The chief ion used to maintain the volume of fluid outside cells is:

Question

Quizplus · Accepted Answer

Sodium is the chief ion responsible for maintaining the volume of fluid outside cells through the process of osmoregulation. It is involved in the regulation of extracellular fluid volume, blood pressure, and the function of nerves and muscles. The other options, such as potassium, calcium, and chloride, have different roles in the body and are not primarily responsible for maintaining fluid volume outside cells.

The Chief Ion Used to Maintain the Volume of Fluid