Lungs are to the respiratory system as the spleen is to the

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The spleen is part of the lymphatic system, which helps to maintain fluid balance, fight off infections and diseases, and remove cellular waste. The lungs are part of the respiratory system, which is responsible for the exchange of gases between the body and the environment. The urinary system is responsible for filtering waste and excess fluid from the body, the digestive system breaks down food and absorbs nutrients, the cardiovascular system circulates blood throughout the body, and the muscular system enables movement and supports the body's structure.

Lungs Are to the Respiratory System as the Spleen Is