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49 Cards in this Set
- Front
- Back
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All Nematodes are parasites.
a. True b. False |
False
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Which of the following is a leaf-shaped unsegmented flatworm?
a. Cestoda b. Nematoda c. Trematoda |
Trematoda
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An intermediate host is one in which the __ stage of a worm lives.
a. adult b. larva c. metacercaria d. trophozoite e. vector |
larva
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Which of the following is generally diagnosed in humans by examining a blood sample?
a. Caenorhabditis elegans b. Necator americanus c. Trichinella spiralis d. Echinococcus granulosus e. Wuchereria bancrofti |
Wuchereria bancrofti
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Which of the following in NOT a target for drugs used to treat infections with worms?
a. cell division b. folic acid synthesis c. metabolic function d. muscle function e. protein synthesis |
protein synthesis
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The larva of the trematode ___ mature in freshwater snails, then infect humans by burrowing into the skin.
a. Dipylidium caninum b. Fasciola hepatica c. Taenia saginata d. Taenia solium e. Shistosoma mansoni |
Shistosoma mansoni
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Infection with the nematode ___ results when the elongated oval eggs are ingested. A common symptom of infection is anal itching.
a. Ascaris lumbricoides b. Enterobius vermicularis c. Fasciola hepatica d. Necator americanus e. Trichinella spiralis |
Enterobius vermicularis
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Swine are the normal intermediate host, and humans are the definitive hosts for the cestode:
a. Dipylidium caninum b. Echinococcus granulosus c. Taenia saginata d. Taenia solium e. Trichinella spiralis |
Taenia solium
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The __ is transmitted fecal-orally. Symptoms of infection include abdominal pain, fever and vomiting.
a. Beef tapeworm b. Blood fluke c. Intestinal roundworm d. Hookworm e. Sheep liver fluke |
Intestinal roundworm
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Various mammals can be infected with the trematode __ which is acquired by ingestion.
a. Enterobius vermicularis b. Fasciola hepatica c. Necator americanus d. Schistosoma mansoni e. Wuchereria bancrofti. |
Fasciola hepatica
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A variety of mammals can be the host for the nematode ___, which is acquired by eating undercooked meat containing the encysted larva.
a. Ascaris lumbricoides b. Necator americanus c. Trichinella spiralis d. Taenia saginata e. Taenia solium |
Trichinella spiralis
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The cestode most commonly diagnosed in people in the US is:
a. Dipylidium caninum b. Echinococcus granulosus c. Taenia saginata d. Taenia solium e. Trichinella spiralis |
Taenia saginata
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Bare skin contact with soil contaminated with human feces may result in infection with the nematode:
a. Ascaris lumbricoides b. Enterobius vermicularis c. Necator americanus d. Trichinella spiralis e. Wuchereria bancrofti |
Necator americanus
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A hydatid cyst is the result of infection with the larval stage of the canine cestode:
a. Caenorhabditis elegans b. Dipylidium caninum c. Echinococcus granulosus d. Taenia saginata e. Taenia solium |
Echinococcus granulosus
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The nematode parasite ___ does NOT produce eggs and is transmitted by a vector.
a. Ascaris lumbricoides b. Enterobius vermicularis c. Caenorhabditis elegans d. Wuchereria bancrofti e. Trichinella spiralis |
Wuchereria bancrofti
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The most common helminth parasite in the U.S.A. is:
a. pinworm. b. hookworm. c. trichina worm d. beef tapeworm e. blood fluke f. intestinal roundworm. |
pinworm
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Dogs are the definitive host for the cestode ___, fleas are the intermediate host, and humans may be accidental hosts.
a. Caenorhabditis elegans b. Dipylidium caninum c. Echinococcus granulosus d. Trichinella spiralis e. Taenia saginata f. Both B and C |
Dipylidium caninum
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Which of the following helminth diseases is routinely treated by surgery?
