Multiple choice

Which of the following statements does not characterise the renal tubules?

  1. The major changes in tubular fluid composition are fabricated in the distal tubules.

  2. The proximal tubules consequentially keeps the concentration of urine same.

  3. A part of the loop of Henle is permeable to water.

  4. Vasa recta are the only blood supply to renal medulla of the kidneys.

  5. The walls of the tubules are made up of epithelial cells.
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A Correct answer
Explanation

The major transitions to tubular fluid are made in the proximal tubules, where there is considerable reabsorption of the bulk of solutes and water. The distal tubules also carry out reabsorption, but on a smaller scale.

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