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Nephrons are composed of glomeruli and tubules that maintain homeostasis through filtration, reabsorption, and secretion. The million nephrons located in each kidney allow organisms to maintain a balance of water, minerals, electrolytes, and hydrogen ions. Through its hormonal functions, the kidneys influence blood pressure, calcium metabolism, and red cell production.
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© 1993 Elsevier Inc. Published by Elsevier Inc.
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