Water Reabsorption Flashcards
0
Q
How is water absorbed
A
Medulla made hyperosmotic by:
Reabsorption of Na in ascending limb
Reabsorption of Urea in the CT and ascending limb
1
Q
Main site of water reabsorption
A
PCT
2
Q
Main site of variable water reabsorption
A
Descending limb
3
Q
Explain counter current multiplication
A
Urea up taken into earlier portion of the tubule, same proportion taken out but from a greater amount
4
Q
Describe how water is taken out of the interstitium
A
Taken by vasa recta which runs in opposite direction the tubule to maintain the gradient
