اسئله كتاب الشيخ heliminthology Flashcards by A M

Symbiosis is

a- One organism causes harm to other

b- One organism is benefited and the other is unaffected

C-Essential association of two organisms and both are benefited

d- None of the above

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Facultative parasites are those

a- Exist in a host in which it does not ora.

b- Either free-living or parasitic c- Completely dependent upon its host

d- Remain all or most of its life in its host

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Obligatory parasite are those

a- Either free-living or parasitic

b- Occurs in one specific host

c- A free-living that may live as parasitic

d- Completely dependent upon its host

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Spurious parasite

a- Coprozoic parasite b- Temporary parasite

c- Incidental parasite

d- None of the above

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Opportunistic parasite are those

a- Produces disease in immunocompromised host

b- Produces disease in immunocompotent host

c- Exists in a host in which it does not ord

d- A free-living but seeks its host from time t

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Definitive host harbours a- Sexual stages

b- Asexual stages

c- Larval stage

d- Immature stage

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Reservoir host is

a- The host rather than man.

b- Harbours the parasite without being diseased

c- An additional source of human infection

d- All of the above

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Mode of parasitic infection is

a- Ingestion b- Injection

c- Autoinfection

d- All of the above

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The adult or sexually mature stage of the parasite occurs in

a- First intermediate host b- Final or definitive host

c- Second intermediate host

d- Insect vector

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10-The chief source of most parasitic diseases of man

a- Mosquitoes

b- Dog

c- Cattle

d- Man

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11-Commensal organisms are

a- Pathogenic

b- Non pathogenic

c- Free-living

d- Slightly pathogenic

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12-Trematoda includes the following EXCЕРТ

a- Hymenolepis nana

b- Fasciola hepatica

c- Heterophyes heterophyes

d- Paragonimus westermani

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13-Infective stage of Fasciola is

a- Encysted metacercaria on aquatic plants

b- Adult Fasciola in liver

c- Leptocercous cercaria

d- Lophocercous cercaria

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14-Fasciola gigantica differs from Fasciola hepatica in

a- The habitat in human body

b- The need of snail as intermediate host

c- The life cycle

d- Size

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15-Eggs of Heterophyes differ from eggs of Fasciola in

a- Colour

b- Operculated

c- Size

d- Shape

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16-The only snail which ingests the parasite egg is

a- Physa acuta

b- Pirenella conica

c- Lymnaea

d- Bulinus truncatus

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Snail intermediate host of Fasciolopsis buski is

Lymnaea cailliaudi

b- Lymnaea truncatula

Species of Melania

d- Species of Segmentina

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Fish transmits the following parasite

a- Fasciola gigantica

b- Taenia saginata

Dipylidium caninum

d- Heterophyes heterophyes

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19- The following Trematoda has no redia stage Schistosoma mansoni

b- Paragonimus westermani

Heterophyes heterophyes

d- Fasciolopsis buski

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The following parasites may affect the liver EXCEPT

Schistosoma mansoni

b- Hydatid cyst

Fasciolopsis buski

d- Toxocara canis

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Which of the following is not transmilted by fresh water fish

a- Heterophyes heterophyes b- Diphyllobothrium latum

Diphyllobothrium mansoni

d- Dracunculus medinensis

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Metagonimus yokogawai differs from Heterophyes heterophyes
A-in Small size

b- Has no genital sucker

C-cuticle covered with spines

d- All of the above

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Opisthorchis sinensis lives in

a- Bile ducts

b- Blood vessels of the liver

C-Intestines

d- Liver parenchyma

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Man gets infected with Opisthorchis through

a- Eating infected uncooked fish

b- Ingestion of eggs

C-Eating infected liver

d- Ingestion of encysted metacercaria on aquatic plant

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25- The largest parasitic trematode of human is

a- Opisthorchis sinensis

b- Fasciolopsis huski

c- Heterophyes heterophyes

d- Fasciola hepatica

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26- Worm abscesses are caused by

a- Schistosoma mansoni

b- Fasciola hepatica
C-Toxocara canis

d- All of the above

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Worm cysts are caused by

a- Metagonimus yokogawai

b- Fasciolopsis buski

C-Paragonimus westermani

d- Heterophyes heterophyes

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28- The following platyhelminths require one intermediate host EXCEPT

a- Fasciola hepatica

b- Schistosoma haematobium

C-Fasciolopsis buski

d- Diphyllobothrium latum

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Salt water fish acts as second intermediate host in

