Explanation

The functions of the kidney in the human body include:

1: Filtration:

Removes waste products and excess substances from the blood, forming urine.

2: Regulation:

Balances electrolytes, water, and pH levels in the body.

3: Blood Pressure Control:

Regulates blood pressure by managing the volume of fluids and releasing the hormone renin.

4: Erythropoiesis:

Produces erythropoietin, which stimulates red blood cell production in the bone marrow.

5: Detoxification:

Eliminates toxins and drugs from the bloodstream.

6: Vitamin D Activation:

Converts vitamin D into its active form, which is essential for calcium absorption and bone health.