Quiz: para (trematoda)

1- Medical parasitology study include:

A a- protozoa B b- helminthes C c- arthropods D d- all of the above

2- Parasitism is:

A a- Both sides benefit. B b- One side benefits, the other loses. C c- Both sides loose. D d- One side benefits and the other is not affected.

3- An ectoparasite:

A a- Must be permanent parasite. B b- Must be temporary parasite. C c- Must be flying. D d- Non of the above.

4- A facultative Parasite means that it:

A a- Needs 2 hosts. B b- Can live inside the host. C c- Needs one host only. D d- Does not harm its host.

5- An obligate Parasite means that it:

A a- Must live inside the host. B b- Does not harm its host. C c- Needs 2 hosts at least. D d- Must have a host.

6- A pseudoparasite is:

A a- Must have a host. B b- Must live inside the host. C c- Does not harm its host. D d- A particle mistaken for a parasite.

7- Coprozoic parasites means that it is:

A a- A parasite living in the host. B b- Found in a non ordinary habitat in the body. C c- Must have a host. D d- A foreign body found in the specimen.

8- An incidental parasite means that it:

A a- Lives in a non ordinary host for it. B b- Must have a host. C c- A particle mistaken for a parasite. D d- Found in a non ordinary habitat in the body.

9- The reservoir host means that it:

A a- Harbors the larval stages. B b- Is an arthropod carrying theinfection. C c- Is an animal infected with the parasite. D d- Is a person carrying the parasite and is not symptomatised.

10- The vector is a:

A a- Host not affected by the parasite. B b- Snail intermediate host. C c- Parasite of the skin. D d- An arthropod responsible for transmitting the infection.

11- Congenital transmission is present in:

A a- Toxoplasma gondii. B b- Giardia lamblia. C c- Trypanosoma brucei D d- Cryptosporidium parvum.

12- Soil can infect humans with with parasites like:

A a- Schistosoma sp. B b- Dicrocilium denderiticum. C c- Heterophyes Heterophyes. D d- Ancylostoma duodenale.

13-An erratic parasite is:

A a- A parasite living in an unusual host. B b- A parasite living in the unusual habitat. C c- A mass seen in the sample that could be mistaken for a parasite. D d- A non pathogenic species that has passed through the alimentary tract.

14-The state when one of the organisms is benefited while the other is not affected called :

A A-Parasitism B B-Mutualism C C-Commensalism D D-Symbiosis

15- An opportunistic parasite is that what:

A a- Needs 2 hosts. B b- Fulminate in an immunocompromised host. C c- Widely and easily spreads. D d- Is found in an unusual host.

16- Phylum platyhelminthes includes :

A A-Trematoda and cestoda B B-Cestoda and nematoda C C-Trematoda and nematoda D D-Non of the above

17-Schistosomal cercaria may cause:

A a- Bather’s itch. B b- Ground itch. C c- Wakana disease (young green disease). D d- larva currens

18-Redia stage is not present in the life cycle of:

A a- Dicrocilium dendriticum. B b- Schistosoma japonicum. C c- Fasiolopsis buski. D e- All the above.

19- The excretory system of trematodes is based on:

A a- Glomrular system B b- Germ cells C c- Vitelline cells D d- Flame cells.

The cercaria of fasciola is :

A A-Lophocercous cercaria B B-Leptocercous cercaria C C-Microcercous cercaria D D-Cercariaium without a tail

The following is true regarding Trematodes EXCEPT:

A a) All are hermaphrodites except Schistosoma. B b) Without body cavity. C c) They are ectoparasites. D d) Commonly known as Flukes

Trematodes are hermaphrodites except:

A a- Schistosoma. B b- Fasciola. C c- Heterophyes. D d- Dicrocilium.

Eggs of trematodes are operculated except:

A a- Schistosoma. B b- Fasciola. C c- Heterophyes. D d- Dicrocilium.

The following trematode does not form redia during its life cycle:

A a- Schistosoma. B b- Fasciola. C c- Heterophyes. D d-Fasciolopsis.

The following trematode does not form encysted metacercaria during its life cycle:

A a- Schistosoma. B b- Fasciola. C c- Heterophyes. D d-Fasciolopsis.

Adult Fasciola worms live in:

A a- Liver parenchyma. B b- Liver cells. C c- Bile ducts. D d- Small intestine.

