@article{oai:niigata-u.repo.nii.ac.jp:00010590,
 author = {小林, 貞夫},
 issue = {10},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Oct},
 note = {Considerable effort has been expended to understand the basic animal system structures. We have retrieved structural information, mainly on the chicken (fowl, 烏骨鶏), Cottus, Anguilla, and Paralichthys esophagogastric mucosal junctions. Previously, we argued that the Esophagogastric Mucosal junction (EG junction) forms the ectoderm-endoderm boundary^<1)2)>. If vertebrate gills are considered to be homologous to invertebrate gills, they could be ectodermal in both cases. Furthermore, while the trachea, lungs, and air sac are respiratory organs, they are also considered to be important for gravity balance^<3)4)>. In addition to fins, shark, Cottus, and Paralichthys have saclike organs for balance, which are symmetrical to the head. These organs are closely related to the Lorenzini's organ^<5)> and are speculated to be an important Bauplan for gravity balance^<6)>; further, they are considered to be ectodermal in origin. The Anguilla swim bladder duct emerges from the EG junction. Accordingly, the site up to the EG junctions including the swim bladder can be of ectodermal origin, The Cottus epithekium, pharynx, and esophagus goblet cells differ in size, distribution, and high iron diamine-alcian blue (HID-AB) stainability compared to those of the intestinal tract, differing in germ layer origin. Anguilla swim bladder subepithelium is rich in vessels and is important for respiration. Vertebrate gills are functionally identical to invertebrate gills; the figure26 shows an oversimplified gill position representation. Treating the esophagogastric mucosal junction as the ectoderm-endoderm boundary helps better understand the common Bauplan in more vertebrates and invertebrates.},
 pages = {527--536},
 title = {食道・胃粘膜接合部の胚葉起源について : 追加報告},
 volume = {123},
 year = {2009}
}