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Acid–Base Balance

Description
The pH of arterial blood ranges from 7.35 to 7.45. Several mechanisms maintain this range.
- Buffer systems
- Exhalation of carbon dioxide
- Kidney excretion of H+


Buffer systems include:
- Protein buffer system: most abundant in intracellular fluid and blood plasma. When pH rises, the COOH group dissociates to act like an acid.
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