a. trichinellosis b. hydatidosis c. cysticercosis d. Bancroft's disease e. snail fever |
hydatidosis
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Thoroughly cooking meat is an effective way to prevent infection with:
a. Trichinella spiralis b. Taenia saginata c. Taenia solium d. All of these. e. None of these. |
All of these
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Secondary pneumonia infections sometimes result from heavy infections with the nematode:
a. Ascaris lumbricoides b. Enterobius vermicularis c. Trichinella spiralis d. Echinococcus granulosus e. Wuchereria bancrofti |
Ascaris lumbricoides
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Tapeworms are generally transmitted by:
a. consumption of an intermediate host. b. consumption of the definitive host. c. consumption of the adult tapeworms d. vectors such as mosquitos. e. direct penetration of the skin. |
consumption of an intermediate host.
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The most common helminth infection in the world is with:
a. Ascaris lumbricoides b. Fasciola hepatica c. Taenia saginata d. Trichinella spiralis e. Wuchereria bancrofti |
Ascaris lumbricoides
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A good strategy for reducing infection with ____ is to treat human sewage properly.
a. Enterobius vermicularis b. Ascaris lumbricoides c. Trichinella spiralis d. Wuchereria bancrofti e. All of these. |
Ascaris lumbricoides
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Which of the following human diseases is due to infection with the larval stage of a parasitic worm, rather than the adult stage?
a. cysticercosis b. hydatidosis c. trichinellosis d. All of the above. e. None of the above |
all the above
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Humans can be accidental intermediate hosts for:
a. Fasciola hepatica. b. Echinococcus granulosus. c. Taenia solium. d. Shistosoma mansoni. e. Both B and C. f. All of the above |
Echinococcus granulosus.
Shistosoma mansoni. |
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Protozoa which are non-motile are members of the:
a. Amoeba/Sarcodina. b. Apicomplexa/Sporozoa. c. Ciliophora. d. Flagellates/Mastigophora |
Apicomplexa/Sporozoa.
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The mosquito is the vector for the Apicomplexan/Sporozoan ___, which invades both human liver and red blood cells, causing a disease characterized by fever, chills and anemia.
a. Acanthamoeba b. Balantidium coli c. Cryptosporidium parvum d. Giardia intestinalis e. Plasmodium malariae f. Toxoplasma gondii |
Plasmodium malariae
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The sand fly is the vector for the Flagellate/Mastigophoran __ which produces serious lesions of the skin or mucous membranes.
a. Trichomonas tenax b. Balantidium coli c. Giardia intestinalis d. Leishmania e. Acanthamoeba |
Leishmanina
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Human disease can be reduced by vaccinating dogs against infection with:
a. Balantidium coli. b. Entamoeba histolytica. c. Giardia intestinalis. d. Leishmania. e. Trypanosoma cruzi. |
Giardia intestinalis
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The intestinal Apicomplexan/Sporozoan ___ causes a zoonosis spread by the fecal-oral route and is considered a major cause of diarrheal disease.
a. Cryptosporidium parvum b. Balantidium coli c. Giardia intestinalis d. Entamoeba histolytica e. Toxoplasma gondii |
Cryptosporidium parvum
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The Kinetoplastid/Mastigophoran ___ is transmitted by the kissing bug and causes a potentially fatal chronic infection.
a. Acanthamoeba b. Giardia intestinalis c. Cryptosporidium parvum d. Trypanosoma cruzi e. Trichomonas tenax |
Trypanosoma cruzi
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Both humans and pigs can be infected with the Ciliophoran ___, resulting in diarrhea which may contain blood.
a. Balantidium coli b. Cryptosporidium parvum c. Giardia intestinalis d. Toxoplasma gondii e. Both b and c |
Balantidium coli
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Ingestion of the Apicomplexan/Sporozoan ___ may result in asymptomatic infection in healthy people, but can lead to death of immunocompromised persons and fetuses.
