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Parasitology > Cestodes > Flashcards

Cestodes Flashcards

0
Q

Mode of Nutrition of Tapeworms since they are devoid of alimentary or vascular tract?

A

DIFFUSION from undigested food of the host

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1
Q

Tapeworms belonging to Order Pseudophyllidia.

A

Diphyllobothrium latum & Spirometra sp.

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2
Q

Manner of Fertilization of Tapeworms

A
  1. Self fertilization
  2. Fertilization across proglottids of same organism
  3. Cross fertilization with other tapeworm of same the species
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3
Q

Tapeworms are flattened…

A

Dorsoventrally

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4
Q

Pseudophyllidians lack oral suckers but uses _____ for attachement?

A

Sucking grooves

aka

Bothrium

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5
Q

Tapeworms with a rudimentary rostellum

A

Hymenolepis diminuta

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6
Q

Tapeworm with short, retractile rostellum

A

Hymenolepis nana

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7
Q

Arrangement of the genital pore of D. latum

A

on One side usually at the left of each proglottid

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8
Q

Arrangement of the genital pore of Cyclophylideans esp. Taenia sp.

A

Alternate arrangement in each proglottid

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9
Q

It has a bilaterally arranged common genital pore thus tagged as the double-pored tapeworm.

A

Dipyllidium caninum

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10
Q

Causes Jewish Housewive’s Disease

A

aka Diphyllobothriasis

Diphyllobothrium latum

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11
Q

How many suckers does a typical species under Cyclophyllidian have?

A

4

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12
Q

Part of the tapeworm which is composed of series of proglottids?

A

Strobila

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13
Q

Region where growth of the worm starts

A

Neck

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14
Q

Type of larvae of the Genus Hymenolepis?

A

Cercocystis

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15
Q

Hymenolepis species with eggs having 2 polar plugs from which FILAMENTS arise.

A

H. nana

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16
Q

Type of oncosphere/embryo of:

H. nana,
H. diminuta &
D. caninum

A

Hexacanth embryo

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17
Q

Type of larva of Dipyllidium caninum and Raillietina sp.

A

Cystecercus

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18
Q

IH of Railletina sp.

A

Ants

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19
Q

Dx stage of Raillietina and Spirometra

A

Live, tumbling worms on stool.

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20
Q

Shape of the scolex of Pseudophyllidians.

A

Spatulate

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21
Q

Type of larvae of D. latum

A

Plerocercoid

22
Q

aka Dwarf tapeworm

A

H. nana

23
Q

Smallest tapeworm

A

Echinococcus hydatidsis (?) hydatid cyst (?)

24
Q

IH of Echinococcus granulosus

A

Herbivores

25
Q

DH of Echinococcus sp. and habitat

A

SI of Dogs, Wolves

26
Q

Echinococcus larva is known as

A

Hydatid cyst

27
Q

In Echinococcus infection, humans serve as…

A

Intermediate hosts

28
Q

DOC in most tapeworm infection

A

Praziquantel

29
Q

Differentiate the scolex of H. nana from Echinococcus sp.

A

H. nana scolex is crowned with only one row of hooks while the Echinococcus scolex is crowned with 2 rows of hooks

30
Q

How are eggs of Dipyllidium caninum layed?

A

In packets, encapsulated eggs

31
Q

IH of Spirometra sp.

A

Cyclops

32
Q

Type of larva of Spirmetra sp.

A

Plerocercoid

33
Q

Type of proglottid containing a uterus filled with eggs

A

Gravid Progllotid

34
Q

aka Pork Tapeworm

A

Taenia solium

35
Q

Increases the surface area for absorption of the tegument (cuticle) of tapeworms.

A

Microtricia

36
Q

Type of larva of both Taenia sp.

A

Cystecercus

37
Q

Armed Tapeworms

A

H. diminuta

and

Taenia solium

38
Q

_____ hatch from D. latum eggs while _____ hatch from H. nana eggs.

A

Coracidia; Oncosphere

39
Q

aka Beef Tapeworm

A

Taenia saginata

40
Q

aka Fish tapeworm

A

Diphyllobothrium latum

41
Q

aka Dog Tapeworm

A

Dipyllidium caninum

42
Q

aka Rat Tapeworm

A

Hymenolepis diminuta

43
Q

True or False. T. saginata has SHORTER proglottids than T. solium.

A

False. Taenia saginata has LONGER proglottids than T. solium.

44
Q

Has a Qudrate-shaped scolex

A

Taenia saginata

45
Q

known, simple Dx method for T. solium and T. saginata which is also used in Dx of E. vermicularis

A

Scotch Tape Method

46
Q

Plerocercoid larva of Diphyllobothriid Tapeworm

A

Spargana

47
Q

Tx of Sparganosis

A

Surgery

48
Q

Habitat of both Taenia sp.

A

Upper Jejunum

49
Q

Type of larva with only ONE protoscolex

A

Cystecercus

50
Q

Larva with multiple protoscolexes

A

Cereous

51
Q

Tapeworm sp with humans as DH.

A

D. latum,
H. diminuta,
D. caninum,
T. saginata

52
Q

Tapeworm sp. with humans as IH or DH.

A

H. nana & T. solium

53
Q

Infective stage of Echinococcus sp?

A

Hydatid cyst

Parasitology (1 decks)

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