By adjusting the volume of water lost in urine, and releasing erythropoietin and renin, the urinary system specifically functions in
A) helping to stabilize blood pH.
B) conserving valuable nutrients.
C) regulating blood pressure.
D) regulating plasma concentrations of ions.
E) controlling the concentration of vitamins.

Question

Quizplus · Accepted Answer

The urinary system plays an important role in regulating blood pressure through the release of the hormone renin. By adjusting the volume of water lost in urine, the urinary system also helps regulate blood volume and thus blood pressure. Choice A is not incorrect, as the urinary system can also help stabilize blood pH, but it is not the most specific function of the system. Choices B, D, and E are not accurate functions of the urinary system.

By Adjusting the Volume of Water Lost in Urine, and Releasing