What is one of the primary functions of a healthy kidney?

A healthy kidney plays a crucial role in the removal of waste products from the bloodstream, which is one of its primary functions. The kidneys filter blood to eliminate toxins and excess substances, including urea, creatinine, and various electrolytes, which are then excreted as urine. This filtration process is essential for maintaining the body's fluid and electrolyte balance, contributing to homeostasis.

In addition to waste removal, kidneys also regulate blood pressure and electrolyte levels, but the cornerstone of their function is to manage waste products effectively. This ensures that harmful substances do not accumulate in the body, which could lead to various health issues. Understanding this key function of the kidneys is essential for recognizing their importance in overall health and bodily function.