A-Diphyllobothrium latum

b- Metagonimus yokogawai

C-Heterophyes heterophyes

d- None of the above

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The following parasites pass operculate eggs EXCEPT

A-Paragonimus westermani

b- Capillaria philippinensis
c-Heterophyes heterophyes

d- Schistosoma mansoni

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The following platyhelminths require two intermediate hosts EXCEPT

A-Diphyllobothrium latum

b- Heterophyes heterophyes
c- Metagonimus yokogawal

d- Taenia solium

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The drug of choice for taeniasis solium is

a- Yomesan

b- Aterbrine
C-Hetrazan

d- Dichlorophenol

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Pernicious anaemia develops particulary in

A-Hookworm infection

b- Diphyllobothruim latum

C-Schistosomiasis

d- All of the above

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The following cestode larvae not present in man

A-Cysticercus bovis

b- Cysticercus cellulosae

c- Hydatid

d- Coenurus cerebralis

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Sedimentation method is used for the diagnosis of

a- Fascioliasis

b- Strongyloidiasis

C-Oxyuriasis
d- Schistosomiasis

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Dogs act as a definitive host for

A-Toxocara canis

b- Echinococcus granulosus

C-Multiceps multiceps

d- All of the above

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Herbivorous animals act as an intermediate host for the following parasites EXCEPT

a Multiceps multiceps

b- Taenia saginata

C-Echinococcus granulosus

d- Metagonimus yokogawai

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Retrofection occurs in infection with.

a- Strongyloides stercoralis

b- Taenia solium

C-Enterobius vermicularis

d- All of the above

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Exposure to canals water may result in

a- Ground itch

b- Creeping eruption
c- Bather’s itch

d- None of the above

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Which of the following parasites produces Katayama syndrome

Paragonimus westermani

b- Metagonimus yokogawai

C-Schistosoma heamatobium

d- Schistosoma japonicum

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41- The main agent of pathology in schistosomiasis is

a- Eggs

b- Living adult worms

c- Dead adult worms

d- All of the above

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Creeping eruption differs from swimmer’s itch in the following

a- Caused by Ancylostoma caninum

b- Occurs in soil

c- Systemic treatment
d- All of the above

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urinary bilharziasis, terminal haematuria occurs in

a- Stage of invasion

b- Stage of migration

c- Stage of egg extrusion

d- Chronic stage

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Bilharzial granuloma is due to

a- Toxin of parasite

b- Presence of eggs in tissues

c- Tissue damage and haemorrhage

d- Pulmonary hypertension

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Cancer bladder may occur in

a- Intestinal bilharziasis

b- Paragonimiasis

c- Fasciolopiasis

d- Urinary bilharziasis

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Snail intermediate host of Paragonimus is

a- Bulinus

b- Biomphalaria

C- Pirenella

d- Semisulcospira

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Paragonimiasis is diagnosed by the following EXCEPT

a- Sputum exam

b- Stool exam

c- Radiographs

d- Ultrasonography

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Cor pulmonale is caused by

a- Eggs of Schistosoma in the lung

b- Pulmonary hypertension

c- Enlargement of the right heart

d- All of the above

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49- Taenia saginata

a- Dog is the definitive host

b- Pig is the intermediate host

c- Inhabits the large intestine

d- Belongs to the order cyclophyllidae

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50- Hymenolepis nana is the commonest cestode because of

a- Eggs pass immature

b- Auto infection

C-inhabits the large intestine

d- The smallest tapeworm

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Fasciolopsis buski lives in

a- Bile ducts

b- Liver

c- Intestines
d- Lung

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52- Infection with Fasciolopsis buski is through

a- Skin penetration by cercaria

b- Ingestion of egg

c- Ingestion encysted metacercaria

d- Eating infected liver

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53- The association of fever, hepatomegaly and high eosinophil count is suggestive of

a- Fascioliasis b- Heterophyiasis

C-Fasciolopiasis

d- All of the above

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54- Snail intermediate host of Fasciolopsis buski is

