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Hello students, in this video we will discuss about reabsorption of water.
00:10
It is a critical process in the kidney.
00:17
It involves pct that is proximal convoluted tube, pct and collecting duct.
00:28
First the pct is the first segment of the renal tubule and plays a major role in reabsorption.
00:39
It is highly permeable to water and solutes.
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As filtrate pass through pct, water is reabsorbed passively through osmosis.
01:06
This occurs due to the presence of water channels called aquaporins in the cell membranes of the pct.
01:24
These aquaporins allow water to move out of the tubule and into the surrounding interstitial fluid following the concentration gradient.
01:47
The reabsorption of water in the pct is unregulated and occurs in parallel with the reabsorption of various solutes such as glucose, amino acids and ions.
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Second is dct.
02:20
It is located after the pct and is involved in fine tuning the reabsorption process unlike the pct...