CESTODES Flashcards

1
Q

Gen. Characteristics of Cestodes

A

General Characteristics:

  1. Does not have a digestive tract
  2. Hermaphroditic
  3. Bilateral symmetry
  4. Segmented
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2
Q

coracidium

A

aquatic development of embryo

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3
Q

Cyclophyllidean species

A

Taenia spp. Dipylidium,
Hymenolepis, Raillietina,
Echinococcus

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4
Q

Pseudophyllidean

A

Diphyllobothrium,

Spirometra

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5
Q

T. solium adult specie can be distinguished. TRUE or FALSE?

A

false

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6
Q

Proglottids/Strobila of T. solium

A

7-15 lateral branches (dendritic

or fingerlike)

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7
Q

smallest tapeworm

A

Hymenolepis nana / dwarf tapeworm

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8
Q

Y shaped hooklets

A

Hymenolepis nana / dwarf tapeworm

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9
Q

IS of T. saginata

A

cysticercus bovis

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10
Q

dichotomous/ tree-like

A

T. saginata

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11
Q

has direct and indirect infective stages

A

H. nana / dwarf tapeworm

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12
Q

direct IS of H nana

A

Eggs

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13
Q

Indirect IS of H nana

A

cercocystis.cysticercoid larva

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14
Q

rat tapeworm

A

Hymenolepis diminuta

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15
Q

fan like arrangement of hook

A

Hymenolepis diminuta/rat tapeworm

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16
Q

IS of H. diminuya

A

cercocystis.cysticercoid larva

17
Q

other name/s of Dipylidium caninum

A

(dog tapeworm, cat

tapeworm, double-pored tapeworm)

18
Q

rose

thorn shaped hooks

A
Dipylidium caninum (dog tapeworm, cat
tapeworm, double-pored tapeworm)
19
Q

strobila characteristics of Dipylidium caninum

A

pumpkin seed/melon seed/rice grain-shaped

20
Q

Infective stage Dipylidium caninum

A

cercocystis/ cysticercoid larva

21
Q

D. latum new name

A

Dibothriocephalus latus

22
Q

D. latum other names

A

fish

tapeworm, broad fish tapeworm

23
Q

strobila of D. latum

A

rosette like coiled uterus

24
Q

1st intermediate host of D. latum

A

Copepods (cyclops/diaptomus) -procercoid larva

25
Q

2nd intermediate host: of D. latum

A

freshwater fish- plerocercoid

larva

26
Q

IS of D. latum

A

plerocercoid

27
Q

resembles Taenia spp. egg

A

Echinococcus granulosus

28
Q

IS stage of E. granulosus in intesine

A

embryonated egg ingested that becomes Hydatid cyst

29
Q

diagnostic stage of E. granulosus

A

cyst

30
Q

tests for E. granulosus

A

casoni intradermal test (>5cm for 30

mins) bentonite flocculation test

31
Q

adult forms of this cestode are mistaken for adult Diphyllobothrium latum

A

Sparganosis