Related Experiment Video

Updated: Aug 1, 2026

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat
08:50

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat

Published on: July 3, 2013

Abnormal renal hemodynamics and pressure-natriuresis relationship in Dahl salt-sensitive rats

R J Roman

    The American Journal of Physiology
    |July 1, 1986
    PubMed

    More Related Videos

    Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats10:28

    Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats

    Published on: December 5, 2017

    Long-Term Continuous Measurement of Renal Blood Flow in Conscious Rats05:09

    Long-Term Continuous Measurement of Renal Blood Flow in Conscious Rats

    Published on: February 8, 2022

    Related Concept Videos

    Antihypertensive Drugs: Action of Diuretics01:16

    Antihypertensive Drugs: Action of Diuretics

    Diuretics are antihypertensive drugs used to treat hypertension resulting from sodium and water retention. Sodium, vital for fluid balance and nerve or muscle function, is regulated by the kidneys through millions of nephrons. Blood enters nephrons via afferent arterioles, which branch into capillaries called glomeruli. These filter blood plasma, allowing water and solutes, like sodium ions, to pass through capillary walls into Bowman's capsule. The filtrate then flows through various tubules...
    Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

    Antihypertensive Drugs: Potassium-Sparing Diuretics

    Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
    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...
    Formation of Concentrated Urine01:23

    Formation of Concentrated Urine

    There is a gradient of solutes in the interstitial fluid from the renal cortex through the medulla, known as the medullary osmotic gradient. The juxtamedullary nephrons establish and maintain this gradient using countercurrent mechanisms with loops extending deep into the medulla. These nephrons also use countercurrent mechanisms to regulate urine volume and concentration. The interaction between the descending and ascending limbs of the nephron loop creates an osmotic gradient through...
    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...