a. Toxoplasma gondii b. Cryptosporidium parvum c. Entamoeba histolytica d. Plasmodium e. Trichomonas vaginalis |
Toxoplasma gondii
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The Parabasala/Flagellate ___ has no cyst stage, is a parasite of human oral cavities and is transmitted in saliva.
a. Toxoplasma gondii b. Trypanosoma cruzi c. Trichomonas vaginalis d. Trichomonas tenax e. Tryinghard toremember. |
Trichomonas tenax
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Keratitis can result from placing contact lenses contaminated with the Amoeba/Sarcodina ___ into the eye.
a. Acanthamoeba b. Entamoeba histolytica c. Plasmodium d. Leishmania e. Trichomonas vaginalis |
Acanthamoeba
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Which of the following can cross the placenta to infect a developing fetus?
a. Entamoeba histolytica b. Plasmodium c. Toxoplasma gondii d. Trichomonas vaginalis e. Both a and d. f. Both b and c |
Toxoplasma gondii
Trichomonas vaginalis |
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Examination of a stool sample under a microscope is useful in diagnosing
a. ciliate dysentery b. keratitis c. malaria d. toxoplasmosis e. trichomoniasis |
ciliate dysentery
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The Parabasala/Flagellate ___ has no cyst stage, is a parasite of humans only and is transmitted as an STD.
a. Toxoplasma gondii b. Trichinella spiralis c. Trichomonas vaginalis d. Trypanosoma cruzi e. Tryinghard toremember |
Trichomonas vaginalis
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The Amoeba/Sarcodina ___ is a true pathogen of humans which causes amoebic dysentery in humans that can occasionally progress to severe extraintestinal disease (“amoebiasis”).
a. Acanthamoeba b. Entamoeba histolytica c. Giardia intestinalis d. Leishmania e. Nagleria fowleri |
Entamoeba histolytica
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The definitive hosts for Plasmodium vivax are:
a. cats. b. birds. c. humans. d. mosquitoes. e. pigs |
mosquitoes
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The early symptoms of ___ are diarrhea with flatulence. As the disease progresses, the individual may suffer weight loss, muscle aches and headaches.
a. balantidiosis b. giardiasis c. leshmaniasis d. toxoplasmosis e. trypanosomiasis |
giardiasis
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Which of the following is a zoonosis?
a. amoebic dysentery b. ascariasis c. blackwater fever d. American trypanosomiasis e. both A and B. |
American trypanosomiasis
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Which of the following can be contracted by eating undercooked meat of intermediate host animals?
a. Acanthamoeba b. Cryptosporidium parvum c. Entamoeba histolytica d. Toxoplasma gondii e. Trichomonas tenax |
Toxoplasma gondii
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Invasion of the internal organs by the vector transmitted Kinetoplastid __ results in potentially fatal disease.
a. Plasmodium b. Toxoplasma gondii c. Giardia intestinalis d. Trypanosoma cruzi e. Leishmania |
Leishmania
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Fever, chills and anemia are signs and symptoms of:
a. malaria b. visceral leshmaniasis c. American trypanosomiasis d. trichomoniasis e. giardiasis f. Both A and B |
malaria
visceral leshmaniasis |
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The disease __ is fatal in the absence of treatment because the parasite has a genetic trick that allows it to evade the immune system.
a. amoebic dysentery b. blackwater fever c. Chaga's disease d. amoebic encephalitis e. toxoplasmosis |
Chaga's disease
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The term for the sexual reproductive phase of the Apicomplexa/Sporozoa is:
a. encystment. b. excystment. c. schizogony. d. syngamy. e. binary fission. |
syngamy
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A clinical sign of parasitic infection common to most parasite infections is:
a. vomiting. b. eosinophilia. c. edema. d. diarrhea. e. anemia. |
eosinophilia.
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Which of the following parasitic diseases is a leading killer (among the top ten) among infectious diseases worldwide?
a. ascariasis b. cryptosporidiosis c. malaria d. leshmaniasis e. taeniasis |
malaria
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