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Water Homeostasis

Meaning

Water Homeostasis is the tightly regulated physiological process by which the body maintains a constant and appropriate volume and concentration of water and dissolved solutes within the intracellular and extracellular fluid compartments. This precise balance is critical for cellular function, blood pressure regulation, and the efficient transport of hormones and nutrients throughout the body. The endocrine system plays a central role in this regulation, ensuring that osmotic pressure and fluid volume remain within narrow, healthy parameters despite variations in external intake and loss.