Which organs are part of the urinary system?

Which organs are part of the urinary system?

• A. Heart, lungs, blood vessels
• B. Kidneys, ureters, bladder, urethra
• C. Brain and spinal cord
• D. Liver and gallbladder

Answer: (B)

The urinary system is the body’s excretory pathway, focused on removing waste and regulating water and electrolytes. The kidneys, ureters, bladder, and urethra fit this role perfectly: kidneys filter the blood to form urine, the ureters move that urine to the bladder, the bladder stores it, and the urethra carries urine out of the body. Other listed organs belong to different systems—heart, lungs, and blood vessels are part of the circulatory system; brain and spinal cord are part of the nervous system; liver and gallbladder are part of the digestive system. So the set that aligns with waste removal and urine transport is kidneys, ureters, bladder, and urethra.

The urinary system is the body’s excretory pathway, focused on removing waste and regulating water and electrolytes. The kidneys, ureters, bladder, and urethra fit this role perfectly: kidneys filter the blood to form urine, the ureters move that urine to the bladder, the bladder stores it, and the urethra carries urine out of the body. Other listed organs belong to different systems—heart, lungs, and blood vessels are part of the circulatory system; brain and spinal cord are part of the nervous system; liver and gallbladder are part of the digestive system. So the set that aligns with waste removal and urine transport is kidneys, ureters, bladder, and urethra.