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Aquaporins of the Kidney and Water Homeostasis - Anatomy & Physiology (view source)

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** Thanks to the gradient created by the hypertonic medulla which is present due to the countercurrent multiplier in the [[Loop Of Henle - Anatomy & Physiology| Loop of Henle]]

* This system allows both concentrated and dilute urine to be produced depending on ADH secretion and therefore the density of aquaporins in the principal cell membranes

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~~==Other Means of Water Homeostasis==~~

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As well as the aquaporins in the distal tubule and collecting duct significant water reabsorption occurs in the [[Proximal Tubule - Anatomy & Physiology| proximal tubule]] and the [[Loop Of Henle - Anatomy & Physiology| Loop of Henle]] and is linked to the absorption of [[Sodium Homeostasis - Physiology| sodium.]]

==Species Variation of the Ability to Conserve Water==

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