The body's water volume is closely tied to the level of which of the following ions?
A)hydrogen ions
B)calcium ions
C)sodium ions
D)potassium ions

Question

Quizplus · Accepted Answer

The body's water volume is closely tied to the level of sodium ions. Sodium is the most abundant ion in the extracellular fluid, and it plays a critical role in maintaining the osmotic balance between the intracellular and extracellular fluids. A rise in sodium concentration stimulates the release of antidiuretic hormone (ADH), which increases water retention and conserves body fluids. A decrease in sodium concentration reduces ADH secretion, leading to increased urine output and fluid loss.

The Body's Water Volume Is Closely Tied to the Level