Alveolar clearance.
D000818:Animals; D001980:Bronchi / Q000502:physiology; D002923:Cilia / Q000502:physiology; D006801:Humans; D008196:Lymph / Q000502:physiology; D008264:Macrophages / Q000502:physiology; D010587:Phagocytosis; D011650:Pulmonary Alveoli / Q000502:physiology*; D011653:Pulmonary Diffusing Capacity