A-Lymnaea cailliaudi b- Lymnaea truncatula

C-Species of Melania

d- Species of Segmentina

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55- Schistosomulum of schistosoma is

A -small cercaria

b- Cercaria without tail

C-Hatching from egg

d- Cercaria in the snail

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56- Schistosomulum matures to adult in

a- Subcutaneous tissue

b- Systemic circulation

C-Portal circulation

d- Pelvic plexuses of veins

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57- The choice drug for treatment of intestinal bilharziasis is

A-Praziquantel

b- Metrifonate

c- Niridazole

d- Niclosamide

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58- Taenia saginata scolex has the following EXCEPT
A- Globular in shape

b- Having 4 suckers for attachment

C-The presence of hooks

d- Attached to the mucosa of small intestine

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59- Egg is the infective stage of

a- Hymenolepis nana

b- Hymenolepis diminuta

c- Dipylidium caninum

d- Taenia saginata

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60- Cysticercus bovis is the infective stage of

a- Dipylidiam caninum

b- Hymenolepis diminuta c- Hymenolepis nana

d- Taenia saginata

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61- Cysticercoid larva is the infective stage of

A-Taenia saginata

b- Taenia solium

c- Dipylidium caninum

d- None of the above

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62- Csysticercus cellulosae is the infective stage of

a- Taenia solium

b- Taenia saginata

C-Hymenolepis nana

d- Hymenolepis diminuta

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Ingestion of eggs of Taenia saginata results in

a- Infection with adult worm

b- Cysticercosis

c- Sparganosis

d- None of the above

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64- Ingestion of eggs of Taenia solium results in

a- Cysticercosis

b- Coenurus cyst

C-Sparganosis d- None of the above

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The only operculated egg in cestoda belongs to

a- Taenia solium

b- Hymenolepis nana

c- Hymenolepis diminuta

d- Diphyllobothrium latum

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66- Infection with Diphyllobothrium latum is through

a- Ingestion of egg

b- Ingestion of Cyclops

c- Ingestion of salmon fish

d- Ingestion of pork muscle

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67- Autoinfection occurs in

a- Taenia saginata

b- Taenia solium

C-Diphyllobothrium latum

d- Hymenolepis diminuta

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68- Yomesan is contraindicated in treatment of

a- Taenia saginata

b- Teania solium

C-Diphyllobothrium latum

d- Dipylidium caninum

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69- The following are intestinal cestode of man EXCEPT

a- Taenia saginata

b- Taenia solium

d- Echinococcus granulosus

C-Hymenolepis nana

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70- The most common intermediate host for Echinococcus granulosus is

a- Man

b- Dog
C- Fox

d- Sheep

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71- For its development the egg of Hymenolepis diminuta must be ingested by

a- Suitable arthropod

b- Dog

C-Cat

d- Rat

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72- In hydatid disease, man is a blind host for the parasite as in

a- Trichiniasis b- Enterobiasis

c- Ascariasis

d- Taeniasis

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73- The second intermediate host of Diphyllobothrium latum is

a- Snail

b- Fresh-water fish

C-Copepod

d- Salt-water fish

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74- The gravid proglottid of Taenia saginata can be best differentiated from that of Taenia solium by the

A-Number of ova within the uterus.

b- Width of the proglottid

c- Length of the proglottid

d- Number of lateral uterine branches

75- The usual sites for the human tapeworms

A-Ileum, Jejunum b- Gall bladder

C-Appendix

d- Colon

76- All the intestinal cestodes of man inhabit

a- Small intestine

b- Large intestine

C-Small and large intestines

d- Rectosigmoid region

77- Ova and sometimes adult parasites in faeces are found in

A-Fasciola hepatica b- Heterophyes heterophyes

C-Hymenolepis nana

d. Ascaris lumbricoides

78- Rats act as a definitive host for

a- Hymenolepis nana

b- Hymenolepis diminuta

c- Trichinella spiralis

d- All of the above

79- Which of the following parasites is not transmitted by insects

a- Hymenolepis diminuta

b- Dipylidium caninum c- Guinea worm

d- Diphyllobothrium latum

80- Cyclops is the only larval host for

a- Diphyllobothrium latum

b- Diphyllobothrium mansoni

C-Dracunculus medinensis

d- All of the above

81- The geographical distribution of the following parasites is cosmopolitan, EXCEPT

