Hydatid Cysts and Protoscolices Formation

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How do adult tapeworms absorb their nutrients?

By photosynthesis

Through their mouth

Directly from their host through their integument (correct)

Through their segmented proglottids

What is the function of the scolex in an adult tapeworm?

Segment generation

Attachment to the intestinal wall (correct)

Nutrient absorption

Reproduction

In the life cycle of Taenia saginata & T.solium, who are the definitive hosts that harbor the adult worms?

Fish and amphibians

Cattle and pigs

Birds and reptiles

Humans and dogs (correct)

Where is the natural habitat of Taenia saginata & T.solium in the human host?

(Upper jejunum) small intestine Signup and view all the answers

What is the infectious stage of Schistosoma cercariae known as?

Schistosomules Signup and view all the answers

What is the most significant pathology associated with Schistosoma infections?

Schistosome eggs Signup and view all the answers

What symptom can be induced by cercariae penetration into the skin?

Dermatitis Signup and view all the answers

What is the primary mechanism of action of Praziquantel against Schistosoma species?

Damaging the worm's tegument membrane Signup and view all the answers

What is one of the symptoms that can occur in travelers to endemic countries after cercariae penetrate their skin?

Swollen lymph nodes Signup and view all the answers

What complication can result from gradual accumulation of scar tissue within the bladder and ureters due to schistosome egg deposition?

Hydronephrosis Signup and view all the answers

What is the function of brood capsules in a hydatid cyst?

Develop into a hydatid cyst Signup and view all the answers

Why are humans considered aberrant intermediate hosts for Echinococcus granulosus?

They acquire the infection from dog feces Signup and view all the answers

How do hydatid cysts lead to symptoms in the liver?

By causing compression and atrophy Signup and view all the answers

Why are blood flukes like Schistosoma japonicum, Schistosoma mansoni, and Schistosoma haematobium known as water-borne parasitic diseases?

Because they cause diseases transmitted through water Signup and view all the answers

How can tapeworm infection be diagnosed?

By finding eggs or proglottids in the stool Signup and view all the answers

What is the drug of choice for treating T.solium infection?

Niclosamide Signup and view all the answers

What is the primary method of control for tapeworm infections in areas where they are common?

Improved sanitation and feces disposal Signup and view all the answers

In which animal does Echinococcus granulosus reside as an adult worm?

Dogs Signup and view all the answers

How do humans become infected with Echinococcus granulosus?

By consuming eggs from infected dog feces Signup and view all the answers