Helminthology2 Flashcards
Cestoda(echinococosis_hydatidosis)
Give me two orders of cestoda
Cyclophyllidea_ psedophyllidea
Give me examples of cyclophyllidea
Which part of cestoda plays a role in absorption tract?
Tegument( outer layer of body)
Microthorxincresse absorption area
Give me examples on pseudophyllidea
What increase absoption area?
Microthorix
What types of mouths or attachment sites cestoda has?
Suckers/bothria
What’s range cestoda length can be?
Few millimeters to 10 meters or 30
What’s the difference between egg and larva in cestoda?
Egg hatch into larva stage (intermediate host)
What egg contains?
Embryo and 6 booklets
Onchoshpere
What is onchoshpere?
Cestoda egg
What is metacestode?
Larva stage in intermediate host
Which diseases caused by larva stage of cestoda?
What hydatid disease also called?
_hydatid
_hydatidosis
_human echinococcosis
What hydatid disease caused by?
Larval stage of genus echinococcus granulosus tapeworm
Is echinococcosis zoonotic?
Yes
List the important species of echinococcus
Give 2 examples on human echinococcosis
.Cystic(hadatid)
.Alveolar
What cause alveolar echinococcosis?
E. Multilocularis
What tapeworm cause the most common type of human E.?
S.L. or echinococcus granulosus sensu lato
What S.L. represent?
The species complex
What the most dominant genotypes in S.L.?
S.S. echinococcus granulosus sensu stricto
, G1_G3
Whats the most common genotype of S.L.?
G1
Hiw many genotypes does S.L. have?
10
Where does echinococcus granulosus common?
In all continents
Definitive host of echinococcus granulosus?
Carnivoes
(Dogusually fox, coyotes,hyenas, canids,felida,wolves)
Intermediate host of echinococcus granulosus?
Herbivorous &hoofed animles& livestock &humans
(Sheep,goat, cattle,deer,pig,wallabies,camels, kangaroos,horse,moose)
Most common intermediate host domestic cycle of echinococcus granulosus?
Farm_dog to sheep cycle
What is the accidental host in echinococcus granulosus?+ How
Human
(Contact with definitive host-ingestion, geophagiafeces)
Risk factors of echinococcus granulosus?
_ownership of livestock
_agriculture
_ pastoralism
_occupations
_poor hygiene
_slaughtering
Morphology of adult echinococcus granulosus
Size of adult echinococcus granulosus?
3_8mm
How long does adult echinococcus granulosus live?
6_30months
Morphology of hydatid cyst
Size of hydatid cyst?
5_10cm
More than 30cm sometimes
Explain layers of hydatid cyst?
What is hydatid sand?
Where the larval form develop in intermediate host of echinococcus granulosus ?
Liver or lungs mainly
Where the adult worm develop in definitive host of echinococcus granulosus?
Small intestines
Cystic hydatidosis locations?
60_70% liver(mostly right lobe)
20_25%lungs
7% brain
2%bones
7%kidneys
8%abdominal
Treatment of cystic echinococcosis?
What’s alternative to surgery in cystic echinococcosis?
PAIR
Prevention of cystic echinococcosis?
What’s the definitive host of echinococcus multilocularis?
Fox(vulpes,vulpes)
Or wolf or jackal
Intermediate host of echinococcus multilocularis?
Rodents
Human is also accidental host
