lab test 1

Question 1

what is the host spectrum of Faciola hepatica

Answer 1

wide, mostly herbivourous mammals and humans

Question 2

what are the steps in the lifecycle of F.hepatica

Answer 2

MI-SPO-RE1-RE2-CE (miracidium, sporocysts, redia and cercaria)

Question 3

how is the life cycle of faciola hepatica?

Answer 3

indirect

Question 4

where can you fin the adult form of faciola hepatica?

Answer 4

in the bile duct and gall blader

Question 5

where can you fin the juvienile form of F.hepatica?

Answer 5

penetrates the intestines and migrates to the liver via abdominal cavity

Question 6

what is the primary intermediate host of F. hepatica?

Answer 6

galba truncatula (snail)

Question 7

what is the main source of heavy faciola infection?

Answer 7

secondary biotypes

Question 8

what is the size of the eggs of F.hepatica?

Answer 8

120-150µm

Question 9

what is the colour of F.hepatica eggs?

Answer 9

golden yellow

Question 10

what does the faciola hepatica egg contain?

Answer 10

zygote

Question 11

what surrounds the F. hepatica egg?

Answer 11

granulated yolk

Question 12

zygote containing egg of F. hepatica develops into what?

Answer 12

ciliated larva (miracidium) in water usually within 2 weeks

Question 13

in the body of the snail the first larva turns into what?

Answer 13

bladder-like sporocyst

Question 14

what happens to the cavity of the sporocyst of F.hepatica?

Answer 14

third larval form develops by asexual budding (paedogenesis)

Question 15

in which stage does F. hepatica she their tail?

Answer 15

Cercariae

Question 16

how long does the migration of F. hepatica take in the liver parenchyma?

Answer 16

4-6 weeks

Question 17

how long is the prepatent period of F.hepatica?

Answer 17

10 weeks

Question 18

what are the definative hosts of F. hepatica?

Answer 18

all kinds of ruminants, mainly the hollow horned ones (bovine)

Question 19

what are the most susceptible species for F. hepatica?

Answer 19

sheep, goat, rabbit and hare (artificially; mouse)

Question 20

what are the moderatley susceptible species of Faciola hepatica?

Answer 20

cattle, deer, roe-deer, moufflon, buffalo and camel (artificially - guinea pig)

Question 21

what are the lease susceptible species of faciola hepatica?

Answer 21

horse, pig, dog, cat, humans

Question 22

what can the symptoms be of Faciola hepatica acute form?

Answer 22

rapid weight loss, sudden death

Question 23

what colour are the mucous membranes in the case of sub acute faciolosis?

Answer 23

pale

Question 24

what can the symptoms of sub-acute faciola hepatica?

Answer 24

severe anaemia, bottle jaw

Question 25

what can be the symptoms of chronic form *faciola hepatica*?

Answer 25

submandibular oedema, cachexia

Question 26

*F. hepatica* in case of acute form the young flukes can be found in?

Answer 26

liver parenchyma

Question 27

*F. hepatica* in case of chronic form the flukes can be found in?

Answer 27

biliary ducts and gall bladder

Question 28

what are the steps to the lifecycle of rumen fluke?

Answer 28

MI-SPO-RE1-CE (miracidium, sporocysts, redia and ceraria)

Question 29

how is the lifecycle of rumen flukes?

Answer 29

indirect

Question 30

how long is the prepatent period of rumen flukes?

Answer 30

16-18 weeks

Question 31

where can you find the immature rumen flukes?

Answer 31

duodenum, abomasum

Question 32

juvenile form of rumen flukes is found in?

Answer 32

duodenum

Question 33

what colour does the eggs of rumen fluke have?

Answer 33

they are colourless

Question 34

what is special about the juvenile form of rumen flukes?

Answer 34

they never leave the intestinal canal during their route from small intestine to stomach

Question 35

what is the intermediate host for rumen fluke?

Answer 35

Galba truncatula for calicophoron species and shells of planorbids act as intermediate hosts for paramphistomum species

Question 36

what is the habitat for the intermediate host of the rumen flukes?

Answer 36

they have a wide range of habitats

Question 37

in which animals is the rumen fluke common?

Answer 37

wild animals

Question 38

what is the size of the eggs of lancet flukes?

Answer 38

40-48µm long

Question 39

when is the miracidium able to hatch in the lancet flukes?

Answer 39

if the egg is consumed by a land snail

Question 40

where does the larvae of the lancet fluke hatch?

Answer 40

in the intestines of the snails

Question 41

where does the larvae of the lancet fluke develop?

Answer 41

in the body cavity of the intermediate host to sporocyst

Question 42

what does the sporocyst of the lancet fluke produce?

Answer 42

several generations of other sporocysts

Question 43

cercariae of the lancet fluke have a sharp spine on the tip of the head, what is this called?

Answer 43

stylet

Question 44

how does the cercariae of the lancet fluke leave the snail?

Answer 44

with the expelled mucous

Question 45

where do juvenile lancet flukes develop into adults?

Answer 45

liver, through biliary ducts

Question 46

Approximatley how long is the prepatent period in lancet flukes?

Answer 46

7-9 weeks

Question 47

what is the intermediate host for lancet flukes?

Answer 47

small landsnails may act as first intermediate host

Question 48

for how long does the infected snail survive in the lancet flukes?

Answer 48

1-4 years

Question 49

what is the second intermediate host for lancet flukes?

Answer 49

ants

Question 50

how long does the infected ants of the lancet flukes survive?

Answer 50

maximum 1 year