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Questions and Answers
Which organ acts as the first filter for E. granulosus parasites?
Which organ acts as the first filter for E. granulosus parasites?
- Liver (correct)
- Small intestine
- Duodenum
- Lungs
How can humans acquire E. granulosus infection?
How can humans acquire E. granulosus infection?
- Through contaminated soil
- Through direct contact with infected dogs (correct)
- Through contact with infected birds
- Through consuming raw meat
What type of cells are involved in the cellular reaction against E. granulosus parasites?
What type of cells are involved in the cellular reaction against E. granulosus parasites?
- Lymphocytes
- Eosinophils (correct)
- Neutrophils
- Monocytes
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Study Notes
- E. granulosus has a life cycle that involves two hosts
- The adult worm lives in the small intestine of dogs and other canines
- Eggs are discharged in the feces and can be ingested by intermediate hosts
- Humans can acquire the infection through direct contact with infected dogs or contaminated food/water
- The oncospheres hatch in the duodenum and enter the portal vein
- The liver acts as the first filter for the parasites
- The lungs act as the second filter
- Parasites can settle in various organs and cause a cellular reaction
- Host defense mechanisms can destroy a large number of parasites
- Eosinophils are involved in the cellular reaction against the parasite.
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