CVS Practice Test

Magnesium plays a crucial role in regulating several physiological processes, including the balance of electrolytes in the body. One key aspect of magnesium's influence is its relationship with potassium and calcium. Magnesium is necessary for the proper transport and function of potassium in cells, helping to maintain normal levels of this important electrolyte, which is critical for muscle function and heart health.

Additionally, magnesium is involved in the regulation of calcium levels. It helps to control the release of parathyroid hormone, which in turn regulates calcium homeostasis. A deficiency in magnesium can lead to an increase in calcium levels, affecting bone health and potentially leading to conditions like osteoporosis.

This interaction between magnesium, potassium, and calcium highlights the interdependent nature of electrolytes in maintaining homeostasis. The other options, while involving electrolytes, do not capture the direct influence magnesium has specifically on potassium and calcium levels.