What maintains the volume and composition of body fluids?
I.filtration and reabsorption of sodium by the kidneys
II.regulation of water balance by vasopressin (ADH)III.gastrointestinal filtration and excretion of chloride

Question

Quizplus · Accepted Answer

Filtration and reabsorption of sodium by the kidneys and regulation of water balance by vasopressin (ADH) are the primary mechanisms responsible for maintaining the volume and composition of body fluids. Gastrointestinal filtration and excretion of chloride may also play a role, but are not as significant as the other two mechanisms. Therefore, options B and C are not the best choices, and the correct answer is A.

What Maintains the Volume and Composition of Body Fluids