Match the aspects of extracellular fluid, labelled a. and b., with the descriptions. (Options may be used more than once or not at all.)
-depends primarily on Na⁺ balance
A)regulation of ECF volume
B)regulation of ECF osmolarity

Question

Quizplus · Accepted Answer

AThe volume of the extracellular fluid (ECF) is directly influenced by the balance of sodium (Na⁺) ions, as sodium is the primary cation in the ECF and its concentration determines the movement of water, thereby affecting the volume of the ECF. Sodium balance does not directly regulate the osmolarity of the ECF; instead, osmolarity is primarily regulated by the balance of water, which can be influenced by factors such as the intake and excretion of water, not just sodium.

Match the Aspects of Extracellular Fluid, Labelled A