When the pH of the extracellular fluid drops, the

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When the pH of the extracellular fluid drops, it means that the fluid becomes more acidic. In response, the kidneys will excrete more hydrogen ions to reduce the acidity of the blood. Additionally, the kidneys will also excrete fewer bicarbonate ions since they are basic and can bind with hydrogen ions to form carbonic acid, which then breaks down into water and carbon dioxide. Therefore, the kidneys' response to low extracellular pH is to excrete more hydrogen ions and fewer bicarbonate ions in order to help restore a proper pH balance.

When the PH of the Extracellular Fluid Drops, the