30 Questions
What is the most common symptom of hookworm infection?
Anemia
Where are both N. americanus and A. duodenale found?
Asia and Africa
Where do adult hookworms reside in the human body?
Small intestine
How can larvae be used to differentiate between N. americanus and A. duodenale?
By rearing filariform larvae in a fecal smear
What is the predominant species in the Americas and Australia?
N. americanus
How do hookworm larvae enter a human host?
Through the skin
Which method is most commonly used to diagnose hookworm infection?
Microscopic identification of eggs in stool
What is the length range of adult female Ancylostoma duodenale?
10 to 13 mm
What additional symptoms, apart from anemia, can occur in hookworm infection?
'Ground itch'
How long can hookworm infective larvae survive in favorable environmental conditions?
4 weeks
What is the characteristic feature of an Ascaris egg containing a larva?
It is infective when ingested
How do hookworm larvae reach the small intestine after penetrating the skin?
Through blood vessels to the lungs
What is the size range of Strongyloides stercoralis male worms?
1 mm
How are hookworm infections generally treated?
With albendazole for 1-3 days
What is the most distinctive aspect of the Strongyloides life cycle compared to other nematodes?
Potential for autoinfection
What happens to the rhabditiform larvae of Strongyloides stercoralis that molt twice?
They become infective filariform larvae
Which type of life cycle does Strongyloides stercoralis exhibit?
Free-living cycle
How do the filariform larvae of Strongyloides stercoralis initiate the parasitic cycle in humans?
Penetrate the human host skin
What is the most typical symptom of enterobiasis?
Perianal pruritus
Where do gravid females migrate to oviposit in enterobiasis?
On the skin of the perianal area
What is retroinfection in the context of enterobiasis?
Migration of larvae from skin to rectum
Where is microscopic identification of eggs done to diagnose enterobiasis?
On a slide after pressing adhesive tape on perianal skin
In which location is enterobiasis more common according to the text?
Temperate countries
What is the estimated number of persons infected with enterobiasis in the United States?
40 million
How long can Taenia saginata survive in the upper jejunum?
25 years
Which part of the tapeworm body is responsible for holding onto the host's intestine?
Scolex
How many suckers does the scolex of Taenia saginata possess?
4 suckers
How many rows of hooklets are present on the scolex of Taenia solium?
2 rows
In which part of the tapeworm body are the lateral genital pores located?
Proglottids
How many lateral branches make up the uterus in the terminal segments of Taenia saginata?
15-20 lateral branches
Test your knowledge on diagnostic characteristics, prevention, treatment, and morphology of hookworm and Strongyloides stercoralis. Learn about the eggs, larvae, infection process, and treatment options.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
