title: PULMONARY MECHANISMS. RESPIRATORY UNITS.
mesh_terms: D000715:Anatomy; D006652:Histological Techniques; D006653:Histology; D006801:Humans; D007223:Infant; D008168:Lung; D010827:Physiology; D011650:Pulmonary Alveoli
keywords: ANATOMY; HISTOLOGY; INFANT; LUNG; PHYSIOLOGY; PULMONARY ALVEOLI