18 Questions
What distinguishes the egg of hookworm when released by the worm in the intestine from when passed in feces?
It contains an unsegmented ovum in the intestine and a segmented ovum in feces
What is the infective stage of hookworm found in soil called?
Filariform larva
How does the rhabditiform larva of hookworm differ from Strongyloides stercoralis larva?
Rhabditiform larva has a small genital primordium compared to Strongyloides larva
What is the main symptom of chronic hookworm infections?
Iron deficiency anemia with pallor and edema
What is the blood loss per adult for Ancylostoma duodenale?
0.05-0.3 ml
What is the size range of hookworm eggs?
56-75μm long by 36-40μm wide
How long does it take for larvae to develop to infectivity within fertile eggs?
Several weeks
Where do the larvae mature further after penetrating the alveolar walls?
Lungs
What is the term used for the infective stage of an embryonated egg with L3 larva?
Strongyloides larva
How long does it take for adult worms to live?
1 year
What is the primary clinical manifestation of ascariasis?
Abdominal pain
What term is used for the stage when the egg hatches in the intestines and penetrates the mucosa?
Rhabditiform larva
What is the size range of the female Capillaria philippinensis worm?
2.5-4.3 mm
How are the eggs of Capillaria philippinensis different from those of Trichuris trichiura?
Capillaria eggs have more prominent polar plugs
What distinguishes a typical female Capillaria philippinensis from an atypical female?
Number of eggs in the uterus and arrangement
Which natural source serves as an intermediate host for Capillaria philippinensis?
'Bagsit' fish (Hypseleoptris bipartita)
What feature distinguishes the male Capillaria philippinensis worm?
Long non-spiny sheath
Which term describes the production of larvae by the first generation female Capillaria philippinensis worms?
Larviparous
Test your knowledge on hookworm biology and life cycle. From the characteristics of duodenale adult to understanding the oval or elliptical egg morphology, this quiz covers various aspects of hookworms.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
