Which system is responsible for waste removal from the blood?

• A. Urinary System
• B. Lymphatic System
• C. Muscular System
• D. Nervous System

Answer: (A)

The urinary system is primarily responsible for the removal of waste products from the blood. This system includes the kidneys, ureters, bladder, and urethra. The kidneys filter the blood, removing waste materials and excess substances, which are then excreted as urine. By maintaining the balance of water, electrolytes, and other compounds in the body, the urinary system plays a critical role in homeostasis. Its action helps to regulate blood pressure, pH levels, and overall fluid balance, ensuring that waste does not accumulate in the blood, which could lead to various health issues.

In contrast, the lymphatic system is mainly involved in immune function and the transport of lymph, while the muscular system is responsible for movement and stability. The nervous system coordinates bodily functions but does not play a direct role in waste removal.