Concentration and Dilution of Urine
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Release Date: 2024-03-14
Excretion of Excess Water: The kidneys regulate the osmolarity and sodium concentration in the extracellular fluid by adjusting water excretion independently of dissolved substance excretion. When there's excess water, the kidneys produce diluted urine by reabsorbing less water from the distal tubules and collecting ducts. ADH, or antidiuretic hormone, plays a key role in urine [...]