This post is showing the urea transport in the S1 segment of the proximal tubule. 50% of the filtered urea is reabsorbed in the proximal tubule. the mechanism of the reabsorption at this level is solvent drag. As water is reabsorbed via the paracellular route, the urea is dragged with it

Previous Posts in this Series

Renal Tubular Transport #1. S1 Segment, Proximal Tubule. Sodium Transport 1 (Sodium/Hydrogen Ion Transport) (2nd Edition)

Renal Tubular Transport #2. S1 Segment, Proximal Tubule. Sodium Transport 2 (Sodium/Phosphate Transport) (2nd Edition)

Renal Tubular Transport #3. S1 Segment, Proximal Tubule. Sodium Transport 3

Renal Tubular Transport #4. S1 Segment, Proximal Tubule. Sodium Transport 4

Renal Tubular Transport #5. S1 Segment, Proximal Tubule. Sodium Transport 5

Renal Tubular Transport #6. S1 Segment, Proximal Tubule. Sodium Transport 6

Renal Tubular Transport #7. S1 Segment, Proximal Tubule. Sodium Transport 7

Renal Tubular Transport #8. S1 Segment, Proximal Tubule. Sodium Transport 8

Renal Tubular Transport #9. S1 Segment, Proximal Tubule. Potassium Transport 1

Renal Tubular Transport #10. S1 Segment, Proximal Tubule. Potassium Transport 2

Renal Tubular Transport #11. S1 Segment, Proximal Tubule. Calcium Transport 1

Renal Tubular Transport #12. S1 Segment, Proximal Tubule. Water Transport 1

Renal Tubular Transport #13. S1 Segment, Proximal Tubule. Magnesium Transport 1

Renal Tubular Transport #14. S1 Segment, Proximal Tubule. Glucose Transport 1

Renal Tubular Transport #15. S1 Segment, Proximal Tubule. Phosphate Transport 1

Renal Tubular Transport #16. S1 Segment, Proximal Tubule. Organic Anion Transport 1

Renal Tubular Transport #17. S1 Segment, Proximal Tubule. Neutral Aminoacid Transport 1

Renal Tubular Transport #18. S1 Segment, Proximal Tubule. Cationic Aminoacid Transport 1

Renal Tubular Transport #19. S1 Segment, Proximal Tubule. Anionic Aminoacid Transport 1

Renal Tubular Transport #20. S1 Segment, Proximal Tubule. Uric Acid Transport 1