Morphological and Scanning Electron Microscopy Studies of the Stomach of the Egyptian Fruit Bat (Rousettus aegyptiacus)

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Mohamed M. A. Abumandour & William Pérez


This study was performed to investigate the histomorphological characters of the Egyptian fruit bat stomach using the light and scanning electron microscope. The stomachs of fourteen adult normal healthy Egyptian fruit bats of both sexes were used. Stomach was tubular with an elongated fundic part and a long narrow pyloric part. Internally, the superficial epithelium was disposed in filiform form, the longitudinal rugaes extended throughout the length of the stomach, their numbers were high but they were thin and branched in the fundic region, while in the cardiac and pyloric region reached to 3 or 4 thick longitudinal and not branched rugaes. Under the scanning electron microscopy, we found differences in the appearance of middle part with the peripherical part of the fundic region, like the appearance of honeycomb buildings in the middle part different to round elevated formations at the periphery of fundic region. At high magnification of cardiac region, there was an aggregation of epithelial cells without regular shape, while there were elevated mountains areas in the pyloric region. We concluded that the stomachs of Egyptian fruit bat had special characters different to other mammals.

KEY WORDS: Anatomy; Chiroptera; Digestive system; SEM.

How to cite this article

ABUMANDOUR, M. M. A. & PÉREZ, W. Morphological and scanning electron microscopy studies of the stomach of the Egyptian fruit bat (Rousettus aegyptiacus). Int. J. Morphol., 35(1):242-250, 2017.