Morphology and respiratory function of the alveolar unit.
D002196:Capillaries / Q000033:anatomy & histology; D003238:Connective Tissue / Q000033:anatomy & histology; D006801:Humans; D008855:Microscopy, Electron, Scanning; D011650:Pulmonary Alveoli / Q000166:cytology / Q000502:physiology* / Q000648:ultrastructure; D011659:Pulmonary Gas Exchange; D011663:Pulmonary Surfactants / Q000502:physiology; D012119:Respiration
D011663:Pulmonary Surfactants