Which of the following urine-making processes occurs first?
A)Urine concentration by the collecting ducts
B)Glomerular filtration
C)Reabsorption of Na+
D)Secretion of K+

Question

Quizplus · Accepted Answer

Glomerular filtration is the first step in the urine-making process. It occurs in the glomerulus of the nephron where blood pressure forces water and small solutes out of the blood and into the Bowman's capsule. From there, the filtrate moves through the rest of the nephron where additional processes such as reabsorption and secretion occur to form urine.

Which of the Following Urine-Making Processes Occurs First