loop of henle transport

unit 4 week 13 lesson 4

descending loop of henle transport

• water is mostly reabsorbed here

• both the luminal and basolateral membranes have water channels (aquaporin ||) for water reabsorption

what is the favourable gradient for water movement due to

a favourable gradient for water movement is due to the increasing concentration of the extracellular fluid in the medulla of the kidney as the nephron loop descends past the cortex

no paracellular reabsorption in this tubule segment as the tight junction proteins expressed maintain close cell-to-cell interactions. 

ascending loop of henle transport

• no water reaborption bc no water channels, its stuck in lumen

• ion reabsorption of na, cl, k

beep

boop