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Medical Parasitology: Cestoda Lecture

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Questions and Answers

What is the length of Taenia saginata?

More than 30 meters

6-25 meters (correct)

Between 1-5 meters

Less than 6 meters

What is the function of the holdfast organ in Taenia saginata?

It helps in respiration

It helps in reproduction

It helps in digestion

It helps in attachment to the host (correct)

What is the characteristic feature of the gravid segment of Taenia saginata?

It has no uterine pore

It has fewer than 13 lateral branches

It is shorter than wide

It is longer than wide (correct)

How do humans acquire Taenia saginata infection?

Through ingestion of contaminated food or water with eggs Signup and view all the answers

What is the intermediate host of Taenia saginata?

Bovines Signup and view all the answers

What is the infective stage of Taenia saginata?

Cysticercus bovis Signup and view all the answers

Which of the following Cestoda species belongs to the Order Pseudophyllidea?

Diphyllobothrium latum Signup and view all the answers

What is the Order classification of the Cestoda species Hymenolepis diminuta?

Cyclophyllidea Signup and view all the answers

Which of the following Cestoda species has a life cycle that involves a definitive host and an intermediate host?

All of the above Signup and view all the answers

What is the morphological characteristic of the Cestoda species Taenia solium?

It has a segmented body with a large number of proglottids Signup and view all the answers

Which of the following Cestoda species has a life cycle that involves a flea as an intermediate host?

Dipylidium caninum Signup and view all the answers

What is the morphological characteristic of the Cestoda species Echinococcus granulosus?

It has a small, unsegmented body Signup and view all the answers

What is the length of the H. nana tapeworm?

2 centimeters Signup and view all the answers

What is the characteristic of the scolex of H. nana?

Retractable rostellum with hooks Signup and view all the answers

What is the shape of the egg of H. nana?

Spherical Signup and view all the answers

What is the role of insects in the life cycle of H. nana?

Intermediate hosts Signup and view all the answers

How do humans typically acquire H. nana infection?

Ingestion of infected fleas or beetles Signup and view all the answers

What is the diagnostic stage of H. nana?

Embryonated egg Signup and view all the answers