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Questions and Answers
Which structure is responsible for maintaining an increasing osmolarity towards the inner medullary interstitium?
Which structure is responsible for maintaining an increasing osmolarity towards the inner medullary interstitium?
- Collecting tubule
- Vasa recta (correct)
- Ascending limb of Henle's loop
- Descending limb of Henle's loop
What is the main cause of the concentration gradient in the medullary interstitium?
What is the main cause of the concentration gradient in the medullary interstitium?
- Water and urea
- NaCl and water
- NaCl and glucose
- NaCl and urea (correct)
Which limb of Henle's loop transports NaCl?
Which limb of Henle's loop transports NaCl?
- Ascending limb (correct)
- Thin segment
- Collecting tubule
- Descending limb
Which limb of vasa recta exchanges NaCl with the ascending limb of Henle's loop?
Which limb of vasa recta exchanges NaCl with the ascending limb of Henle's loop?
How is NaCl returned to the interstitium from vasa recta?
How is NaCl returned to the interstitium from vasa recta?
Which structure transports small amounts of urea into the interstitium?
Which structure transports small amounts of urea into the interstitium?
How is urea transported back to the interstitium from the thin segment of the ascending limb of Henle's loop?
How is urea transported back to the interstitium from the thin segment of the ascending limb of Henle's loop?
What is the name given to the transport of substances facilitated by the special arrangement of Henle’s loop and vasa recta?
What is the name given to the transport of substances facilitated by the special arrangement of Henle’s loop and vasa recta?
What is the maximum concentration of urine that human kidneys can produce compared to the initial filtrate formed?
What is the maximum concentration of urine that human kidneys can produce compared to the initial filtrate formed?
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