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Questions and Answers
Which genus do blood flukes belong to?
Which genus do blood flukes belong to?
- Clonorchis
- Schistosoma (correct)
- Opisthorchis
- Fasciola
Which species of Schistosoma is associated with urinary schistosomiasis?
Which species of Schistosoma is associated with urinary schistosomiasis?
- Schistosoma haematobium (correct)
- Schistosoma mekongi
- Schistosoma mansoni
- Schistosoma japonicum
Where do adult flatworms of Schistosoma typically parasitize?
Where do adult flatworms of Schistosoma typically parasitize?
- Lung capillaries
- Blood capillaries of the mesenteries or bladder plexus, depending on the species (correct)
- Blood capillaries of the liver only
- Blood capillaries of the intestines only
Which feature is unique to schistosomes compared to other trematodes?
Which feature is unique to schistosomes compared to other trematodes?
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Which type of schistosomiasis is caused by Schistosoma japonicum?
Which type of schistosomiasis is caused by Schistosoma japonicum?
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Study Notes
Blood Flukes (Schistosomes)
- Blood flukes, also known as schistosomes, are parasitic flatworms that belong to the genus Schistosoma.
- They are responsible for causing a significant group of infections in humans known as schistosomiasis.
- Adult flatworms parasitize blood capillaries of either the mesenteries or plexus of the bladder, depending on the infecting species.
Characteristics of Schistosomes
- Schistosomes are unique among trematodes and any other flatworms in that they are dioecious, meaning they have distinct sexual dimorphism between males and females.
Types of Schistosomiasis
Urinary Schistosomiasis
- Caused by Schistosoma haematobium.
- Primarily affects the bladder and urinary system.
Oriental Schistosomiasis
- Caused by Schistosoma japonicum.
- Primarily affects the intestines and liver.
Intestinal Schistosomiasis
- Caused by Schistosoma mansoni.
- Primarily affects the intestines and liver.
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