Flashcards in Exam 3 Deck (206)
Fasciola hepatica life span
how does F. hepatica miracidium get in snail?
it penetrates it
what are hepatica RH's?
cow and sheep
what does hepatica uniquely do to our liver cells to "cultivate" them?
secretes proline to stimulate hyperplasia and hypertrophy
clinical and common name for hepatica infection?
fascioliasis and liver rot
how common is a hepatica infection in humans?
what is the real culprit of halzoun?
Rx for hepatica
what does triclabendazole do to hepatica?
stops all functions req microtubules
what is clinical name for eating hepatica infected beef or sheep liver?
what is it called when snails burrow in soil during dry conditions?
Which fluke is identical to hepatica but not in US?
Fascioloides magna niche
liver tissue, not bile duct
does F. magna infect humans?
what is F. magna common name
what does F. magna produce in liver that leaves black tracks?
Fasciolopsis buski common name
what is the largest fluke to infect humans?
Where is Fasciolopsis buski common distribution?
Clinical signs from heavy Fasciolopsis buski infection?
diarrhea with mucus
3 things buski does to cause pathology:
direct trauma, gut obstruction, allergic response to worm products
how will you clinically distinguish between hepatica and buski? (since both have ~100 um size eggs)
gut damage with buski and liver damage with hepatica
Rx for buski:
what is 2nd int. host for dendriticum?
how is Dicrocelium dendriticum 1st int. host infected?
must eat the tiny eggs of fluke
nickname for Dicrocelium dendriticum?
Dicrocelium dendriticum distrubution:
Europe, asia, N. Africa, N. Am, Australia (everywhere but S. america)
Species of snail that dendriticum infects?
what portion of fluke life cycle is dentriticum missing?