The lung as a reservoir for fluid.
D000818:Animals; D001158:Arteries; D001826:Body Fluids; D002196:Capillaries; D004285:Dogs; D006801:Humans; D008168:Lung / Q000166:cytology / Q000502:physiology*; D008208:Lymphatic System; D011650:Pulmonary Alveoli / Q000378:metabolism; D014680:Veins