https://wikimd.com/index.php?action=history&feed=atom&title=Collecting_duct_systemCollecting duct system - Revision history2026-04-20T20:18:50ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.com/index.php?title=Collecting_duct_system&diff=6317069&oldid=prevPrab: CSV import2025-02-18T04:27:35Z<p>CSV import</p>
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</table>Prabhttps://wikimd.com/index.php?title=Collecting_duct_system&diff=5327524&oldid=prevPrab: CSV import2024-02-28T22:38:27Z<p>CSV import</p>
<p><b>New page</b></p><div>'''Collecting duct system''' is a part of the [[kidney]]'s [[nephron]] that plays a crucial role in the body's [[water balance]] and [[electrolyte balance]]. It is the final component of the nephron where the [[urine]] is collected before it is transported to the [[renal pelvis]] and [[ureter]].<br />
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==Structure==<br />
The collecting duct system is composed of two main parts: the [[cortical collecting duct]] and the [[medullary collecting duct]]. These ducts are lined with two types of cells: [[principal cells]] and [[intercalated cells]]. Principal cells are responsible for the reabsorption of [[sodium]] and water and the secretion of [[potassium]], while intercalated cells are involved in the regulation of [[acid-base balance]].<br />
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==Function==<br />
The primary function of the collecting duct system is to fine-tune the amount of water, sodium, and potassium that is reabsorbed back into the body and the amount that is excreted in the urine. This process is regulated by two hormones: [[antidiuretic hormone (ADH)]] and [[aldosterone]]. ADH increases the permeability of the collecting duct to water, allowing more water to be reabsorbed back into the body. Aldosterone increases the reabsorption of sodium and the secretion of potassium.<br />
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==Clinical significance==<br />
Abnormalities in the collecting duct system can lead to various kidney disorders. For example, [[nephrogenic diabetes insipidus]] is a condition caused by a defect in the collecting duct's response to ADH, resulting in excessive urine production. [[Polycystic kidney disease]] is another condition that can affect the collecting duct, leading to the formation of multiple cysts in the kidney.<br />
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==See also==<br />
* [[Nephron]]<br />
* [[Renal physiology]]<br />
* [[Kidney disease]]<br />
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[[Category:Kidney]]<br />
[[Category:Anatomy]]<br />
[[Category:Physiology]]<br />
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