Test 1 Flashcards
What is the host spectrum of Fasciola Hepatica?
Wide, mostly herbivorous mammal and humans.
What are the steps of the lifecycle of F.hepatica?
MI- SPO-RE1-RE2-CE.
Miracidium, Sporocysts, Redia, Cercaria
How is the lifecycle of F.hepatica?
Indirect.
Where can you find the adult form of Fasciola hepatica?
In the bile duct and gallbladder.
Where can you find the juvenile form of Fasciola hepatica?
Penetrates the intestine and migrates to the liver via abd cavity.
What is the 1º intermediate host of F.hepatica?
Galba truncatula ( snail).
What is the main source of heavy fasciolosis?
2º biotopes.
What is the size of the eggs of F.hepatica?
120- 150µm.
Which color of the eggs does Fasciola hepatica have?
Golden yellow.
What does the Fasciola hepatica eggs contain?
Zygote.
What surrounds the egg of the F.hepatica?
Granulated yolk.
Zygote containing egg of F.hepatica develops into?
Ciliated larva ( miracidium) in H2O usually within 2 weeks.
F.hepatica: in the body of snail the first larva turns into?
Bladder-like sporocyst.
What happens in the cavity of sporocyst of F.hepatica?
3rd larval form develops by asexual budding ( paedogenesis).
In which stage does the F.hepatica shed their tail?
Cercariae.
How long takes the migration in the liver parenchyma of F.hepatica?
4- 6 weeks.
Approximately how long is the praepatent period of F.hepatica?
10 weeks.
What are the definitive hosts of F.hepatica?
All kinds of Ru., mainly the hollow-horned ones ( bovidae).
What are the most susceptible sp. for F. hepatica?
Sheep, goat, rabbit and hare + ( artificially mouse and rat).
What are the moderately susceptible sp. of Fasciola hepatica?
Cattle, deer, roe-deer, mouddlon, buffalo and camel _ ( artificial guinea pig).