Which of the following is not a function of the urinary system?

• A. Production of red blood cells
• B. Regulation of blood pressure
• C. Maintenance of electrolyte balance
• D. Excretion of metabolic waste

Answer: (A)

Verified step by step guidance

1. Understand the primary functions of the urinary system: The urinary system is responsible for removing waste products from the body, regulating blood volume and blood pressure, controlling levels of electrolytes and metabolites, and regulating blood pH.
2. Identify the key components of the urinary system: The main organs involved are the kidneys, ureters, bladder, and urethra. Each plays a role in filtering blood, creating urine, and expelling it from the body.
3. Examine the options provided: Production of red blood cells, Regulation of blood pressure, Maintenance of electrolyte balance, Excretion of metabolic waste.
4. Analyze each option: Consider which functions are directly related to the urinary system. Regulation of blood pressure, Maintenance of electrolyte balance, and Excretion of metabolic waste are all functions of the urinary system.
5. Determine the outlier: Production of red blood cells is primarily a function of the bone marrow, stimulated by the hormone erythropoietin, which is produced by the kidneys but is not a direct function of the urinary system itself.