The smallest anatomical unit of the lung, measuring 0.50 to 2.00 cm in diameter. Each lobule is composed of 4-8 terminal bronchioles and their distal alveolar ducts and sacs. The lobules are separated by fibrous interlobular septa. [ ncithesaurus:Pulmonary_Lobule ]
Synonyms: lobulus pulmonis
This is just here as a test because I lose it