Question

Which of the following statement is false regarding the collecting duct?

I. Collecting duct is a straight duct

II. It extends from the cortex to medulla

III. Large amount of water could be reabsorbed from in to produce concentrated urine

IV. Small amount of urea diffuses out from it into the medulla to keep up the osmolarity

V. It plays a role to maintain pH and ionic balance of blood by the selective secretion of H+ and K+ ions

• A. Only I
• B. Only IIII
• C. IV and V
• D. None

Answer 1

Answer: (A)

Only I