Xenbase Image ID: 133227

Figure 1. Histology of the developing Xenopus laevis foregut and respiratory system. A: Xenopus laevis embryos images at different developmental stages from Nieuwkoop and Faber (1994). B: Schematic illustrations of the foregut region of the embryo at the indicated developmental stages. Endoderm is yellow and respiratory endoderm is blue. C–Q: Hematoxylin/eosin stained sections of the developing foregut / respiratory system / lungs at the indicated stages; plane of section is indicated in (B) and endoderm is outlined by dashed yellow line in C–H. Abbreviations: alv, alveolar sac; cart, cartilage; eso, esophagus; fge, foregut endoderm; h, heart; lb, lung bud; lpm, lateral plate mesosderm; ltg, laryngo-tracheal groove nc, notochord; pa, pulmonary artery; phx, pharynx; pv, pulmonary vein; sp, septae; tr, trachea. Scale bar = 0.1 mm or 0.5 mm as indicated.Download figure to PowerPoint Image published in: Rankin SA et al. (2015) Copyright © 2015. Image reproduced with permission of the Publisher, John Wiley & Sons. Larger Image Printer Friendly View

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