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      Articles written in Proceedings – Animal Sciences

    • Observations on the anatomy, histology and histochemistry of the stomach of the vespertilionid batMiniopterus schreibersii (Kuhl)

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      Both the openings of the stomach ofMiniopterus schreibersii are directed cranially and the fundus is large and rounded. The longitudinal layer of muscles is thin but the circular layer is thick particularly at the apex of the fundic caecum. In addition to the usual types of cells, namely pepsinogen cells, parietal cells, surface mucous cells and neck mucous cells, a new type of cell, the interstitial cell of the gastric mucosa, which stains intensely pink with PAS, has been identified for the first time in the gastric glands. In general there is a predominance of neutral mucins particularly in the pyloric region where blebs of mucus are seen to ooze out into the lumen. Acidic mucins are present in moderate amounts in the surface mucous cells at the apex of the fundic caecum.

    • Anatomy, histology and some aspects of histochemistry of the stomach in two primitive microchiroptera

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      The two openings of the stomach lie parallel to each other in both the species since the gastroduodenal junction is directed craniad. The fundic caecum ofTaphozous longimanus forms a distinct chamber due to the presence of shelves, one projecting from the dorsal side and the other from the ventral side. The cardiac glands ofTaphozous longimanus are unique and composed almost entirely of mucous secreting cells. These glands ofRhinopoma kinneari have very deep foveolae. Pepsinogen cells are abundant in the fundicregion of the stomach of both the species. There is no pepsinogen cell in the transitional zone and the pyloric glands contain mostly mucous secreting cells. The interstitial mucous cells of the cardiac glands and a part of the cranial half of the fundic caecum inRhinopoma kinneari contain acidic sulphated mucins. The histochemical characteristics of the gastric glands in the two bats have been described.

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