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ANNA J. 1996 Oct;23(5):487-95; quiz 496-7.

Renal regulation of extracellular fluid volume and osmolality.

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University of Colorado Health Sciences Center, School of Nursing, Denver, USA.


In order for our body cells to function properly, they must be surrounded in extracellular fluid that is relatively constant with regard to osmolality. The kidneys, in concert with neural and endocrine input, regulate the volume and osmolality of the extracellular fluid by altering the amount of sodium and water excreted. This is accomplished primarily though alterations in sodium and water reabsorption, the mechanisms of which differ within each nephron segment.

[Indexed for MEDLINE]

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