ID#: 11647
Caption:
This scanning electron microscopic (SEM) image revealed, a circular lesion on the mucosal microvillous surface of an intestinal epithelial cell on the left, which was a result of the tight adhesion produced by the ventral adhesive disk of a Giardia sp. protozoan. The Giardia trophozoite responsible for the lesion on the right, is seen lying on its dorsal surface in this figure, thereby, revealing the circular ventral adhesive disk. Each small circular profile under the protozoan represents the rounded tip of a single microvillous, and it is estimated that 2000 to 3000 microvilli cover the surface of a single intestinal epithelial cell.
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Content Provider(s): CDC/ Dr. Stan Erlandsen
Creation Date: 1999
Photo Credit: Dr. Stan Erlandsen
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.