Which of the Following is NOT One of the Three

Question

Which of the following is NOT one of the three steps (processes)involved in urine formation?
A)countercurrent mechanism
B)tubular reabsorption
C)glomerular filtration
D)tubular secretion

Accepted Answer

The three main processes involved in urine formation are glomerular filtration, tubular reabsorption, and tubular secretion. The countercurrent mechanism is related to the concentration of urine but is not one of the primary steps in urine formation.