Trematodes

Question 1

definition of trematode

Answer 1

unsegmented parasitic worms with 2 suckers and branching intestinal canal

Question 2

3 names for trematodes

Answer 2

fasciolosis
paramphistomidosis
dicrocoeliosis

Question 3

low resistance to fasciolosis

Answer 3

sheep
goat
rabbit
mouse
rat

Question 4

delayed resistance

Answer 4

cattle
buffalo
camel
deer
guinea pig

Question 5

early resistance

Answer 5

horse
pig
dog
cat

Question 6

host of fasciola hepatica

Answer 6

herbivorous mammals and humans

Question 7

morphology of fasciola hepatica

Answer 7

flat 2-3cm
leaf like
slow moving
whitish/greyish brown
head conical and emerges btw 2 shoulders

Question 8

suckers on fasciola hepatica

Answer 8

small sucker on tip of head and on ventral side

Question 9

egg of fasciola hepatica

Answer 9

oval
1 operculate
golden yellow
130-145 um
zygote

Question 10

location of fasciola hepatica

Answer 10

bile ducts

Question 11

longevity of fasciola hepatica

Answer 11

several years

Question 12

sexual organs of fasciola hepatica

Answer 12

yellow masses of eggs behind ventral sucker
testicles have whitish branches
brown yolk glands
visible intestines

Question 13

intermediate hosts of fasciola hepatica

Answer 13

freshwater snails of genus lymnaea

Question 14

intermediate hosts of fasciola gigantica

Answer 14

l. auricularia
l. virdis

Question 15

diagnosis of fasciola hepatica eggs

Answer 15

sedimentation or flotation
eggs in faeces at 6-12weeks

Question 16

diagnosis of fasciola hepatica acute

Answer 16

weight loss
sudden death
no eggs in faeces

Question 17

diagnosis of fasciola hepatica chronic

Answer 17

submandibular oedema
cachexia
changes in blood paramters

Question 18

life cycle of fasciola hepatica

Answer 18

Miracidium -> sporocyst -> redia ->cercaria -> metacercariae

Question 19

migration of fasciola hepatica

Answer 19

4-6weeks

Question 20

maturation of fasciola hepatica

Answer 20

10weeks

Question 21

paramphistomidosis location

Answer 21

rumen and reticulum

Question 22

morphology of paramphistomidosis

Answer 22

bean like 1-2cm
pinkish/reddish conical worms

Question 23

suckers on paramphistomidosis

Answer 23

small sucker on oral end
bigger one of opposite end

Question 24

egg in paramphistomidosis

Answer 24

colourless

Question 25

life cycle of paramphistomidosis

Answer 25

miracidium -> sporocyst -> redia -> cercaria

Question 26

juvenile paramphistomidosis

Answer 26

dont leave intestinal canal

Question 27

infection of paramphistomidosis

Answer 27

po

Question 28

intermediate hosts of paramphistomidosis

Answer 28

Planorbids

Question 29

definite hosts of paramphistomidosis

Answer 29

grazing domestic and wild ruminants

Question 30

cattle paramphistomidosis

Answer 30

calicophoron daubneyi

Question 31

sheep and goat paramphistomidosis

Answer 31

p. cervi

Question 32

wild ru paramphistomidosis

Answer 32

p. cervi p. ichikawai

Question 33

diagnosis of paramphistomidosis acute

Answer 33

diarrhoea anorexia intense thirst rectal haemorrhage oedema

Question 34

diagnosis of paramphistomidosis chronic

Answer 34

asymptomatic

Question 35

treatment of paramphistomidosis acute

Answer 35

stop grazing fluke free pastures niclosamide

Question 36

treatment of paramphistomidosis chronic

Answer 36

levamisole oxyclozanide

Question 37

pathology of paramphistomidosis

Answer 37

erosion of duodenal mucosa catarrhal, haemorrhagic enteritis oedematous and ulcerative intestinal wall

Question 38

dicrocoeliosis location

Answer 38

hypertrophic biliary ducts

Question 39

morphology of dicrocoeliosis

Answer 39

flat 0.5-1cm spearhead shaped worms transparent body whitish, light brown string of eggs

Question 40

sucker of dicrocoeliosis

Answer 40

sucker on tip of head 1 on ventral side

Question 41

life cycle of dicrocoeliosis

Answer 41

miracidium -> sporocyst -> sporocyst -> cercariae

Question 42

prepatent period of dicrocoeliosis

Answer 42

7-9weeks

Question 43

2 intermediate hosts

Answer 43

snails ants

Question 44

eggs of dicrocoeliosis

Answer 44

50um oval, dark brown miracidium

Question 45

diagnosis of dicrocoeliosis

Answer 45

no acute after 7-9weeks theres eggs in faeces

Question 46

treatment for dicrocoeliosis

Answer 46

albendazole praziquantel

Question 47

pathology of dicrocoeliosis

Answer 47

liver isnt enlarged - mottled surface parenchyma intact bile ducts become distended

Question 48

seasonality of acute fasciola

Answer 48

aug - oct

Question 49

seasonality of subacute fasciola

Answer 49

oct - dec

Question 50

seasonality of chronic fasciola

Answer 50

throughout the year

Question 51

appearance of symptoms of acute fasciola

Answer 51

2-6weeks

Question 52

appearance of symptoms of chronic fasciola

Answer 52

4-5months

Question 53

appearance of symptoms of fasciola

Question 54

location of liver flukes in acute

Answer 54

parenchyma

Question 55

location of liver flukes in subacute

Answer 55

parenchyma and bile ducts

Question 56

location of liver flukes in chronic

Answer 56

bile ducts and gall bladder

Question 57

intermediate hosts of calicophoron

Answer 57

Galba trunculata