[The ultrastructure of the epithelial endocrinocytes of the appendiceal mucosa in the human fetus].
An electron microscope study of the epithelium of vermiform processes of 11-26 week old human fetuses showed seven types of endocrinocytes differing in ultrastructure and dimensions of secretory granules. In addition to the six known types of endocrinocytes (EC, D, D1, I, L and P), endocrinocytes of a 7th type were discovered which are beyond the International classification of endocrinocytes of the gastroenteropancreatic system. The overwhelming majority of endocrinocytes of the vermiform process epithelium form EC-cells. Besides, cells of a "mixed" type, both exo-endocrine and endo-endocrine cells, were revealed.
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D001078:APUD Cells / Q000145:classification / Q000648:ultrastructure*; D001065:Appendix / Q000196:embryology / Q000648:ultrastructure*; D004848:Epithelium / Q000196:embryology / Q000648:ultrastructure; D005865:Gestational Age; D006801:Humans; D007413:Intestinal Mucosa / Q000196:embryology / Q000648:ultrastructure*; D008854:Microscopy, Electron
Ul'trastruktura éndokrinotsitov épiteliia slizistoĭ obolochki cherveobraznogo otrostka ploda cheloveka.