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Parasitology

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PARA: formative exam 1

PARA: formative exam 1

Question 1 of 11

1

The infective stage of Heterophyes heterophyesis is:

Select one of the following:

  • Miracidium

  • Egg

  • Cercaria

  • Metacercaria

Explanation

Question 2 of 11

1

The intestinal trematode/s endemic in Egypt is/are :

Select one of the following:

  • Fascolopsis buski

  • Heterophyes heterophyes

  • Metagonimus yokogawai

  • All of above

Explanation

Question 3 of 11

1

The brakish water snail/s is/are :

Select one of the following:

  • Semisulcospira libertina

  • Pirenella conica

  • Segmentina

  • All of the above

Explanation

Question 4 of 11

1

The diagnostic stage of Metagonimus is :

Select one of the following:

  • The miracidium

  • The egg

  • The cercaria

  • All the above

Explanation

Question 5 of 11

1

The size of Heterophyes egg is :

Select one of the following:

  • 30×15 um

  • 70×25 um

  • 150×70 um

  • None of above

Explanation

Question 6 of 11

1

On dissection of an infected snail we can find the following trematode larval stages EXCEPT :

Select one of the following:

  • Miracidium

  • Sporocyst

  • Encysted metacircaria

  • Cercaria

Explanation

Question 7 of 11

1

Aquaculture (fish is meant) is a risk factor for transmission of:

Select one of the following:

  • Metagonimus yokogawai

  • Fasciolopsis buski

  • Taenia soium

  • All of above

Explanation

Question 8 of 11

1

Lophocercus cercaria emerges from:

Select one of the following:

  • Segmentina species

  • Semisulcospira libertina

  • Pirenella conica

  • Both B & C

Explanation

Question 9 of 11

1

Parasite/s that has/have 2 intermediate hosts is/are :

Select one of the following:

  • Heterophyes Heterophyes

  • Metagonimus yokogawai

  • Fasciolopsis buski

  • Both A & B

Explanation

Question 10 of 11

1

Proper hygiene is a control measure of :

Select one of the following:

  • Fasciolopsis buski

  • Heterophyes heterophyes

  • Metagonimus yokogawai

  • All of the above

Explanation

Question 11 of 11

1

Man acquires infection with Metagonimus yokogawai by:

Select one of the following:

  • ingestion of egg

  • ingestion of uncooked fish containing the encysted metacercaria

  • contact with water containing the infective lophocercus cercaria

  • None of the above

Explanation

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