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Fig. 2 | EvoDevo

Fig. 2

From: Morphogenesis and morphometric scaling of lung airway development follows phylogeny in chicken, quail, and duck embryos

Fig. 2

Morphometric analysis of lungs as a function of developmental time (Hamburger–Hamilton stage) in chicken, quail, and duck embryos. Shown are (ad) number of secondary bronchi in each species. e Schematic of the relative positions of the secondary bronchi (b1, b2, and b3) as a function of the length of the primary bronchus (L), as measured from the point of the tracheal bifurcation (T). Using this framework, we measured (f) L and (g, h) the relative positions of secondary bronchi in chicken, quail, and duck lungs. Shown are mean ± SD

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