The regulation of acid -base balance in the kidneys occurs primarily through the unique action of which cells in the distal tubules and collecting ducts?
A) mesangial cells B) granular cells C) principal cells D) intercalated cells E) podocytes
Plasma can gain solutes and/or water from which of the following?
A) gastrointestinal tract only B) renal tubules only C) bone only D) both the gastrointestinal tract and bone E) both the gastrointestinal tract and renal tubules