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?

<p>Through ingestion of contaminated food or water with eggs (D)</p> Signup and view all the answers

What is the intermediate host of Taenia saginata?

<p>Bovines (A)</p> Signup and view all the answers

What is the infective stage of Taenia saginata?

<p>Cysticercus bovis (A)</p> Signup and view all the answers

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

<p>Diphyllobothrium latum (B)</p> Signup and view all the answers

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

<p>Cyclophyllidea (B)</p> 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?

<p>All of the above (D)</p> Signup and view all the answers

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

<p>It has a segmented body with a large number of proglottids (D)</p> Signup and view all the answers

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

<p>Dipylidium caninum (B)</p> Signup and view all the answers

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

<p>It has a small, unsegmented body (D)</p> Signup and view all the answers

What is the length of the H. nana tapeworm?

<p>2 centimeters (D)</p> Signup and view all the answers

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

<p>Retractable rostellum with hooks (A)</p> Signup and view all the answers

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

<p>Spherical (B)</p> Signup and view all the answers

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

<p>Intermediate hosts (D)</p> Signup and view all the answers

How do humans typically acquire H. nana infection?

<p>Ingestion of infected fleas or beetles (A)</p> Signup and view all the answers

What is the diagnostic stage of H. nana?

<p>Embryonated egg (B)</p> Signup and view all the answers

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