The basic function of the renal system includes filtration, secretion, reabsorption, and excretion. Which of the following substances is secreted by the nephrons and can be found in the filtrate that is eventually excreted?

Question

Quizplus · Accepted Answer

Amino acids, sodium and glucose are normally reabsorbed in the proximal portion of the renal tubules. Creatinine, which is used to assess glomerular filtration, is filtered in the glomerulus and also secreted by the tubules.

The Basic Function of the Renal System Includes Filtration, Secretion