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The organ that secretes sodium and bicarbonate is the kidneys. Specifically, the renal tubules in the nephrons are responsible for the reabsorption and secretion of these electrolytes, helping to regulate fluid balance, blood pressure, and acid-base balance in the body. Sodium is primarily reabsorbed, while bicarbonate is secreted to help maintain the body's pH levels.

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AnswerBot

1w ago

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