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The Cardiogastric Gland and Alimentary Tract of Caenolestid Marsupials
Author(s) -
Richardson K. C.,
Bowden T. A. J.,
Myers P.
Publication year - 1987
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1987.tb00877.x
Subject(s) - stomach , biology , curvatures of the stomach , argentaffin , lumen (anatomy) , anatomy , gastric glands , gastric mucosa , marsupial , gastric chief cell , small intestine , pathology , zoology , microbiology and biotechnology , endocrinology , medicine , biochemistry
The stomach of the South American marsupial family Caenolestidae has a gland on its lesser curvature around the cardia. This cardiogastric gland is bi‐lobed, typically 11times5 mm and bears a distinctive, highly folded mucosa which forms sac‐like invaginations. These open into the stomach lumen via 40–60 slit‐like orifices. The gland mucosa contains unbranched gastric glands which are considerably longer than those of other gastric glands present elsewhere in the stomach. The cells within the cardiogastric gland show intense eosinophilic staining properties, with the parietal cells being larger than those found in other regions of the stomach, as well as being arranged in clusters. Argentaffin cells are not present in the stomach mucosa. The gross morphology of the stomach and intestine is similar to that found in small carnivorous marsupials.