneys maintain homeostasis through filtration, reabsorption, and secretion. Tubular reabsorption and secretion are crucial in forming urine and regulating electrolytes, water balance, and waste elimination.Tubular Reabsorption and Secretion ProcessesTubular reabsorption is the process that reclaims essential substances such as electrolytes, glucose, amino acids, and water from the glomerular filtrate back into the bloodstream. This is achieved through passive and active transport...
    Physiology of the Genitourinary System III: Urine Concentration and Dilution01:20

    Physiology of the Genitourinary System III: Urine Concentration and Dilution

    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...