Blood Flukes and Schistosomes

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Questions and Answers

Which genus do blood flukes belong to?

Clonorchis
Schistosoma (correct)
Opisthorchis
Fasciola

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?

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?

<p>Dioecious with distinct sexual dimorphism between males and females (D)</p> Signup and view all the answers

Which type of schistosomiasis is caused by Schistosoma japonicum?

<p>Oriental schistosomiasis (B)</p> Signup and view all the answers

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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Description

Learn about blood flukes, also known as schistosomes, and their characteristics. Schistosomes are parasitic flatworms that cause infections in humans known as schistosomiasis.