13 - Acanthocephala and Liver

Question 1

Answer 1

Question 2

Answer 2

we went through before I guess - should probably know this pretty well

Question 3

figure this out using prior slide I guess

Question 4

(Liver fluckes)

(give normal names)

1-3. in picture

4. dicrocoelium dendriticum

Answer 4

1. common liver fluke
2. giant liver fluke
3. large american liver fluke
4. lancet fluke

Question 5

(Fasciola Hapatica)

1. cause of what?
2. world, most of US - in minnesota?
3. DH?
4. IH

Answer 5

1. liver fluke disease, liver rot or hepatic distomiasis
2. no
3. sheep, cattle, llamas (human)
4. amphibious, right handed snails (Lymnae)

Question 6

Answer 6

Question 7

(Life Cycle of Fasciola Hepatica)

1. IH - only in what?

Answer 7

1. the snail

Question 8

Answer 8

Question 9

(Fasciola Hepatica)

(life history)

(juvenile fluke)

1. penetrates what?
2. migrates to the liver via what?
3. then penetrates what?

Answer 9

1. intestinal wall
2. peritoneal cavity
3. liver capsule

Question 10

(Fasciola Hepatica)

1. migrates in hepatic parenchyma for how long?
2. enters what to mature in a few weeks?

Answer 10

Question 11

Question 12

(Fasciola Hepatica)

(Acute or Chronic)

(Pathogenesis - Acute)

1. migration of what where?
2. depends on what?

Answer 12

1. juvenile flukes in the liver parnchyma
2. how many flukes were ingested

Question 13

(Fasciola Hepatica)

(Acute or Chronic)

(Pathogenesis - Chronic)

1. adults where? do what?
2. then tell me all the other stuff that happens

Answer 13

1. adults in biliary ducts - feed on lining

Question 14

Answer 14

Question 15

(Fasciola Hepatica)

(Clinical signs)

1. if get enough necrosis can get what?
2. then open to what?

Answer 15

1. black disease
2. clostridium novyi

Question 16

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?

Answer 16

1. FLUKE FINDER

Question 17

Question 18

Question 19

(Fascioloides Magna)

1. aka?
2. causes what?
3. DH?
4. IH?
5. Accidnetal hosts?

Answer 19

1. large north american liver fluke
2. fascioloidasis
3. white tailed deer
4. lymnaea, Stagnicola
5. sheep, cattle, llama, moose, elk

Question 20

Answer 20

Question 21

Question 22

Answer 22

Question 23

1. can flukes mature in sheep and goats?
2. what are required to complete life cycle?

Answer 23

1. no
2. snails

Question 24

(Fascioloides Magna)

(Pathogenesis)

1. asymptomatic with up to how many flukes?

Answer 24

1. 50

Question 25

(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?

Answer 25

2. they may 3. no 4. no 5. only heavy infections

Question 26

(look at pic) 1. do flukes mature? 2. eventually cause what? 3. how many flukes to cause death? 4. most deaths when?

Answer 26

1. no - they continue to migrate 2. death of the host 3. can be a single one (through major blood vessel) 4. winter

Question 27

Answer 27

Question 28

(Dicrocoelium Dendriticu) 1. aka what? 2. DH? 3. IH?

Answer 28

1. lancet fluke 2. ruminants 3. 1st a land snail = Cionella 2nd an ant = formica

Question 29

ants love the slime balls

Answer 29

Question 30