What parts of the kidney are impermeable to water

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What parts of the kidney are impermeable to water?Explain the purpose and function of the counter-current multipliersystem in the kidney.oHow is the Loop of Henle a counter-current multiplier?oHow is the Vasa Recta a counter-current multiplier?oOnline Resources:Countercurrent Multiplication in the Loop of Henle:Kidney and the Counter Current Multiplier by Aston University:Khan Academy:-prep/mcat/organ-systems/the-renal-system/a/renal-physiology-counter-current-multiplicationoWater wants to _________________Na+/Cl- ions.Reabsorption of Water in the Kidney—Water follows Sodium:-I&index=4&list=PLnab4uUuCkvKRzk0QHBqcV1_8PNPx3QSdExplain how the concentration gradient changes as the filtratemoves through the nephron tubules.Fill out the chart below andselect which direction water flows.Concentration Gradients in the KidneyPart of theNephronGradientConcentrationDirectionNa+, Cl-and K+aremoving?DirectionWater ismoving?Other importantdetails or substancesreabsorbed orsecreted?(Urea,hormones, etc.)ProximalConvolutedTubuleDescendingLoop ofHenleBottom ofLoop ofBIO 265 Page 10
BIO 265|Module 7: Urinary System and Acid Base RegulationHenleAscendingLoop ofHenleDescendingVasa RectaAscendingVasa RectaIntermedullaryspaceDistalConvolutedTubuleCollectingDuct(withoutADH)CollectingDuct (withADH)Reabsorption of Water:On average, what percentage of water that isfiltered by the glomerulus is reabsorbed in the different parts of thenephron?Part ofKidneyProximalConvolutedTubuleDescendingLoop ofHenleAscendingLoop ofHenleDistalConvolutedTubuleCollectingDuctPercentH2OreabsorbedExplain what Urea is and what its role is in the kidneys.Where doesit act on the nephron?BIO 265 Page 11
BIO 265|Module 7: Urinary System and Acid Base RegulationoRole of Urea:Role of Urea Pt 2:Describe how the body uses ADH and Aquaporins to adjustconcentration and volume of urinary outputduring times ofdehydration compared to times of overhydration.oWhat part of the nephron does ADH have the greatest effect?oOnline Resources:How does Antidiuretic Hormone (ADH) work:Concentration Throughout the Nephron with ADH byMacrophage:and without ADHConcentrating the Medulla – The Role of the Loop of Henle:Explain the principles behind how different diuretics work toexcrete excess water from the body.oVideo Resources:While you don’t need to understand diuretics indepth for this course, looking at how each diuretic impacts thedifferent part of the kidney will help you check your understandingon how the kidney functions.See these video resources:How Diuretics work: USMLE Kaplan Medical: Diuretics:Pharmacology – Diuretics: by Armando Hasudungan:7.3.3 - Hormonal Regulation of Urine ProductionExplain the hormonal regulation of urine formation.

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Term
Winter
Professor
bailey
Tags
Anatomy, Nephron, TED Ed

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