13 - Acanthocephala and Liver Flashcards Preview

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Flashcards in 13 - Acanthocephala and Liver Deck (30):
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we went through before I guess - should probably know this pretty well

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figure this out using prior slide I guess

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(Liver fluckes)

(give normal names)

1-3. in picture

4. dicrocoelium dendriticum

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1. common liver fluke

2. giant liver fluke

3. large american liver fluke

4. lancet fluke

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(Fasciola Hapatica)

1. cause of what?

2. world, most of US - in minnesota?

3. DH?

4. IH

1. liver fluke disease, liver rot or hepatic distomiasis

2. no

3. sheep, cattle, llamas (human)

4. amphibious, right handed snails (Lymnae)

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(Life Cycle of Fasciola Hepatica)

1. IH - only in what?

1. the snail

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(Fasciola Hepatica)

(life history)

(juvenile fluke)

1. penetrates what?

2. migrates to the liver via what?

3. then penetrates what?

1. intestinal wall

2. peritoneal cavity

3. liver capsule

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(Fasciola Hepatica)

1. migrates in hepatic parenchyma for how long?

2. enters what to mature in a few weeks?

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(Fasciola Hepatica)

(Acute or Chronic)

(Pathogenesis - Acute)

1. migration of what where?

2. depends on what?

1. juvenile flukes in the liver parnchyma

2. how many flukes were ingested

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(Fasciola Hepatica)

(Acute or Chronic)

(Pathogenesis - Chronic)

1. adults where? do what?

2. then tell me all the other stuff that happens

1. adults in biliary ducts - feed on lining

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(Fasciola Hepatica)

(Clinical signs)

1. if get enough necrosis can get what?

2. then open to what?

1. black disease

2. clostridium novyi

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fluke eggs don't float.... that's what they usually do - so they use sedimentation

1. What's the best way to identify fluke eggs on a fecal?

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1. FLUKE FINDER

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(Fascioloides Magna)

1. aka?

2. causes what?

3. DH?

4. IH?

5. Accidnetal hosts?

1. large north american liver fluke

2. fascioloidasis

3. white tailed deer

4. lymnaea, Stagnicola

5. sheep, cattle, llama, moose, elk

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1. can flukes mature in sheep and goats?

2. what are required to complete life cycle?

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1. no

2. snails

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(Fascioloides Magna)

(Pathogenesis)

1. asymptomatic with up to how many flukes?

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1. 50

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(Fascioloides Magna)

(Pathogenesis)

(Cattle, Pigs, Moose)

1. flukes, form cysts with a thick wall

2. do flukes reach sexual maturity?

3. do cysts communicate with bile duct?

4. are eggs found in feces?

5. can they cause disease?

2. they may

3. no

4. no

5. only heavy infections

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(look at pic)

1. do flukes mature?

2. eventually cause what?

3. how many flukes to cause death?

4. most deaths when?

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1. no - they continue to migrate

2. death of the host

3. can be a single one (through major blood vessel)

4. winter

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(Dicrocoelium Dendriticu)

1. aka what?

2. DH?

3. IH?

1. lancet fluke

2. ruminants

3. 1st a land snail = Cionella

2nd an ant = formica

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ants love the slime balls

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