Formation of a small volume of concentrated urine in dehydration is associated with____________?
Correct answer: D. All of these
- A. More reabsorption in the PCT
- B. More concentration in loop of Henle
- C. More reabsorption of DCT and collecting ducts
- D. All of these
Explanation
Dehydration increases proximal sodium and water reabsorption, strengthens the medullary concentration gradient through the loop of Henle, and raises ADH-mediated water reabsorption in the distal nephron and collecting ducts. Together, these changes produce a small volume of concentrated urine.
Last updated
Practise Renal Physiology
39 free Renal Physiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A decrease in the urine output is called_____________?
Ammonia in the kidney tubules is excreted in exchange for______________?
Amount of glucose absorbed in proximal convoluted tubule_______________?
Brush border is seen in________________?
Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________?