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Parasitic Worms Quiz

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Questions and Answers

What is the geographical distribution of Diphyllobothrium latum?

African countries and foci in Europe

Asian countries and foci in Australia

South American countries and foci in Asia

European Baltic countries and foci in America and Russia (correct)

What is the size range of adult Diphyllobothrium latum?

3-10 meters in length (correct)

20-30 centimeters in length

1-2 centimeters in length

50-60 meters in length

What is the intermediate host for Diphyllobothrium latum?

First intermediate host: Snails. Second intermediate host: Pigs.

First intermediate host: Cattle. Second intermediate host: Sheep.

First intermediate host: Mosquitoes. Second intermediate host: Birds.

First intermediate host: Cyclops (water flea). Second intermediate host: Fresh water fish. (correct)

What is the mode of infection for Diphyllobothrium latum?

Ingestion of raw or undercooked fish Signup and view all the answers

What is the morphology of Diphyllobothrium latum's egg?

70x45 µm, oval, immature, and has operculated thick shell Signup and view all the answers

What is the size range of adult Diphyllobothrium latum?

3-10 meters Signup and view all the answers

Which host acts as the first intermediate host for Diphyllobothrium latum?

Cyclops (water flea) Signup and view all the answers

What is the infective stage of Diphyllobothrium latum?

Plerocercoid larva Signup and view all the answers

Where is the habitat of Diphyllobothrium latum?

Ileum and sometimes jejunum Signup and view all the answers

What is the geographical distribution of Diphyllobothrium latum?

European Baltic countries and foci in America and Russia Signup and view all the answers

Study Notes

Geographical Distribution

Diphyllobothrium latum is found in the Northern Hemisphere, particularly in the lakes and rivers of Europe, Asia, and North America.

Size Range

Adult Diphyllobothrium latum can range from 5 to 10 meters in length.

Intermediate Hosts

The first intermediate host of Diphyllobothrium latum is the copepod crustacean.
The second intermediate host is a fish, such as pike, trout, or perch.

Mode of Infection

Humans are infected with Diphyllobothrium latum through the consumption of raw or undercooked fish containing the parasite.

Egg Morphology

The eggs of Diphyllobothrium latum are oval-shaped, operculated, and approximately 60-70 μm in length.

Habitat

Diphyllobothrium latum is found in freshwater lakes and rivers.

Infective Stage

The infective stage of Diphyllobothrium latum is the plerocercoid stage, which is found in fish.

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Description

Test your knowledge of parasitic worms with this quiz on Diphyllobothrium latum, Taenia saginata, and Taenia solium. Learn about their diseases, geographical distribution, and adult morphology. Perfect for students of biology, medicine, or veterinary science.