In which pa of Henle loop is tubular fluid hypotonic with plasma/GFR?
Correct Answer: Thick ascending segment/limb.
Description: Thick ascending segment/limb.REABSORPTION IN THICK ASCENDING LIMB:Water reabsorption:Totally impermeable to water.Ascending segment also referred "Diluting" segment:Due to sodium & solute absorption without water.Resulting in tubular fluid dilution.Hence, Tubular fluid is hypotonic.Sodium, Potassium & Chloride reabsorption:By "Secondary active transpo" Through Na2+-K+-2Cl-- carrier transpoer.Transpos one Na2+, one K+, & two Cl-.Active sodium absorption occurs.30% filtered Na2+ reabsorbed.
Category:
Physiology
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