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Bioengineering 6000 CV Physiology

Kidney

Transport Systems: Prototype

Internal, 

Interstitial 

space (basal 

surface)

External, 
Lumen 
(apical 
surface)

ATP

ADP

Bioengineering 6000 CV Physiology

Kidney

Transport Systems: Specific Example

• ATPase removes Na

+

 and absorbs K

+

 

• K

+

 diffuses and crosses into tubular lumen through 

special channels

• Net K transporter, driven by ATP-ase

Net K

+

Comments:

Overview of Renal Function

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