Parasitology

Topics: Parasites, Apicomplexa, Digenea Pages: 9 (1695 words) Published: June 18, 2013
Choose the one best response to questions as follow:
The miracidial hatching test helps to demonstrate the viability of: B •eggs of Taenia species.
eggs of Schistosoma species.
eggs of hookworm species.
eggs of Opisthorchis.
After India ink injection, the gravid proglottids of which cestode contain seven to thirteen branches on each side? B •Taenia saginata
Taenia solium
Diphyllobothrium latum
Dipylidium caninum
A parasitic infection that may be diagnosed by the examination of concentrated sputum is: A •paragonimiasis.
amebiasis.
trichinosis.
filariasis.
Examination of stool specimens would not be effective for the identification of: D •Trichuris trichiura.
Ascaris lumbricoides.
Strongyloides stercoralis.
Trichinella spiralis.
5. The incorrect match between organism and the appropriate diagnostic procedure is: C A.Onchocerca volvulus - examination of skin snips
B. Cryptosporidium - modified acid fast stain
C. Echinococcus granulosus - routine ova and parasite examination D.Schistosoma haematobium -- examination of urine sediment 6. Eating poorly cooked pork can lead to an infection with: A A. Taenia solium and Trichinella spiralis

B. Taenia saginata and Hymenolepis nana
C. Trichuris trichiura and Hymenolepis diminuta
D. Diphyllobothrium latum and Ascaris lumbricoides
7.The adult tapeworm of Echinococcus granulosus is found in the intestine of: C A. Humans
B. Sheep
C. Dogs
D. Cattle
8. In infections with Taenia solium, man can serve as the: C A. definitive host
B. intermediate host
C. definitive and/or the intermediate host
D. none of the above
9.When humans have cystic hydatid disease, the causative agent and host classification are: A a.Echinococcus granulosus - accidental intermediate host.
b.Echinococcus granulosus - definitive host.
c.Taenia solium - accidental intermediate host.
d.Taenia solium - definitive host.
10.A helminth egg is described as having terminal polar plugs. The most likely helminth would be: B A.Hookworm
B.Trichuris trichiura
C.Fasciola hepatica
D.Dipylidium caninum
11. A helminth egg is described as having a thick radially striated shell and the shell contains a six-hooked embryo called the oncosphere. This egg is: D A.Hookworm
B.Schistosoma spp.
C.Strongyloides stercoralis
D.Taenia spp.
12. A freshwater snail is always a part of the life cycle in which of the following groups? B A.Cestodes
B.Trematodes
C.Filarial worms
D.Intestinal nematodes
13. Children at day care centers in the United States have a high rate of infection with which one of the following? C A. Ascaris lumbricoides
B. Entamoeba histolytica
C. Enterobius vermicularis
D. Necator americanus

14. The main anatomic location of Schistosoma mansoni adult worms is: B A. Lung alveoli
B. Intestinal venules
C. Renal tubules
D. Bone marrow

15. Each of the following parasites has an intermediate host as part of its life cycle EXCEPT: A A. Trichomonas vaginalis
B. Taenia solium
C. Echinococcus granulosus
D. Toxoplasma gondii

16. Which one of the following protozoa primarily infects macrophages? B A. Plasmodium vivax
B. Leishmania donovani
C. Trypanosoma cruzi
D. Trichomonas vaginalis

17. In malaria, the form of plasmodia that is transmitted from mosquito to human is the: A A. Sporozoite
B. Gametocyte
C. Merozoite
D. Hypnozoite

18. Each of the following parasites is transmitted by flies EXCEPT: A A. Schistosoma mansoni
B. Onchocerca volvulus
C. Trypanosoma gambiense
D. Loa loa

19. Each of the following parasites is transmitted by mosquitoes EXCEPT: A A. Leishmania donovani
B. Wuchereria bancrofti
C. Plasmodium vivax
D. Plasmodium falciparum

20. Pigs or dogs are the source of human infection by each of the following parasites EXCEPT: C A. Echinococcus granulosus
B. Taenia solium
C. Ascaris lumbricoides
D. Trichinella spiralis...
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