Which of the following systems includes the bladder, urethra, kidneys, and ureters?

The urinary system consists of the bladder, urethra, kidneys, and ureters, which work together to produce, store, and eliminate urine from the body. The kidneys filter waste products from the blood to form urine, which is then transported via the ureters to the bladder for storage. When the bladder is full, urine is expelled through the urethra during urination. This system plays a crucial role in maintaining the body’s fluid balance, electrolyte levels, and overall homeostasis.

The other systems mentioned do not encompass these specific organs or functions. The cardiovascular system consists of the heart and blood vessels, focusing on transporting blood and nutrients. The respiratory system includes organs involved in gas exchange, such as the lungs and trachea. The nervous system comprises the brain, spinal cord, and nerves that control bodily functions and responses. Each of these systems has distinct roles, making the urinary system the correct choice for this question.