Biology 546
Human parasitology laboratory tutorial

The flagellates on the left were found in a vaginal smear of a female student (obviously) who complained of vaginitis. The trophozoites measured about 25 micrometers long x 17 micrometers wide. What species do they represent?

Giardia lamblia
Pentatrichomonas hominis
Trichomonas tenax
Trichomonas vaginalis

Original; photograph by S. J. Upton

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Kansas State University | Biology Division