This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Osm declines up loop. Active transport of Na+ continues "squeezing" out Na+. 4 Distal tubule: ..Osm as low as 100 mOsm. ..H 2 O perm. regulated 5 Collecting duct: ..perm to H 2 O ..H 2 O returns to urine at top ..descent through environment ...... of increasing Osm H 2 O driven out by osmosis...
View Full Document