The movement of water and electrolytes between fluid compartments is regulated primarily by

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Quizplus · Accepted Answer

Hydrostatic pressure and osmotic pressure are the primary forces that regulate the movement of water and electrolytes between fluid compartments. Hydrostatic pressure is the force exerted by a fluid against the walls of its container, which pushes fluids out of a capillary or vessel. Osmotic pressure is the force generated by the movement of water across a membrane due to differences in solute concentrations. Together, these two pressures govern the movement of water and electrolytes between compartments. Diffusion and osmosis, active and passive transport, pinocytosis and phagocytosis also play roles in movement of substances between compartments, but they are not the primary regulatory mechanisms.

The Movement of Water and Electrolytes Between Fluid Compartments Is