Acid / base regulation Flashcards
1
Q
What is the most important buffer system in the ECF?
A
Bicarbonate buffer system
2
Q
What is the most important buffer system in the ICF?
A
Phosphate buffer system
3
Q
What is the most important buffer system in the renal tubules?
A
Ammonia buffer system
4
Q
What is secreted during ammonia buffering / bicarbonate reabsorption?
A
Ammonium ion
5
Q
How is glutamine used in the ammonia buffering system?
A
Glutamine metabolized in proximal tubule to bicarbonate (reabsorbed) and ammonium ion NH4 (excreted)
