Which body system includes the kidneys?

Which body system includes the kidneys?

• A. Urinary system
• B. Endocrine system
• C. Digestive system
• D. Nervous system

Answer: (A)

The kidneys are part of the urinary system. This system, which includes the kidneys, ureters, bladder, and urethra, is primarily responsible for filtering the blood, producing urine, and regulating fluid, electrolyte, and acid-base balance in the body. That focus on filtration and waste elimination is what defines the urinary system, making it the correct choice. The endocrine system centers on hormone-secreting glands, the digestive system handles digestion and nutrient absorption, and the nervous system coordinates signaling and control; while the kidneys interact with these systems, they aren’t classified under them.

The kidneys are part of the urinary system. This system, which includes the kidneys, ureters, bladder, and urethra, is primarily responsible for filtering the blood, producing urine, and regulating fluid, electrolyte, and acid-base balance in the body. That focus on filtration and waste elimination is what defines the urinary system, making it the correct choice. The endocrine system centers on hormone-secreting glands, the digestive system handles digestion and nutrient absorption, and the nervous system coordinates signaling and control; while the kidneys interact with these systems, they aren’t classified under them.