 |
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
||||||||||||
 |
 |
 |
 |
 |
|
||||||||
 |
 |
 |
|
||||||||||
 |
 |
|
|||||||||||
 |
|
||||||||||||
 |
 |
 |
 |
|
|||||||||
 |
 |
|
|||||||||||
 |
 |
 |
|
||||||||||
 |
 |
 |
 |
|
|||||||||
Chapter 9. Renal acid-base handling
Previous Chapter Next Chapter Self-Assessment for this chapter
Keypoints
- Bicarbonate is freely filtered and then reabsorbed
- Hydrogen ions are secreted along the nephron.
- In the early nephron hydrogen ion secretion contributes to bicarbonate reabsorption.
- In the later nephron, hydrogen ion secretion contributes to net acid excretion.
- Acid is mainly excreted as NH4+ and as hydrogen ions associated with other buffers
- Glutamine is metabolised in the proximal tubule cells to produce NH3 which enters the tubular fluid
Self-Assessment Questions for this Chapter
Go direct to answers and explanations