Abstract
The alimentary tract ofadult Egyptian liver fluke Fasciola gigantica was studied by light and transmission electron microscopy, the intestinal caecum was found to be com posed of a single layer o( epithelial cells, which contain numerous organelles such as mitochondria, well-developedgranular endoplasmic reticulum, few secretory gransules, and prominent nuclei, each containing a single nucleolus. The apical surface lifthe gut has numerous elongate lamellae extending into the lumen lif the caecum. It was pro posed that the intestinal epithelium has both secretory and absorptive fimctions. The localization of both carbohydrates and proteins within the intestinal cells lif the fluke was also demonstrated. Results were discussed and compared with other studies on di genetic trematodes.
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