Bile ducts are the habitat of:

A a- Schistosoma. B b-Fasciola. C c-Heterophyes. D d-Dicrocilium.

In acute fascioliasis ,there is :

A a-enlarged liver. B b-anorexia. C c-fever. D d- all of the above.

Fasciola hepatica differ than Fasciola gigantic in:

A a-the size and shape of the adult. B b-egg size. C c-intermediate host. D d- all of the above.

The small intestine is the habitat of:

A a- Schistosoma mansoni. B b-Fasciola. C c-Heterophyes. D d- Dicrocilium dendriticum.

Eggs are born unembryonated from the adults in case of:

A a- Schistosoma mansoni. B b-Fasciola. C c- Heterophyes. D d- Schistosoma japonicum.

Eggs are born embryonated from the adults in case of:

A a- Fasciola gigantica. B b-Fasciola hepatica. C c- Heterophyes. D d- Fasciolopsis.

A person is infected by Fasciola through:

A a- Eating infected fresh vegetables. B b- Penetration of the skin. C c- Eating raw or undercooked liver. D d- Eating raw or undercooked fish.

Acute fascioliasis is caused by:

A a- Adult Fasciola in the liver parenchyma. B b- Adult Fasciola in the bile ducts. C c- Juvenile Fasciola in the liver parenchyma. D d- Juvenile Fasciola in the bile ducts.

Acute fascioliasis is diagnosed by all the following except:

A a- Fever. B b- Eosinophilia. C c- Passage of eggs. D d- Enlarged tender liver.

Chronic fascioliasis is accurately diagnosed by:

A a- Fever. B b- Eosinophilia. C c- Finding eggs in feces. D d- Enlarged tender liver.

The 1st intermediate host of Heterophyes heterophyes is:

A a- Lymnea caillaudi. B b- Pirenella conica. C c- Zebrina. D d- Formica fusca.

Halzoun is caused by :

A a-juvenil Fasciola. B b-lingatula cirrata. C c-both of the above. D d-bird schistosomes.

The 2nd intermediate host of Heterophyes heterophyes is:

A a- Lymnea caillaudi. B b- Sheep. C c- Telapia nilotica. D d- Formica fusca.

The habitat of Heterophyes heterophyes is:

A a- Bile ducts. B b- Small intestine. C c- Liver parenchyma. D d- Superior mesenteric plexus.

The 2nd intermediate host of Heterophyes heterophyes is:

A A- Lymnea caillaudi. B B- Sheep. C C- Mugil cephalus. D D- Formica fusca.

Schistosoma japonicum infection is endemic in:

A A- Japan. B B- China C C- South Africa. D D- Egypt.

Schistosoma mansoni adults live in:

A a- Vesicle plexus of veins. B b- Inferior mesenteric vein tributaries. C c- Superior mesenteric vein tributaries. D d- Liver parenchyma.

Schistosoma haematobium adults live in:

A a- Vesicle plexus of veins. B b- Inferior mesenteric vein tributaries. C c- Superior mesenteric vein tributaries. D d- Liver parenchyma.

Schistosoma japonicum adults live in:

A a- Vesicle plexus of veins. B b- Inferior mesenteric vein tributaries. C c- Superior mesenteric vein tributaries. D d- Liver parenchyma.

The intermediate host of Schistosoma japonicum is:

A a- Bolinus truncates. B b- Biomphalaria alexandrina. C c- Lymnea cailliaudi. D d- Oncomelania.

Bather's itch is caused by:

A a- Schistosoma japonicum. B b- Schistosoma mansoni. C c- Bird Schistosoma. D d- Schistosoma haematobium.

In case of Bather's itch:

A a- Infection stops at the skin. B b- Infection stops at the liver. C c- Infection continues until copulation between the 2 sexes. D d- Infection continues until maturation.

In case of hepatic schistosomiasis there may be all of the below except:

A a- Liver cirrhosis. B b- Liver hypertrophy. C c- Cerebral schistosomiasis. D d- Liver schistosoma polyps.

In case of splenic schistosomiasis there may be all of the below except:

A a- Spleen cirrhosis. B b- Spleen hypertrophy. C c- Cerebral schistosomiasis. D d- Portal hypertension.

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