Dehydration does not normally occur because about 99% of the filtrate is returned to the blood by _______.
A) tubular reabsorption
B) the renal artery
C) the juxtaglomerular apparatus
D) tubular secretion

Question

Quizplus · Accepted Answer

Dehydration does not usually occur because the majority of the filtrate produced by the kidneys is reabsorbed instead of being excreted. Approximately 99% of the filtrate is returned to the blood via tubular reabsorption, which helps to maintain the body's fluid balance. Therefore, choice A is the correct answer as it explains how most of the filtrate is returned to the blood. The other options, such as the renal artery, juxtaglomerular apparatus, and tubular secretion, are not directly involved in returning filtrate to the blood and are therefore not the best choice.

Dehydration Does Not Normally Occur Because About 99% of the Filtrate