The urinary system helps to maintain the extracellular fluid pH by
A) synthesizing buffers.
B) retaining carbon dioxide in the filtrate.
C) excreting excess hydrogen ions.
D) combining hydrogen ions with urea.
E) signaling the respiratory system to adjust breathing rate.

Question

Quizplus · Accepted Answer

The kidneys play a crucial role in maintaining acid-base balance by excreting excess hydrogen ions into the urine. This helps to prevent the buildup of acid in the extracellular fluid and helps to maintain a stable pH.

The Urinary System Helps to Maintain the Extracellular Fluid PH