Giardia muris, SEM

Giardia muris, SEM

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Credit: Centers for Disease Control and Prevention/SCIENCE PHOTO LIBRARY


Caption: Colour-enhanced Scanning Electron Micrograph (SEM) showing 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 0.15 microns in diameter. These microvilli cover the surface of each intestinal epithelial cell. 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.

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Keywords: abnormal, colorized, colour enhanced, colour-enhanced, condition, digestive system disease, disease, electron micrograph, em, false colour, gastrointestinal disease, giardia, giardia muris, giardiasis, histopathology, imaging, infection, infectious, intestinal disease, intestine, mastigophora, medical, micrograph, micrography, microvilli, organism, parasitic, pathology, protozoa, protozoan, rat intestine, sacromastigophora, scanning electron micrograph, science, sem, trophozoite, unhealthy

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