Asked by: Romaine Elgarrestaasked in category: General Last Updated: 24th June, 2020
Why is the descending loop of Henle thinner than the ascending loop of Henle?
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Accordingly, what is the difference between ascending and descending loop of Henle?
The thin descending limb has low permeability to ions and urea, while being highly permeable to water. The loop has a sharp bend in the renal medulla going from descending to ascending thin limb. The thick ascending limb is impermeable to water, but it is permeable to ions.
Subsequently, question is, why is the ascending loop of Henle thick? Thick ascending limb The medullary ascending limb is largely impermeable to water. Sodium (Na+), potassium (K+) and chloride (Cl−) ions are reabsorbed by active transport. This K+ "leak" generates a positive electrochemical potential difference in the lumen.
Subsequently, question is, what is the function of the descending loop of Henle?
This part of the nephron is called the loop of Henle. Its main function is to reabsorb water and sodium chloride from the filtrate. This conserves water for the organism, producing highly concentrated urine.
What happens to sodium and chloride in the ascending limb of the nephron loop?
The ascending limb (where loop diuretics work) is impermeable to water. NaCl is pumped from the tubule into the interstitium in the ascending limb. The tubular osmolarity decreases and fluid that leaves the loop is hypotonic. The collecting duct is impermeable to water without ADH.