Physiology
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Boundless Anatomy and Physiology
Body Fluids and Acid-Base Balance
Physiology Textbooks Boundless Anatomy and Physiology Body Fluids and Acid-Base Balance
Physiology Textbooks Boundless Anatomy and Physiology
Physiology Textbooks
Physiology

Section 4

Acid-Base Balance

Book Version 29
By Boundless
Boundless Anatomy and Physiology
Physiology
by Boundless
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4 concepts
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pH, Buffers, Acids, and Bases

Acids dissociate into H+ and lower pH, while bases dissociate into OH- and raise pH; buffers can absorb these excess ions to maintain pH.

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Chemical Buffer Systems

Chemical buffers such as bicarbonate and ammonia help keep blood pH in the narrow range compatible with life.

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Regulation of H+ by the Lungs

Acid-base imbalances in blood pH can be altered by changes in breathing to expel more CO2, which will raise pH back to normal.

The Role of the Kidneys in Acid-Base Balance

The kidneys help maintain acid-base balance by excreting hydrogen ions into the urine and reabsorbing bicarbonate from the urine.

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