How does urea promote water reabsorption in the collecting ducts?

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How does urea promote water reabsorption in the collecting ducts?

2007-05-05 12:54:10 · 1 answers · asked by Chris D 1 in Science & Mathematics ➔ Medicine

1 answers

By osmosis

Water is the solvent

Urea is a solute with osmotic activity and high concentration in the renal medulla

By setting up a high urea concentration in the kidney tissue, the water gets drawn out of the collecting duct as it passes through the kidney and into the renal pelvis.

See the wiki page on the nephron

2007-05-06 03:07:57 · answer #1 · answered by Orinoco 7 · 0⤊ 0⤋