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parasitology > Helminthology2 > Flashcards

Helminthology2 Flashcards

Cestoda(echinococosis_hydatidosis)

1
Q

Give me two orders of cestoda

A

Cyclophyllidea_ psedophyllidea

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2
Q

Give me examples of cyclophyllidea

A
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3
Q

Which part of cestoda plays a role in absorption tract?

A

Tegument( outer layer of body)
Microthorxincresse absorption area

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3
Q

Give me examples on pseudophyllidea

A
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4
Q

What increase absoption area?

A

Microthorix

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5
Q

What types of mouths or attachment sites cestoda has?

A

Suckers/bothria

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5
Q

What’s range cestoda length can be?

A

Few millimeters to 10 meters or 30

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6
Q

What’s the difference between egg and larva in cestoda?

A

Egg hatch into larva stage (intermediate host)

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7
Q

What egg contains?

A

Embryo and 6 booklets
Onchoshpere

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8
Q

What is onchoshpere?

A

Cestoda egg

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9
Q

What is metacestode?

A

Larva stage in intermediate host

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10
Q

Which diseases caused by larva stage of cestoda?

A
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11
Q

What hydatid disease also called?

A

_hydatid
_hydatidosis
_human echinococcosis

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12
Q

What hydatid disease caused by?

A

Larval stage of genus echinococcus granulosus tapeworm

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13
Q

Is echinococcosis zoonotic?

A

Yes

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14
Q

List the important species of echinococcus

A
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15
Q

Give 2 examples on human echinococcosis

A

.Cystic(hadatid)
.Alveolar

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16
Q

What cause alveolar echinococcosis?

A

E. Multilocularis

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17
Q

What tapeworm cause the most common type of human E.?

A

S.L. or echinococcus granulosus sensu lato

18
Q

What S.L. represent?

A

The species complex

19
Q

What the most dominant genotypes in S.L.?

A

S.S. echinococcus granulosus sensu stricto
, G1_G3

20
Q

Whats the most common genotype of S.L.?

A

G1

21
Q

Hiw many genotypes does S.L. have?

A

10

22
Q

Where does echinococcus granulosus common?

A

In all continents

23
Q

Definitive host of echinococcus granulosus?

A

Carnivoes
(Dogusually fox, coyotes,hyenas, canids,felida,wolves)

24
Q

Intermediate host of echinococcus granulosus?

A

Herbivorous &hoofed animles& livestock &humans
(Sheep,goat, cattle,deer,pig,wallabies,camels, kangaroos,horse,moose)

25
Q

Most common intermediate host domestic cycle of echinococcus granulosus?

A

Farm_dog to sheep cycle

26
Q

What is the accidental host in echinococcus granulosus?+ How

A

Human
(Contact with definitive host-ingestion, geophagiafeces)

27
Q

Risk factors of echinococcus granulosus?

A

_ownership of livestock
_agriculture
_ pastoralism
_occupations
_poor hygiene
_slaughtering

28
Q

Morphology of adult echinococcus granulosus

A
29
Q

Size of adult echinococcus granulosus?

A

3_8mm

30
Q

How long does adult echinococcus granulosus live?

A

6_30months

31
Q

Morphology of hydatid cyst

A
32
Q

Size of hydatid cyst?

A

5_10cm
More than 30cm sometimes

33
Q

Explain layers of hydatid cyst?

A
34
Q

What is hydatid sand?

A
35
Q

Where the larval form develop in intermediate host of echinococcus granulosus ?

A

Liver or lungs mainly

36
Q

Where the adult worm develop in definitive host of echinococcus granulosus?

A

Small intestines

37
Q

Cystic hydatidosis locations?

A

60_70% liver(mostly right lobe)
20_25%lungs
7% brain
2%bones
7%kidneys
8%abdominal

38
Q

Treatment of cystic echinococcosis?

A
39
Q

What’s alternative to surgery in cystic echinococcosis?

A

PAIR

40
Q

Prevention of cystic echinococcosis?

A
41
Q

What’s the definitive host of echinococcus multilocularis?

A

Fox(vulpes,vulpes)
Or wolf or jackal

42
Q

Intermediate host of echinococcus multilocularis?

A

Rodents
Human is also accidental host

43
Q
A

parasitology (6 decks)

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