Which of the following is not a function of the kidneys?

Step 1: Define the Problem

Identify which option does not describe a function of the kidneys.

Step 2: Break Down the Problem

List common functions of the kidneys:

• Filtration of blood to remove waste products
• Regulation of electrolyte balance
• Regulation of blood pressure
• Production of hormones like erythropoietin

Step 3: Apply Relevant Concepts

Understand the primary roles of the kidneys in the human body, which include excretion, regulation, and hormone production.

Step 4: Analysis, Verify and Summarize

Compare the given options with the known functions of the kidneys to identify the one that does not match.

Final Answer

The option that does not describe a function of the kidneys is the correct answer. Please provide the options for further analysis.