a- Heterophyes heterophyes

b- Fasciola hepatica

C-Hymenolepis nana d- Ascaris lumbricoides

82- The eggs of the following parasites are infective to man when passed in the faeces EXCEPT

a- Taenia saginata

b- Taenia solium

C-Echinococcus granulosus

d- Enterobius vermicularis

83- The main symptom in urinary belharziasis is

A-Frank haematuria

b- Dysuria

C-Terminal haematuria

d- Chyluria

84- Rectal biopsy is of diagnostic value in

a- Ascariasis

b- Fascioliasis

c- Ancylostomiasis

d- Intestinal schistosomiasis

85- Bayluscide is used for

a- Treatment of schistosomiasis

b- Treatment of heterophyiasis
C-Snail control

d- Insect vector control

86- The commonest parasite causing nocturnal enuresis in children is

a- Ascaris lumbricoides

b- Ancylostoma duodinale

C-Hymenolepis nana

d- Enterobius vermicularis

The following parasites affect commonly children, EXCEPt

b- Schistosoma mansoni

A-Hydatid disease

C-Enterobius vermicularis

d- Hymenolepis nana

88- Intestinal obstruction may occur with

A-Ascaris lumbricoides

b- Fasciola gigantica
C-Schistosoma mansoni

d- Hymenolepis nana

89- Acute peritonitis may occur with
A-Schistosoma mansoni

b- Ascaris lumbricoides

C-Hymenolepis nana

d- Heterophyes heterophyes

90- The following parasites may cause appendicitis EXCEPT

A-. Taenia saginata

b- Schistosoma mansoni

C-Enterobius vermicularis

d- Trichuris trichiura

91- The following parasites are oviparous, EXCEPT

a- Ascaris lumbricoides

b- Trichuris trichiura

c- Enterobius vermicularis

d- Trichinella spiralis

91- The following parasites are oviparous, EXCEPT

a- Ascaris lumbricoides

b- Trichuris trichiura

c- Enterobius vermicularis

d- Trichinella spiralis

92- The following parasites are viviparous, EXCEPT

A-Trichinella spiralis

b- Dracunculus medinensis

c- Oxyuris vermicularis

d- Loa loa

93- The following helminthes have migratory cycle in the lung
a- Ancylostoma duodenale

b- Ascaris lumbricoides

C-Strongyloides stercoralis

d- All of the above

94- The following nematodes inhabit the small intestine EXCEPT

a- Anyclostotma duodenale

b- Ascaris lumbricoides

C-Strongyloides stercoralis

d- Trichuris trichiura

95- The following helminthes inhabit the caecum, EXCEPT

a- Pin-worm
b- Guinea-worm

C-Whip-worm

d- None of the above

96- Parasitic infection complicated by rectal prolapse is

A-Trichuriasis

b- Ascariasis

C-Ancylostomiasis

d- Strongyloidiasis

97- After ingestion of Enterobius eggs the larvae hatch in the

A-Stomach b- Duodenum

C-Jejunum

d- lleum

98- Child with oxyuriasis usually complains of
A-Itching

b- Insomnia

C-Enuresis

d- All of the above

99- The worm without cycle outside the body

a- Ascaris lumbricoides

b- Ancylostoma duodenale
C- Enterobius vermicularis

d- Trichuris trichiura

100- After ingestion of Ascaris eggs the larvae hatch in the
A- Stomach

b- Duodenum

C-Small intestine

d- large intestine

101- Enterobius vermicularis is treated with
A-Albendazole for 3 days

b- Mebendazole for 3 days.

