The major importance of regulating ECF osmolarity is
A)to help maintain blood pressure
B)to prevent the urine from becoming too concentrated
C)to prevent fluid shifts between cells and the ECF, 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
E)to prevent an acid-base imbalance if the hydrogen ions were to become too concentrated or too dilute in the body fluids

Question

Quizplus · Accepted Answer

Regulating ECF osmolarity is important to prevent fluid shifts between cells and the ECF, which could produce symptoms as the cells swell or shrink. This is because changes in osmolarity can result in water moving into or out of cells, leading to potentially serious consequences, such as cerebral edema or dehydration. Maintaining proper ECF osmolarity helps to prevent such fluid shifts and ensures the normal functioning of cells and tissues. Choices A, B, D, and E are all important aspects of maintaining fluid and electrolyte balance in the body, but they are not directly related to the regulation of ECF osmolarity.

The Major Importance of Regulating ECF Osmolarity Is