The movement of molecules and ions from the peritubular capillaries into interstitial fluid and then into the nephron tubule is called
A)secretion.
B)reabsorption.
C)excretion.
D)filtration.

Question

Quizplus · Accepted Answer

Secretion in the context of kidney function refers to the active or passive transfer of substances from the blood in the peritubular capillaries through the interstitial fluid into the tubular fluid within the nephron. This process allows the body to eliminate waste products and excess ions, and to regulate the blood's pH.

The Movement of Molecules and Ions from the Peritubular Capillaries