Ultrastructure of the digestive tract of Echinostoma revolutum cercaria.
The digestive tract of a fully formed free-swimming cercaria of Echinostoma revolutum (Froelich, 1802) Dietz, 1909 was studied by electron microscopy. The oral sucker and pharynx are covered by a tegument. The oesophagus and the caeca are not luminized. They are packed with giant epithelial cells with electron-dense granules of irregular shape, rough endoplasmic reticulum and its cisterns, and Golgi apparatus. The tegument of the oral sucker cavity contains numerous uniciliate receptors.
Zdárská
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Institute of Parasitology, Czechoslovak Academy of Sciences, Ceské Budĕjovice.
D000818:Animals; D004064:Digestive System / Q000648:ultrastructure; D004449:Echinostoma / Q000648:ultrastructure*; D008854:Microscopy, Electron; D012908:Snails