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SA Parasitology > Cestodes > Flashcards

Cestodes Flashcards

1
Q

Cyclophyllidean reproductive pore

A

Single genital pore

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2
Q

Pseudophyllidean reproductive pore

A

Male genital pore and uterine pore

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3
Q

Scientific name of cucumber seed tapeworm

A

Dipylidium caninum

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4
Q

Dipylidium caninum location in host

A

small intestine

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5
Q

Dipylidium caninum geographic location

A

worldwide

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6
Q

Dipylidium caninum intermediate host

A

fleas or dog louse

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7
Q

Dipylidium caninum definitive host

A

dogs, cats, and humans (mainly children)

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8
Q

Dipylidium caninum metacestode form

A

cysticercoid

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9
Q

Dipylidium caninum infective stage

A

cysticercoid

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10
Q

Dipylidium caninum prepatent period

A

2-3 weeks

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11
Q

Dipylidium caninum clinical signs

A

Usually not pathogenic, heavier infections can lead to diarrhea, constipation, or pot-bellied appearance

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12
Q

Dipylidium caninum diagnosis

A

See gravid proglottids in feces

Fecal flotation

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13
Q

Dipylidium caninum treatment

A

Praziquantel, espiprantel, fenbendazole

Control fleas in environment

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14
Q

Basic characteristics of taeniid tapeworms

A
  1. Large (several meters in length)
  2. Proglottids longer than wide
  3. Armed (usually)
  4. Single genital pore per proglottid
  5. Characteristic egg type
  6. Variety of metacestode stages
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15
Q

Scientific name of mutton tapeworm/measly mutton

A

Taenia ovis

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16
Q

Taenia ovis definitive host/location

A

Dogs; small intestine

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17
Q

Taenia ovis intermediate host/location

A

sheep, goats; skeletal, cardiac muscle

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18
Q

Taenia ovis metacestode type

A

cysticercus

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19
Q

Scientific name of ruminant tapeworm of dogs/abdominal bladderworm

A

Taenia hydatigena

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20
Q

Taenia hydatigena definitive host/location

A

dogs; small intestine

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21
Q

Taenia hydatigena intermediate host/location

A

sheep, goats; peritoneal cavity

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22
Q

Taenia hydatigena metacestode type

A

cysticercus

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23
Q

Scientific name of rabbit tapeworm/abdominal bladderworm

A

Taenia pisiformis

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24
Q

Taenia pisiformis definitive host/location

A

dogs; small intestine

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25
Q

Taenia pisiformis intermediate host/location

A

rabbites; peritoneal cavity

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26
Q

Taenia pisiformis metacestode type

A

cysticercus

27
Q

Scientific name of feline taeniid/strobilocercus of rats

A

Taenia taeniaeformis

28
Q

Taenia taeniaeformis definitive host/location

A

cats, other felids; small intestine

29
Q

Taenia taeniaeformis intermediate host/location

A

rats, mice; liver

30
Q

Taenia taeniaeformis metacestode type

A

strobilocercus

31
Q

Echinococcus granulosus definitive host/location

A

dogs, other carnivores; small intestine

32
Q

Echinococcus granulosus intermediate host/location

A

cattle, sheep, horses, pigs, humans; brain, liver, lung

33
Q

Echinococcus granulosus metacestode type

A

unilocular hyatid cyst

34
Q

Echinococcus multilocularis definitive host/location

A

dogs, cats, foxes; small intestine

35
Q

Echinococcus multilocularis intermediate host/location

A

rodents, humans; liver, lung, brain, other organs

36
Q

Echinococcus multilocularis metacestode type

A

multlocular hyatid cyst

37
Q

Scientific name of sheep coenurus/gid bladderworm

A

Taenia multiceps

38
Q

Taenia multiceps definitive host/location

A

dogs, foxes, coyotes; small intestine

39
Q

Taenia multiceps intermediate host/location

A

sheep, goats; brain, spinal cord

40
Q

Taenia multiceps metacestode type

A

Coenurus

41
Q

Scientific name of rabbit coenurus tapeworm/subcutaneous bladderworm

A

Taenia serialis

42
Q

Taenia serialis definitive host/location

A

dogs, foxes, coyotes; small intestine

43
Q

Taenia serialis intermediate host/location

A

rabbits; subcutaneous tissue

44
Q

Taeniid tapeworm diagnosis

A

fecal flotation

45
Q

Taeniid tapeworm treatment

A

Praziquantel, espiprantel, fenbendazole

46
Q

Spirometra mansoides geographic location

A

Southern U.S.

47
Q

Spirometra mansoides intermediate host

A
  1. Copepod

2. Frog, rat, snake, NOT a fish

48
Q

Spirometra mansoides metacestode stage

A
  1. Procercoid

2. Plerocercoid (sparganum)

49
Q

Spirometra mansoides prepatent period

A

7-14 days

50
Q

Spirometra mansoides definitive host/location

A

dog, cat, racoon; small intestine

51
Q

Spirometra mansoides clinical signs

A

Most asymptomatic

Vomiting, diarrhea, weight loss

52
Q

Is Spirometra mansoides zoonotic?

A

Yes, humans can develop spargana in muscle tissue from ingested copepod or from ingesting 2nd intermediate host

53
Q

Spirometra mansoides diagnosis

A

Fecal flotation

54
Q

Spirometra mansoides treatment

A

Praziquantel (high dose 20-25 mg/kg SID for two days)

55
Q

Scientific name of broad fish tapeworm

A

Diphyllobothrium latum

56
Q

Diphyllobothrium latum definitive host/location

A

Dogs, cats, polar bears, humans; small intestine

57
Q

Diphyllobothrium latum geographic location

A

Great Lakes of North America

58
Q

Diphyllobothrium latum intermediate host

A
  1. copepod

2. Freshwater fish (trout, pike, perch, walleye)

59
Q

Diphyllobothrium latum prepatent period

A

5-6 wk

60
Q

Diphyllobothrium latum clinical signs

A

Most asymptomatic

Vomiting, diarrhea, weight loss

61
Q

Is Diphyllobothrium latum zoonotic?

A

Yes, absorbs a large amount of vitamin B12, can cause anemia

62
Q

Diphyllobothrium latum diagnosis

A

Fecal flotation

63
Q

Diphyllobothrium latum treatment

A

Praziquantel

SA Parasitology (6 decks)

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