Regulation of extracellular potassium is not particularly important because only about two percent of the total body potassium is in the extracellular fluid.

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While it is true that only about two percent of the total body potassium is in the extracellular fluid, regulation of extracellular potassium is actually very important for maintaining proper cellular function and preventing cardiac arrhythmias. Even small fluctuations in extracellular potassium levels can have significant effects on nerve and muscle cells. Therefore, the body has multiple mechanisms in place to regulate extracellular potassium levels, including through the kidneys, gastrointestinal tract, and cellular uptake and release.

Regulation of Extracellular Potassium Is Not Particularly Important Because Only