12 Questions
Where is the anterior part of the adult Trichuris trichiura worm found?
Embedded in the mucosa of the large intestine
What is the typical lifespan of the Trichuris trichiura worm?
5-10 years
Which of the following is not a requirement for the life cycle of Trichuris trichiura?
Presence of an intermediate host
What is the primary cause of Trichuris dysentery syndrome (TDS)?
Heavy colonic infection with Trichuris worms
Which of the following is a characteristic of the Trichuris trichiura egg?
It has bipolar plugs and is brown in color due to bile-stain
What is the primary mode of transmission for Trichuris trichiura infection?
Ingestion of embryonated eggs in the soil
Which of the following is NOT a characteristic of nematodes?
The male is generally larger than the female.
What is the primary mode of infection for intestinal nematodes?
Ingestion of infective eggs or encysted larvae in muscle
Which of the following is NOT a component of the male reproductive system in nematodes?
Ovary
What does the term 'ovoviviparous' refer to in the context of nematode reproduction?
Laying eggs containing larvae that immediately hatch
Which of the following is the common name for the nematode Trichuris trichiura?
Whipworm
Which of the following statements about the distribution of Trichuris trichiura is correct?
It is distributed globally but more common in the tropics and subtropics.
This quiz covers Chapter 10a on Intestinal Nematodes, specifically Soil-Transmitted Helminths (STH), in the field of Medical Parasitology. Topics include the general characteristics of nematodes, such as their cylindrical shape, size variations, and anatomical features.
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