17 Questions
Which of the following statements is true about nematodes (roundworms)?
They are bilaterally symmetrical.
What is the primary difference between the male and female adult roundworm?
The female is longer than the male.
Which of the following structures is present in the male roundworm reproductive system?
Gubernaculum
What is the approximate length range of a female adult roundworm?
22-35 cm
Which of the following statements about metazoans is incorrect?
They possess a cell wall.
What is the term used to describe nematodes that have both male and female reproductive organs?
Monoecious
Which structure do male worms possess that allows them to attach to female worms during reproduction?
Spicule
In which stage do nematodes lay unsegmented eggs that need to develop first before becoming embryonated?
Unsegmented stage
Which type of nematodes lay eggs in the segmented stage, where the eggs are already embryonated?
Ovoviviparous
Where are chemoreceptors called phasmids located on nematodes?
Caudal region
Which group of nematodes does not possess phasmids as chemoreceptors?
"TCT" group
Which of the following is NOT a characteristic of hookworm infections?
Infections can occur through ingesting contaminated food or water
Which of the following is a diagnostic method for hookworm infections?
Graham's Scotch Tape Swab
Which of the following statements about hookworm larvae is correct?
Filariform larvae have a long oral cavity or buccal capsule
Which of the following is a recommended treatment for hookworm infections?
Mebendazole
Which of the following statements about hookworm infections is correct?
Hookworm infections can be controlled through sanitary disposal of human feces
Which of the following is a characteristic of the hookworm Ancylostoma duodenale?
It is known as the 'Germ of Laziness'
Test your knowledge on intestinal nematodes, focusing on the taxonomic classification, male adult worm characteristics, and reproductive system details. This quiz covers key aspects of nematodes roundworms discussed in Module 2 of a clinical parasitology lecture.
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