Lymphatic system: The lymphatic system helps to drain fluid and waste products from the lungs, which can help to prevent infection and other problems.
Musculoskeletal system: The muscles of the chest and abdomen help to move air in and out of the lungs.
Nervous system: The nervous system controls the muscles of the respiratory system and helps to regulate breathing rate and depth.
Immune system: The immune system helps to protect the respiratory system from infection.