What is the importance of regulating ECF osmolarity? A) to help maintain blood pressure B) to prevent the urine from becoming too concentrated C) to prevent fluid shifts between the cells and the extracellular fluid, which could produce profound symptoms as the cells swell or shrink D) to prevent spontaneous depolarization of nerve and muscle cell membranes because of shifts in Na⁺ balance

Question

Quizplus · Accepted Answer

Regulating ECF osmolarity is crucial to prevent fluid shifts between the cells and the extracellular fluid, which could produce profound symptoms as the cells swell or shrink. Maintaining the right balance of fluid and electrolytes in the body is necessary for proper cell function and to avoid serious complications like edema or dehydration.

Answer: A and D are incorrect because while regulating ECF osmolarity can indirectly affect blood pressure, it is not the main reason for its importance, and regulating ECF osmolarity does not directly prevent spontaneous depolarization of nerve and muscle cell membranes.

What Is the Importance of Regulating ECF Osmolarity