COUNTERCURRENT MAKESTHE OSMOTIC GRADIENT
300
450
600
750
900
1050
1200
1200
From
Proximal
Tubule
To Distal
Tubule
Cortex
Medulla
300
450
600
750
900
1050
1200
1200
100
250
400
550
700
850
1000
1000
Active
Sodium
Transport
Passive
Water
Transport
Long Loop
of Henle
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