<prompt> In which pa of Henle loop is tubular fluid hypotonic with plasmaGFR?Thin descending limbThin ascending segmentlimb.Thick ascending segmentlimb.Thick descending segmentlimb.  <response>: Thick ascending segmentlimb.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. 