How do the lungs manage air exchange? The lungs contain countless little air sacs called alveoli, which are in charge of transferring oxygen into the blood. All through each breath, air trips through the airways and reaches these structures, wherever it enters flow and helps areas through the body. Successful air trade involves variable lung tissues, obvious air articles, and strong respiratory muscles. When any part of this process becomes restricted, the human body might obtain less air, which can affect levels of energy, energy, and everyday activities.