C-Mebendazole for a single oral dose

d- Praziquantel for a single oral dose

102- The following parasites are acquired to man through consumption of infected raw vegetables EXCEPT

A-Hymenolepis nana

b- Toxocara canis
C-Trichuris trichiura

d- Trichinella spiralis

All of the following parasites may cause diarrhoae EXCEPT
A- trichuris trichiura
b- Hook worms

C-Fasciolopsis buski

d- Strongyloides stercoralis

104- Cyclops acts as intermediate host of

a- Dracunculus medinensis

b. Diphyllobothrium latum
C-Diphyllobothrium mansoni

d- All of the above

105- Acute pancreatitis may be caused by

A-Ascaris lumbricoides

B-Entrobius vermicularis

C-Ancylostoma duodenale

D-Trichuris trichiura

106- Scotch adhesive tape is used for diagnosis of

A-Enterobiasis

b- Trichuriasis

C-Ancylostomiasis
d- Strongyloidiasis

107- NIH swab is used for the diagnosis of

a- Ancylostomiasis

b- Oxyuriasis c- Ascariasis

d- All of the above

108- Trichuris trichiura belongs to

a- Trematoda

b- Cestoidea

C-Nematoda

d- None of the above

109- The following parasites belong to class Nematoda EXCEPT

a- Oxyuris vermicularis

b- Ancylostoma duodenale

C-Dipylidium caninum

d- Trichostrongylus colubriformis

110- Infection with Ancylostoma duodenale is through

a- Ingestion of egg b- Ingestion of Cyclops

C-Skin penetration by larva

d- None of the above

111- Stoll egg count technique is used
A-in Ascaris lumbricoides

b- Ancylostoma duodenale

C-Enterobius vermicularis

d- Trichuris trihiura

112- The portal of entery for the following parasites is the skin EXCEPT

a- Ancylostoma duodenale b- Strongyloides stercoralis

c- Schistosoma mansoni d- Trichostrongylus colubriformis

113- Ancylostoma duodenale inhabits.

a- Duodenum

b- Gall bladder

C-Small intestine

d- Large Intestine

114- The filariform larva of Ancylostoma

A-Scheathed

b- Non sheathed

C-Has positive geotropism d- Has negative histotropism

115- Ascaris pneumonitis is characterized by

A-Dyspnea

b- Cough
C- Eosinophilia

d- All of the above

116- Loeffler’s syndrome is due to

a- Allergic manifestation of adult Ascaris in lung

b- Inflammatory reaction around the larvae in lung

c- Migration of adult Ascaris

d- All of the above

Ascaris lumbricoides

A-Eggs require time to mature

b- Giant intestinal nematodes

C-Larva has migratory phase

d- All of the above

118- The fertilized egg of Ascaris

a- Barrel shaped

b- Colourless
C- Without mamillation

d- Immature when passed with faeces

119- Enterobius vermicularis

A Called pin worm b- Called whip worm

c- Larva has migratory phase

d- Eggs are laid immature

120- Trichuris trichiura

a- Called pin worm

b- Has migratory phase

C-Mature eggs passed with faeces

d- Inhabits caecum and adjacent parts

121- Egg of Trichuris trichiura

a- Barrel shaped

b- Brownish

C-Immature ovum

d- All of the above

122- Dysentery is caused by

a- Ascaris lumbricoides

b- Enterobius vermicularis

C-Diphyllobothrium latum

d- Trichuris trichiura

123- Geophagia is likely to be associated with

a- Taeniasis

b- Ancylostomiasis

C-Ascariasis

d- Trichuriasis

124- The following parasites lay eggs in the intestine EXCEPT

a- Ascaris lumbricoides

b- Enterobius vermicularis

C-Trichuris trichiura

d- Ancylostoma duodenale

125- Biopsy is used for the diagnosis of

a- Sparganosis

b- Cysticercosis
C-Trichinosis

d- All of the above

126- Necator americanus belong to

A-Trematoda

b- Cestoidea

C-Nematoda

d- Tape worms

127- Ancylostoma duodenale differs from Necator americanus in

a- Habitat

b- Life cycle

C-Treatment

d- Geographical distribution

128- Creeping eruption is caused by skin penetration of
a- Filariform larvae of Hook worms

b- Non human schistosomes cercariae

C-Strongyloides stercoralis larvae

d- Non human Hook worms larvae

129-Ancylostoma duodenale

a- Inhabits the large intestine

b- Infection by ingestion of eggs

C-Each female gives 200.000 eggs/day

d- Immature eggs pass in faeces

130-Egg of Ancyclostoma

a- Thin shelled

b- Translucent

c- Immature ovum

d- All of the above

131-Ancylostomiasis is treated with

a- Albendazole for 3 days

b- Mebendazole for 3 days

c- Mebendazole for a single oral dose

d- Yomesan for a single oral dose

132-The following helminthes may cause anaemia EXCEPT

A-Trichinella spiralis

b- Schistosoma

C-Diphyllobothrium latum

d- Hook worms

133-Cutaneous larva migrans resulting from exposure to the following parasite

a- Ancylostoma caninum

b- Ancylostoma duodenale

c- Necator americanus

d- None of the above

134-Albendazole is effective against

a- Cysticercosis

b- Hydatid disease

C-Trichuriasis

d- All of the above.

