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

Here, I show the different types of potassium channels that exist in a proximal tubular cell, based on their conductance and in their apical or basolateral locations. I am also showing the Na+/K+ ATPase, which introduces potassium into the cell. The channels allow potassium to leave the cell.

Apical

• 200 pS
• 30-42 pS
• 63 pS

Basolateral

• 50-63 pS
• 12 pS
• 30-41 pS

Renal Tubular Transport #1. S1 Segment, Proximal Tubule. Sodium Transport 1

Renal Tubular Transport #2. S1 Segment, Proximal Tubule. Sodium Transport 2

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