Assertion: bronchus's lung | /r/HasProperty | formation of new alveoli
Facets:
Source sentences:
text: Lungs — formation of new alveoli occurs post-natally to a considerable extent in all mammals• the endoderm-lined bronchial tree grows into; the mesoderm forms thecartilage, fascia, smooth muscle, vessels, and the visceral pleura coating of the lung• initially, bronchiole-lung branches are solid cores of cells growing into mesoderm similar to theway exocrine glands grow, eventually the branches must become hollow• continued branching of the bronchial tree results in lung tissue occupying more and more of thepleural cavity, resulting in pleural cavity excavation and expansion into somatic mesoderm ofthe body wall• terminal bronchiole branches give rise to alveolar sacs, featuring endoderm as a thin epithelium;finally, alveoli are created by the formation of septae that partition the alveolar sacs•