Respuesta :
When the kidney secretes hydrogen ions, it primarily reabsorbs sodium ions. Sodium is the primary cation of the extracellular fluid, and the kidneys are responsible for maintaining the balance of sodium and other electrolytes in the body.
In addition, the kidneys also reabsorb other electrolytes, such as potassium, calcium, and chloride, although the degree of reabsorption varies depending on the type of electrolyte.The kidneys play a vital role in the regulation of the body’s acid-base balance. When the kidney secretes hydrogen ions, it primarily reabsorbs sodium ions. Sodium is the primary cation (positively charged ion) in the extracellular fluid, and the kidneys are responsible for maintaining the balance of sodium and other electrolytes in the body.
The kidneys reabsorb approximately 95% of the filtered sodium ions. This process is important for preserving the body’s total body sodium, since any loss of sodium can lead to dehydration. In addition, the kidneys also reabsorb other electrolytes, such as potassium, calcium, and chloride, although the degree of reabsorption varies depending on the type of electrolyte.
For example, potassium is reabsorbed to a lesser extent than sodium. The kidneys conserve potassium by reabsorbing up to 80% of the filtered load. Calcium and chloride are reabsorbed in lower amounts than sodium and potassium, but still play a significant role in the maintenance of electrolyte balance.
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