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
+