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Parasitology (Lecture) > Cestodes (PPT) > Flashcards

Cestodes (PPT) Flashcards

1
Q

Cestodes is otherwise known as:

A

Tapeworms

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2
Q

Cestodes constitutes a class of

A

Platyhelminthes

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3
Q

It is an anterior organ of attachment

A

Scolex

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4
Q

A chain of segments also known as strobila

A

Proglottids

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5
Q

It is elongated and protrusible structure situated in the center of the scolex

A

Rostellum

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6
Q

It is the organ of growth

A

Neck

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7
Q

Also known as false suckers

A

Bothria

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8
Q

It is an elongated mid-ventral and mid-dorsal grooves found in the spindle-shaped scolices of Psuedophyllidean worms

A

Bothria

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9
Q

Also known as true suckers

A

Bothridia

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10
Q

It is a muscular projections from the scolex and may have leaf-like margins

A

Bothridia

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11
Q

It is known as the ventral suckers

A

Acetabulum

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12
Q

It is a cup-shaped sucking disk with muscular wall

A

Acetabulum

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13
Q

Adult tapeworms maybe differentiated through the following features:

A
  1. Scolices or proglottids
  2. Taxonomic features:
    - Scolex
    - Hooks
    - Rostellum
    - Internal morphology for proglottids
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14
Q

A living tissue (syncitial membrane) which serves as a protective and digestive organ

A

Teguments

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15
Q

A minute microvilli which covers the tegument of the cestodes

A

Mictrotriches

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16
Q

A layer of carbohydrates containing macromolecules

A

glycocalyx

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17
Q

Inhibits host chymotrypsin, pancreatic lipase trypsin and to absorb bile salts

A

glycocalyx

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18
Q

Muscle cells of cestodes are:

A
  • are characteristically slow-contracting
  • Non-striated muscles and lacks T tubules
  • Contains myocytons
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19
Q

Secretions found in the parenchyma of cestodes

A

Calcareous corpuscles

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20
Q

The calcareous corpuscles measures ____ um in diameter

A

12-32

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21
Q

Calcareous corpuscles contains inorganic components such as:

A
  • calcium
    -magnesium carbohydrates
  • calcium phosphate
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22
Q

It’s function is to hypothesized as being buffer against organic acids produced during metabolism

A

Calcareous corpuscles

23
Q

Its function is as a depots for carbon dioxide and ion or they may be even excretory products

A

Calcareous corpuscle

24
Q

Order Pseudophyllidea or Cyclophyllidea:

Scolex with bothria, with or without hooks

A

Order Pseudophyllidea

25
Q

Order Pseudophyllidea or Cyclophyllidea:

Scolex: usually 4 suckers

A

Order Cyclophyllidea

26
Q

Order Pseudophyllidea or Cyclophyllidea:

Neck: present or absent

A

Order Pseudophyllidea

27
Q

Order Pseudophyllidea or Cyclophyllidea:

Rostellum: present or absent

A

Order Cyclophyllidea

28
Q

Order Pseudophyllidea or Cyclophyllidea:

Strobila: varibale

A

Order Pseudophyllidea

29
Q

Order Pseudophyllidea or Cyclophyllidea:

Strobila: usually with distinct segments, monoecious or rarely dioecious

A

Order Cyclophyllidea

30
Q

Order Pseudophyllidea or Cyclophyllidea:

Proglottids: anapolytic

A

Order Pseudophyllidea

31
Q

Order Pseudophyllidea or Cyclophyllidea:

Genital pore: lateral

A

Order Cyclophyliidea

32
Q

Order Pseudophyllidea or Cyclophyllidea:

Gentical pore: lateral or dorsal

A

Order Pseudophyllidea

33
Q

Order Pseudophyllidea or Cyclophyllidea:
Testes: numerous

A

Order Pseudophyllidea

34
Q

Order Pseudophyllidea or Cyclophyllidea:

Vetilline gland compact, single, posterior to ovary

A

Order Cyclophyllidea

35
Q

Order Pseudophyllidea or Cyclophyllidea:

Ovary: posterior, Vitellaria follicular, lateral or cortical and encircling other organ

A

Order Pseudophyllidea

36
Q

Order Pseudophyllidea or Cyclophyllidea:

Uterine pore: absent

A

Order Cyclophyllidea

37
Q

Order Pseudophyllidea or Cyclophyllidea:

Uterine pore: present

A

Pseudophyllidea

38
Q

Order Pseudophyllidea or Cyclophyllidea:

Parasites of: amphibians, reptiles, birds and mammals

A

Cyclophyllidea

39
Q

Order Pseudophyllidea or Cyclophyllidea:

Parasite of fish, amphibians, reptiles, birds and mammals

A

Pseudophyllidea

40
Q

Important family of the order pseudophylidea

A

Diphyllothriidea

41
Q

Order Pseudophyllidea or Cyclophyllidea:

False tapeworm

A

Pseudophyllidea

42
Q

Order Pseudophyllidea or Cyclophyllidea:

True tapeworm

A

Cyclophyllidea

43
Q

Order Pseudophyllidea or Cyclophyllidea:

example: D. latum

A

Pseudophyllidea

44
Q

Order Pseudophyllidea or Cyclophyllidea:

example: all except D. latum

A

Cyclophyllidea

45
Q

Order Pseudophyllidea or Cyclophyllidea:

scolex: spoon-shaped with slit-like sucking grooves called bothria

A

Pseudophyllidea

46
Q

Order Pseudophyllidea or Cyclophyllidea:

With 4 cup-like suckers

A

Cyclophyllidea

47
Q

Order Pseudophyllidea or Cyclophyllidea:

Anapolytic (don’t shed segments_

A

Pseudophyllidea

48
Q

Order Pseudophyllidea or Cyclophyllidea:

Apolytic (shed segments)

A

Cyclophyllidea

49
Q

Order Pseudophyllidea or Cyclophyllidea:

Ova: operculated, immature when land

A

Pseudophyllidea

50
Q

Order Pseudophyllidea or Cyclophyllidea:

Ova: Non-operculated, embryonated

A

Cyclophyllidea

51
Q

Larval stages of Pseudophyllidea

A
  1. coracidium
  2. procercoid
  3. plerocercoid (IS)
52
Q

Larval stages of Cyclophyllidea

A
  1. cysticercus
  2. cysticercoid
  3. hydatid
53
Q

Intermediate host of pseudophyllidea

A

2

54
Q

Intermediate host of cyclophyllidea

A

1 only

Parasitology (Lecture) (11 decks)

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