The endocrine cells of the proper gastric glands of adult ox.
Unlike histochemical analysis, which permits only the certain identification of "EC" cells, an ultrastructural study on the bovine proper gastric glands shows the presence of "EC" cells of the gastric type, "ECL" and "D1" cells with the usual characteristics of their respective secretory granules. There are besides other cells whose granules show morphological and cytochemical characters resembling those of the "X" cells. All these endocrine cells are lacking in luminal connection and appear to be sorrounded by a folding of the cytoplasm of one or two exocrine cells, the most commonly being the parietal cells. We cannot identify the "A" cells: their absence may be a morphological confirmation of the lack of extractable glucagon in bovine abomasum. The ultrastructural analysis, therefore, enables us to emphasize in this species a correspondence with the proper gastric glands of the monogastrics.
D000018:Abomasum / Q000166:cytology* / Q000648:ultrastructure; D000818:Animals; D002417:Cattle; D002469:Cell Separation; D002838:Chromaffin System / Q000648:ultrastructure*; D004759:Enterochromaffin Cells / Q000648:ultrastructure*