yes they are.
Oxygenation of blood
The lymphatic system. Excess interstitial fluid is drained from tissue spaces and returned to the blood.
Respiratory system
Heart: Circulatory system. Lungs: Respiratory system.
The lungs are the main organ of the respiratory system, but they are also an organ in the circulatory system.
The respiratory system. The alveoli are air sacs in the lungs.
The lungs belong to the respiratory system.
No. Your Lungs are part of your respiratory system, not you digestive system
In the breathing system, which supports the circulation system by giving oxygen to the hemoblobin in the blood.
The lungs are part of the respiratory system (breathing)
The lungs connect to and are a part of the respiratory system.
The lungs belong to the Respiratory System.