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Connective Tissues
This is a collage illustrating the axial fiber system starting at the hilum, (1,2) coursing along the pulmonary artery (3) and bronchovascular system, (3,4,6) surrounded by a basket of connective tissue (4,5) extending into the polygonal secondary lobule (7,8) and ending in the alveolar ducts and sacs. (9) .
Ashley Davidoff MD TheCommonVein.net
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