Cestodes Flashcards

1
Q

[4] The body consist of the following:

A
  1. Scolex
  2. Neck
  3. Proglottids
  4. Strobila
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2
Q

[3] Classifications of segments.

A
  1. Immature
  2. Mature
  3. Gravid
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3
Q

[2] Larval forms

A
  1. Solid
  2. Bladder
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4
Q

[2] Solid larvae

A
  1. Procercoid
  2. Plerocercoid
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5
Q

Relatively globular with the scolex invaginated into solid body and with cercomere.

[solid larvae]

A

Procercoid

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6
Q

Elongated with the scolex free or may be invaginated into the neck.

[solid larvae]

A

Plerocercoid

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7
Q

[4] Bladder type of larvae

A
  1. Cysticercoid
  2. Cysticercus
  3. Echinococcus
  4. Coenurus
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8
Q

w/ small anterior body into which the scolex is invaginated and frequently with a solid and elongated caudal portion.

[bladder]

A

Cysticercoid

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9
Q

w/ a head invaginated into a proximal portion of the large bladder. Contains single scolex only.

[bladder]

A

Cysticercus

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10
Q

w/ germinal epithelium where smaller cyst originate each of which contains small scolices.

[bladder]

A

Echinococcus

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11
Q

w/ germinal epithelium from where the protoscolices arise.

[bladder]

A

Coenurus

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12
Q

Producing passive obstruction, migration to unusual sites and competition with the nourishment of the host.

[stage of development]

A

Adult stage

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13
Q

More likely serious because larvae may be lodged in critical foci such as the brain, eyes or elsewhere and may grow to large masses producing pressure defects on adjacent structures.

[stage of development]

A

Larval stage

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14
Q

Common name of Taenia saginata.

A

Beef tapeworm

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15
Q

Common name of Taenia solium

A

Pork tapeworm

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16
Q

Counting of lateral branches.

A

India ink

17
Q

India ink: counting of lateral branches.

A

Taenias’

18
Q

It is found worldwide.

A

Taenia solium

19
Q

Found primarily in cosmopolitan areas.

A

Taenia saginata

20
Q

Adult “Taiwan” Taenia resembles adult T. saginata but by the appearance of the cysticercus it is close to T. solium.

A

Taenia asiatica

21
Q

Common name of Hymenolepis diminuta

A

Rat tapeworm

22
Q

Protection of foods from rat droppings and from intermediate host insects.

A

Hymenolepis diminuta

23
Q

Common name of Hymenolepis nana.

A

Dwarf tapeworm

24
Q

Most common tapeworm recovered in the US.

A

Hymenolepis nana

25
Q

Found worldwide mainly among children.

A

Hymenolepis nana

26
Q

Tropical and subtropical climates worldwide.

A

Hymenolepis nana