Which electrolyte is the primary regulator of fluid volume?

A) Potassium
B) Calcium
C) Sodium
D) Magnesium

Electrolyte

A mineral in your body that carries an electric charge, important for numerous bodily functions, including maintaining fluid balance and muscle function.

Fluid Volume

A measurement of the amount of fluid in a particular space, often related to the volume of blood or other bodily fluids inside an organism.

Sodium

A chemical element, represented by the symbol Na, essential for many body processes including nerve signal transmission and muscle contraction.