Gaseous diffusion in the lungs.
D002196:Capillaries / Q000502:physiology; D002245:Carbon Dioxide / Q000502:physiology; D004058:Diffusion; D004912:Erythrocytes / Q000502:physiology; D005740:Gases; D006801:Humans; D008168:Lung / Q000502:physiology*; D008566:Membranes / Q000502:physiology; D008954:Models, Biological; D009584:Nitrogen / Q000502:physiology; D010100:Oxygen / Q000502:physiology; D011650:Pulmonary Alveoli / Q000098:blood supply; D012123:Pulmonary Ventilation; D012119:Respiration
D005740:Gases; D002245:Carbon Dioxide; D009584:Nitrogen; D010100:Oxygen