Which factor contributes to the formation of a vertical gradient of salt in the medulla?
Understand the Problem
The question is asking about the factors that contribute to the formation of a vertical gradient of salt in the medulla of the kidneys. This relates to renal physiology and how different mechanisms within the nephron affect salt concentration.
Answer
The countercurrent multiplier effect and urea recycling.
The countercurrent multiplier effect primarily driven by the reabsorption of NaCl in the thick ascending limb of Henle's loop and urea recycling contributes to the formation of a vertical gradient of salt in the medulla.
Answer for screen readers
The countercurrent multiplier effect primarily driven by the reabsorption of NaCl in the thick ascending limb of Henle's loop and urea recycling contributes to the formation of a vertical gradient of salt in the medulla.
More Information
The countercurrent multiplier system in the kidneys allows for efficient reabsorption of water and salts, critical for maintaining the body's osmotic balance.
Sources
- Renal physiology: Counter current multiplication - Khan Academy - khanacademy.org
- Mammalian urine concentration: a review of renal medullary ... - pmc.ncbi.nlm.nih.gov
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