Total-body balance of water and sodium ion is largely maintained by regulating urinary loss of these molecules.

Question

Quizplus · Accepted Answer

The kidneys play a crucial role in maintaining the balance of water and sodium ion in the body by regulating their excretion through urine. When there is too much water in the body, the kidneys can produce more dilute urine to get rid of the excess water. When there is too little water, the kidneys can conserve water by producing more concentrated urine. Similarly, when there is too much sodium ion in the body, the kidneys can excrete more sodium ion to maintain balance, and when there is too little sodium ion, they can conserve it by decreasing its excretion. Therefore, it is true that the regulation of urinary loss of water and sodium ion is a critical mechanism for maintaining total-body balance.

Total-Body Balance of Water and Sodium Ion Is Largely Maintained