title: [V. M. Shimkevich's principle of methorisis and its relation to the evolutionary dynamics of the esophageal epithelium of fish].
abstract: In 31 species of Teleostei and Chondrostei a possibility to apply the principle of methorisis (displacement of borders between embryonic germs and, respectively, between their tissue derivatives) to the epithelial layer of the esophagus in these vertebrates has been considered. Appearance of the esophageal capillary networks is connected with the phenomenon of displacement. It is noted that food does not evidently affect directly the esophageal epithelium. Simultaneously, peculiarities in the structure of the esophageal epithelium of some Teleostei and Chondrostei are observed.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002196:Capillaries; D004032:Diet; D004848:Epithelium; D004947:Esophagus / Q000033:anatomy & histology* / Q000098:blood supply / Q000196:embryology; D005399:Fishes / Q000033:anatomy & histology*; D013045:Species Specificity
vernacular_title: Printsip metorizisa V. M. Shimkevicha i ego sviaz' s évoliutsionnoĭ dinamikoĭ épiteliia pishchevoda ryb.