Echinostoma Trivolvus Parasitology Quiz

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What is the characteristic of the oral sucker in Echinostoma trivolvus?

It has a collar of large spines (correct)

It has a collar of small spines

It has no collar of spines

It has a collar of branched spines

What is the size of the eggs of Echinostoma trivolvus?

60-90 x 130-150 micrometers

130-150 x 60-90 micrometers (correct)

80-120 x 45-60 micrometers

45-60 x 80-120 micrometers

Where do adult Paragonimus westermani worms occur in the body?

In the intestines

In the liver

In the bile ducts

In the lungs (correct)

What is the location of the ventral sucker in Clonorchis sinensis?

In the anterior one-third of the body Signup and view all the answers

What is a characteristic of the eggs of Paragonimus sp.?

They have distinct shoulders Signup and view all the answers

What is a key distinguishing feature between Fasciolopsis buski and Fasciola hepatica?

The presence of a 'snout' in Fasciola hepatica Signup and view all the answers

What is the host of Clonorchis sinensis in some Asiatic countries?

Humans Signup and view all the answers

Where do adult Fasciola hepatica worms typically live in their host?

In the gall bladder and bile ducts Signup and view all the answers

Why is Fasciola hepatica not native to the Western hemisphere?

It was introduced two or three hundred years ago Signup and view all the answers

What is a characteristic feature of the intestinal cecae of Fasciolopsis buski?

They are unbranched Signup and view all the answers

What is a consequence of Fasciola hepatica maturation in the liver?

It causes pronounced liver damage Signup and view all the answers

Which of the following is NOT a characteristic of adult Fasciola hepatica?

Unbranched intestinal cecae Signup and view all the answers