135-Man gets infection with the following diseases while walking bare-footed on infected soil EXCEPT

a- Schistosomiasis

b- Ancylostomiasis

c- Strongyloidiasis

d- Creeping eruption

136-The larvae of the following parasites may be recovered from the sputum EXCEPT

a- Hymenolepis nana

b- Ascaris lumbricoides

C-Ancylostoma duodenale

d- Strongyloides stercoralis

137- Visceral larva migrans is due to

b- Ingestion of eggs of Trichuris trichiura
C- Ingestion of eggs of Ascaris of dog and cat

a- Ingestion of eggs of human Ascaris

d- Ingestion of eggs of Enterobius vermicularis

138- Child with visceral larva migrans usually complains of

A-Enlarged tender liver

b- Pneumonitis and cough

C-Retinochoroiditis

d. All of the above

139- Liver biopsy is used for diagnosis of

a- Ancylostomiasis

b- Visceral larva migrans
C-Strongyloidiasis

d- Trichiniasis

140- Strongyloides stercoralis is named

a- Pin worm

b- Dwarf thread warm

C-Giant intestinal nematode

d- whip worm

141- Strongyloides stercoralis differs from Ancylostoma duodenale in

a- Autoinfection

b- Rhabditiform larvae in stool

C-Free living forms

d. All of the above

142- Strongyloides stercoralis infects man through

A-Ingestion of egg
b- Ingestion of filariform larva

C-Skin penetration by rhabditiform larva

d- Skin penetration by filariform larva

143- Strongyloides stercoralis larva changes to adult when

a- Soil conditions are favourable

b- Soil conditions are unfavourable

C-Temperature are unsuitable

d- None of the above

144- Disseminated strongyloidiasis occurs in

a- Malnutrition b- Serious illness

C-Treatment with immune- suppressive drugs

d- All of the above

145- Strongyloidiasis can be diagnosed by the following EXCEPT

a- Stool examination

b- Sputum examination

C-Serological tests
d- Ultrasonography

146- Infection with Trichostrongylus colubriformis is through

a- Ingestion of egg

b- Ingestion of filariform larva

c- Ingestion of encysted
d- Ingestion of rhabditiform larva

147- Egg of Trichostrongylus colubriformis differs from Ancylostoma egg in

a- Having a morula stage

b- Translucent

C-Oval and thin shelled

d- Immature

148- Filariform larvae of Strongyloides stercoralis differ from that of Ancylostoma in

