29 Questions
What is the general term for worms that are restricted to members of the Phylum Platyhelminthes, Nematoda, and Acanthocephala?
Helminths
What is the function of the scolex in cestodes?
Anchorage and attachment to the intestinal wall
How do cestodes obtain nutrients?
By absorbing nutrients through their integument
What is the term for the segmented part of a cestode that contains both male and female reproductive systems?
Proglottid
What is the range of pH that cestodes can survive in?
4-11
What serves as the portal of entry for tapeworms?
Mouth
Where is Diphyllobothriasis infection commonly found?
Northern temperate areas of the world
What is the main host of the Diphyllobothriasis parasite?
Humans, canids, and felines
What is the primary symptom of Diphyllobothriasis infection?
Non-specific abdominal signs
What is the distinguishing feature of the scolex of Taenia solium?
4 suckers with rostellum and a double crown of hooks
What is the treatment for Diphyllobothriasis infection?
Praziquantel 10mg/kg single dose
What is the consequence of Diphyllobothriasis infection on vitamin levels?
Decreased vitamin B12 levels
What is the characteristic shape of mature proglottids of Taenia solium?
Squared shaped
How many branches are present in the uterus of a gravid Taenia solium?
713 branches
What is the shape of the uterus in a mature proglottid?
Rosette-shaped
What is the characteristic of the embryo or oncosphere of Taenia solium eggs?
6 hooked embryo or oncosphere
What is the primary mode of infection for Paragonium westermani?
Eating uncooked freshwater crabs
What is the characteristic feature of the scolex of Taenia saginata?
4 suckers without rostellum and hooks
How long can Diphyllobothrium latum tapeworms grow in humans?
Up to 310 meters
What is the characteristic shape of the ovary in Paragonium westermani?
Lobate shape
Which of the following is NOT a symptom of Paragonimiasis?
Diarrhea
What is the unique structure of Paragonium westermani?
Coffee-bean shape
What is the characteristic of the eggs of Paragonium westermani?
Large with a thick shell
What is the typical duration between infection and the occurrence of a severe eosinophilic granulomatous reaction?
1-2 weeks
What is the reservoir host for Paragonium westermani?
Piscivorous mammals
What is the recommended treatment for Trichinella infection?
Gastroscopic examination/surgical or endoscopic removal
What is the purpose of a stool ova and parasite test?
To detect intestinal parasites and their eggs
What is the characteristic shape of the male Trichinella spiralis?
Tapered at the anterior end and curved at the posterior end
What is the typical location of encysted larvae of Trichinella?
In the pressed muscle tissue inside the cyst
This quiz covers the medically important helminths, including their reproduction, general body structure, and characteristics of cestodes. It's a part of the Microbiology and Parasitology lecture in the 2nd semester of AY 2023-2024.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
