What forces keep the air spaces of the lung dry?
D001834:Body Water / Q000502:physiology*; D005110:Extracellular Space / Q000502:physiology; D006706:Homeostasis; D006801:Humans; D008954:Models, Biological; D009997:Osmotic Pressure; D011650:Pulmonary Alveoli / Q000502:physiology* / Q000503:physiopathology; D011654:Pulmonary Edema / Q000503:physiopathology; D011663:Pulmonary Surfactants / Q000502:physiology
D011663:Pulmonary Surfactants