a- No sheath

b- Notched tail

C-About ½ mm in length

d- All of the above

149- Parasite migration outside the body occurs in

a- Strongyloides stercoralis

b- Ancylostoma duodenale

C-Trichostrongylus colubriformis

d- Trichuris trichiura

150- Man gets infected with Trichinella spiralis on eating

a- Undercooked beef

b- Undercooked pork

c- Undercooked fish

d- Infected fleas

151- Infective stage of Trichinella spiralis is

a- Encysted metacercaria

b- Mature egg

C-Encysted larva

d- Filariform larva

152- Larva of Trichinella spiralis are carried to

A-Liver
B- Lung

C-Lumen of small intestine

d- Active striated muscles

153-The following methods are used in diagnosis of Trichinella spiralis EXCEPT

a- Bachman’s test

b- Blood

C- Urine

d- Muscle biopsy

154-In trichinosis the following stages are present EXCEPT

a- Skin penetration

b- Invasion

c- Larval migration

d- Encystation

155-Man gets infected with Capillaria philippinensis when eating

a- Undercooked pork

b- Undercooked fish

c- Undercooked beef

d- Infected liver

156-Egg of Capillaria philippinensis

a- Operculated
b- Peanut-shaped

C-Immature

d- All of the above

157-The following are used in diagnosis of Capillaria philippinensis EXCEPT

a- Eggs in stool

b- Hypoproteinaemia

c- Larvae in blood

d- Low blood calcium

158-Habitat of Dracunculus medinensis is

a- Small intestine

b- Large intestine

c- Lymph nodes

d- Subcutaneous tissues

159-Intermediate host of Dracunculus medinensis is

a- Snail

b- Flea

c- Cyclops
d- Cattle

160-The following drugs are used in treatment of Dracunculus medinensis EXCEPT

a- Metronidazole

b- Diethylcarbamazine

c- Niclosamide

d- Thiabendazole

161- The infective stage of Wughereria bancrofti is

a in thoracic muscles of mosquito a- Filariform larva in

b- Filariform larva in labium of mosquito
C- Microfilaria in blood

d- Microfilaria in lymphatic

162- The vector of Wuchereria bancrofti is

a- Culicine mosquito

b- Simulium

C-Mansonia
d- Chrysops

163- Microfilaria of Wuchereria bancrofti is

a- Sheathed

b- Posterior end full of nuclei

C-No periodicity

d- Ingested by Simulium

164- Microfilaria of Wuchereria bancrofti differs from microfileria of Loa loa in

A-Loose sheath

b- Gentle curves

C-No nuclei in posterior end

d- All of the above

165- Periodicity is a characteristic feature for the following microfilariae EXCEPT

b- Brugia malayi

A-Wuchereria bancrofti

C-Onchocerca volvulus

d- Loa loa

166- The adult worms of Wuchereria bancrofti are found in

A-Blood

b- Lymph nodes

c- Subcutaneous tissues

d- Muscles

167- Mode of transmission of Wuchereria bancrofti by female culex

a- Cyclodevelopmental
B- cyclopropagative
C- Mechanical

d- Transovarian

168- Onchocerca volvulus is called

a- Blinding worm
b- Eye worm

C-Thread worm

d- Guinea worm

169- Microfilaria of Onchocerca volvulus present in

品

a- Blood

b- Lymphatics

C-Subcutaneous

d- Serous cavity

170- Onchocerca volvulus is transmitted by

a- Culex

b- Simulium

c- Mansonia

d- Chrysops

171- River blindness is due to
A-Brugia malayi

b- Loa loa

C-Onchocerca volvulus

d- Mansonella ozzardi

172- The following are used in diagnosis of bancroftion filariasis EXCEPT

a- Blood

b- Biopsy of lymph nodes

C-Lymphangiography

d- Mazzotti test

173- Elephantiasis is caused by

a- Onchocerca volvulus

b- Wuchereria bancrofti

C-Loa loa

d- Mansonella perstans

174- Chyluria is caused by

a- Loa loa

b- Onchocerca volvulus
C-Wuchereria bancrofti

d- Mansonella ozzardi

175- Wuchereriasis is treated with

a- Albendazole b- Mebendazole

c- Diethylcarbamazine

d- Praziquantel

176- Blindness in onchocerciasis is due to

A-Invasion of eye with microfilariae

b- Invasion of eye with adult worm
C- Presence of adult worm in subcutaneous tissues

d- Allergic reaction

177- Onchocerciasis is treated with

a- Diethylcarbamazine

b- Ivermectin

c- Nodulectomy d- All of the above

178- The habitat of adult Loa loa is

a- Lymphatics

b- Blood

c- Serous cavity

d- Subcutaneous tissues

179- Calabar swelling differs from Onchocerca nodule in

a- Being present in subcutaneous tissues

b- Common in Tropical Africa

c- Being caused by tissue nematodes

d- Transient

180- Mazzotti test in onchocerciasis produces

a- Skin rash and fever within 24 hours.

b- Skin rash and fever within few days. c- Appearance of microfilariae in blood

d- Appearance of microfilariae in lung

181- Nodulectomy is done in

a- Wuchereria bancrofti

b- Brugia malayi

C-Onchocerca volvulus

d- Loa loa

182- Those nematodes are infections by ingestion of larva EXCEPT

A-Dracunculus medinensis

b- Ancylostoma duodenale

C-Trichostrongylus colubriformis

d- Trichinella

183- Which of the following parasites is the African eye worm

a- Toxocare canis

b- Loa loa

C-Onchocerca volvulus

d- Mansonella ozzardi

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