Parasitology after quizzes Flashcards
The definitive host of a parasite is
Where the mature form of the parasite occurs.
Which of the following is a ‘dead-end’ parasite of humans?
Acanthamoeba
Which of the following parasites is NOT generally microscopic in its mature form, even though microbiologists usually study them?
Helminths
Why are parasites understudied?
Not many parasite are deadly & we know how to prevent and treat these infections
Which of these are included in the field of study know as Parasitology
Some types of worms, biting insects, & infectious protozoans
Not pathogenic bacteria
The largest nematode parasite of humans is
Ascaris lumbricoides
Which of the following is the most common parasitic worm in the United States?
Enterobius vermicularis
The parasites classified as Nematodes
Are known as roundworms
Which of the following regarding all of the tapeworms that infect humans is TRUE?
They all have non-human intermediate hosts
Why are many common helminth infections self-limited in duration?
Most prevalent worms do not replicate in the body
Which of the following is transmitted by the fecal-oral route?
Entamoeba histolytica
The presence of active motile multi-flagellated trophozoites in vaginal or urethral secretion is indicative of infection with
Trichomonas vaginalis
Severe frothy diarrhea with a “rotten-egg” smell accompanied by abdominal pain, bloating, and fever are signs and symptoms consistent with
GIardiasis
Humans become infected with Toxoplasma gondii primarily by
Ingesting meat containing the parasite.
Cycles of fever which recur every 48 hours is characteristic of
Malaria
