18 Questions
What is the length of Taenia saginata?
6-25 meters
What is the function of the holdfast organ in Taenia saginata?
It helps in attachment to the host
What is the characteristic feature of the gravid segment of Taenia saginata?
It is longer than wide
How do humans acquire Taenia saginata infection?
Through ingestion of contaminated food or water with eggs
What is the intermediate host of Taenia saginata?
Bovines
What is the infective stage of Taenia saginata?
Cysticercus bovis
Which of the following Cestoda species belongs to the Order Pseudophyllidea?
Diphyllobothrium latum
What is the Order classification of the Cestoda species Hymenolepis diminuta?
Cyclophyllidea
Which of the following Cestoda species has a life cycle that involves a definitive host and an intermediate host?
All of the above
What is the morphological characteristic of the Cestoda species Taenia solium?
It has a segmented body with a large number of proglottids
Which of the following Cestoda species has a life cycle that involves a flea as an intermediate host?
Dipylidium caninum
What is the morphological characteristic of the Cestoda species Echinococcus granulosus?
It has a small, unsegmented body
What is the length of the H. nana tapeworm?
2 centimeters
What is the characteristic of the scolex of H. nana?
Retractable rostellum with hooks
What is the shape of the egg of H. nana?
Spherical
What is the role of insects in the life cycle of H. nana?
Intermediate hosts
How do humans typically acquire H. nana infection?
Ingestion of infected fleas or beetles
What is the diagnostic stage of H. nana?
Embryonated egg
This lecture covers Cestoda, a type of flatworm, including its classification, morphology, life cycle, epidemiology, pathology, diagnosis, and treatment. It specifically focuses on Diphyllobothrium latum and Dipylidium caninum.
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