Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content


This digitally-colorized scanning electron microscopic (SEM) image revealed the ventral surface of a Giardia muris trophozoite that had settled atop the mucosal surface of a rat’s intestine. Note the microvilli, which can be seen in the background, as tiny rounded structures that are approximately 0.15µm in diameter. The Giardia's ventral adhesive disk resembles a suction cup, where overlapping microtubules in the cytoplasm form a number-6-shaped figure. The edge of the suction cup, called the ventrolateral flange, partially encircles the adhesive disk and is absent posteriorly where a ventral pair of flagella emerges from above, dorsal to the disk. Giardia muris has four pairs of flagella that are responsible for the organism’s motility. The adhesive disk facilitates adherence to the intestinal surface.
High Resolution: Click here for hi-resolution image (3.05 MB)
Content Providers(s):CDC/ Dr. Stan Erlandsen
Creation Date:1999
Photo Credit:Dr. Stan Erlandsen
CDC Organization
Skip Navigation Links.

Skip Navigation Links.
Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.