Abstract
The first stage of lung development, which encompasses the first half of intrauterine life, consists of elaboration of a system of branching tubules derived from a bud arising from the endodermal tube, the branches being widely separated by the mesenchyme that proliferates simultaneously with the endodermal derivatives (Fig. 1; Table 1). The second stage begins at about midpregnancy and continues until after birth. It consists of vascularization of the tubular framework accompanied by progressive reduction in the intervening mesenchyme (Fig. 2).
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(2005). Respiratory System. In: Gilbert-Barness, E., Debich-Spicer, D.E. (eds) Handbook of Pediatric Autopsy Pathology. Humana Press. https://doi.org/10.1385/1-59259-673-8:251
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DOI: https://doi.org/10.1385/1-59259-673-8:251
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