The major route of excretion for sodium ions (under normal conditions)is the
A)skin.
B)kidney.
C)GI tract.
D)adrenal cortex.
E)sweat.

Question

Quizplus · Accepted Answer

The kidney is the major route of excretion for sodium ions under normal conditions. Sodium is filtered through the glomerulus and reabsorbed in the proximal convoluted tubule by active transport. The amount of sodium that is reabsorbed is tightly regulated by hormones such as aldosterone to maintain proper electrolyte balance in the body.

The Major Route of Excretion for Sodium Ions (Under Normal