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Parasitology lec > Cestodes > Flashcards

Cestodes Flashcards

1
Q

Phylum

A

Platyhelminthes

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2
Q

Adult Worms appear as

A

flat and ribbon-like

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3
Q

Fresh specimens color

A

Whitish / pinkish in color

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4
Q

are cestodes monoecious or dioecious?

A

monoecious

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5
Q

What parts does cestodes lack?

A

mouth and gastrointestinal tract

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6
Q

They will be obtaining their nutrients through absorption or diffusion via __________.

A

tegument

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7
Q

is body covering of Tapeworms

A

Tegument

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8
Q

Habitat

A

Small Intestine (Adult Worms)

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9
Q

Attached onto the _____ of the small intestine

Habitat

A

lining

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10
Q

Eggs are __________ and _________, except for
Diphyllobothrium latum

A
  • non-operculated
  • embryonated
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11
Q

attachment organ / hold fast organ

A

SCOLEX

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12
Q

SCOLEX is Categorized as:

A
  • Acetabulate
  • Bothriate
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13
Q

Acetabulate

Presence of suckers or _______

A

acetabulum

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14
Q

Acetabulate

They are important for
attachment to the lining of the small intestine

A

acetabulum

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15
Q

Acetabulate

They also have the presence of a protruding structure called _________.

A

rostellum

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16
Q

Acetabulate

Rostellum can be armed meaning

A

with hooks

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17
Q

Acetabulate

Rostellum can be unarmed meaning

A

no hooks

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18
Q

Acetabulate

what type of tapeworm has acetabulate

A

true tapeworms

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19
Q

Bothriate

Appearance

A

Almond/Spatulate

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20
Q

Bothriate

it has this slit-like
grooves called ____________

A

bothria/bothrium

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21
Q

Bothriate

Bothriate are found in what kind of tapeworm

A

false tapeworms

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22
Q

region of growth

A

NECK

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23
Q

Below the neck is the tapeworm segments called ______.

A

proglottids

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24
Q

Type of proglottid

Nearest to the neck; no
developed reproductive
structures

A

Immature Proglottids

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25
Q

Type of proglottid

Found in the middle portion; has well-developed reproductive organs

A

Mature Proglottids

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26
Q

Type of proglottid

There are the testes, ovaries, uterus, vitellaria, and other reproductive structures.

A

Mature Proglottids

27
Q

Type of proglottid

Farthest from the neck; filled with eggs.

A

Gravid/Ripe Proglottids

28
Q

In true tapeworms, in gravid/ripe proglottid, the other reproductive organs, they have _________

A

degenerated

29
Q

Gravid/Ripe Proglottids

For False tapeworm, other reproductive organs may still be ______

30
Q

collection/chain of proglottids.

31
Q

The
formation of strobila

A

strobilation

32
Q

STROBILA

may detach

33
Q

STROBILA

may not detach

A

Anapolytic

34
Q

False Tapeworm

Order

A

Pseudophyllidea

35
Q

False Tapeworm

Shape

Scolex

A

Spoon shaped, almond shaped, spatulate

36
Q

False Tapeworm

Possess:

Scolex

A

2 slit like grooves (bothria)

37
Q

False Tapeworm

Strobila

A

Anapolytic
(Cannot detach)

38
Q

Branching structures of proglottid that may be important for the production of the egg shell

A

Vitellaria

39
Q

False Tapeworm

Vitellaria

A

Diffused with many follicles

40
Q

False Tapeworm

reproductive organs

Gravid proglottid

41
Q

False Tapeworm

Uterus

Gravid proglottid

42
Q

False Tapeworm

location

Uterine pore

A

Median Ventral Surface

43
Q

False Tapeworm

Ova

A
  • Oval
  • operculated
  • unembryonated
44
Q

False Tapeworm

Larval stages

A
  • Coracidium
  • Procercoid
  • Plerocercoid
45
Q

False Tapeworm

First Larval Stage That Will Emerge From An Embryonated Egg Of A False Tapeworm Under Ideal Conditions

Larval stages

A

Coracidium

46
Q

False Tapeworm

Ciliated Motile Larva That Emerges From The Egg

Larval stages

A

Coracidium

47
Q

False Tapeworm

Will Swim Towards The 1st Ih
(Microcrustaceans – Copepods)

Larval stages

A

Coracidium

48
Q

False Tapeworm

Ingested By Copepods, And Develops
To A Procercoid.

Larval stages

A

Coracidium

49
Q

False Tapeworm

Copepod Containing ___________ Is Ingested By Freshwater Fish

Larval stages

A

Procercoid

50
Q

False Tapeworm

Recovered In The 2nd IH

Larval stages

A

Plerocercoid

51
Q

False Tapeworm

Humans must ingest fish containing _______ larva to get the infection

Larval stages

A

plerocercoid

52
Q

False Tapeworm

Intermediate hosts

Larval stages

A

1st IH: Copepods
2nd IH: Freshwater fish

53
Q

True Tapeworm

Order

A

Cyclophyllidea

54
Q

True Tapeworm

Shape

Scolex

A

Quadrate, Rhomboidal, Conical

55
Q

True Tapeworm

Posseses:

Scolex

A
  • rostellum
  • suckers/acetabulum (4)
56
Q

True Tapeworm

Strobila

A

Apolytic (Can detach)

57
Q

True Tapeworm

Vitellaria

A

Compact and separate

58
Q

True Tapeworm

Reproductive Organs

Gravid proglottid

A

Degenerate

59
Q

True Tapeworm

Uterine pore

A

Absent; has a genital pore at the lateral portion

60
Q

True Tapeworm

Ova

A

Spherical, non operculated, mature

61
Q

True Tapeworm

Larval stages

A
  • Cysticercoid
  • Cysticercus
  • Hydatid Cyst
62
Q

True Tapeworm

It Would Only Require 1 Type Of _____ and ________ In The Life Cycle.

A

Larva and Intermediate host

63
Q

True Tapeworm

To Get The Infections, Some Tapeworms Need To Ingest The ________

A

Embryonated Egg

64
Q

True Tapeworm

Intermediate hosts

A

1 IH: lower forms of animals or arthropods

Parasitology lec (24 decks)

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