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Parasitology > Nematodes > Flashcards

Nematodes Flashcards

1
Q

Most nematodes are separate sexes, called

A

Dioecious

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2
Q

Describe an ascaroid egg

A

Round with a thick egg wall and a single cell stage

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3
Q

Describe a spiruoid egg

A

Slightly ovular with a thin wall and 1st stage larva

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4
Q

Describe trichostrongyle eggs

A

Ovular shape with the morula stage and a thin wall

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5
Q

Describe Trichinelloid eggs

A

Football shaped with 2 caps t the wnd

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6
Q

Which nematode has a trichinelloid egg?

A

Whipworm

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7
Q

Which nematode has a spiruoid egg?

A

Esophageal worm of dogs

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8
Q

Which nematode has ascaroid eggs?

A

Canine roundworm

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9
Q

Which nematode has. Trichostrongyle egg?

A

Hookworm

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10
Q

Which nematode is larviparous?

A

Lungworm of cats

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11
Q

Which stage is the common infection stage for nematodes?

A

L3

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12
Q

What is the common name for Spirocerca lupi?

A

Esophageal worm of dogs and cats

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13
Q

What is the common name for Physaloptera?

A

Stomach worms of canine and feline

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14
Q

What are adverse signs of Physaloptera and what does it eat?

A

Vomiting, anorexia and dark tarry stools . Eats blood and tissue from gastric mucosa.

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15
Q

What is the common name for ollulanus tricuspis?

A

Feline trichostrongyle

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16
Q

How iis ollulanus tricuspis identified?

A

Examining t he cat’s vomits under a dissecting or compound microscope or modified Sheather flotation solution

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17
Q

What is the genus name for feline and canine roundworms?

A

Toxocara

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18
Q

Where does toxocara live?

A

Small intestine, free swimming

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19
Q

What are adverse signs of toxocara infection?

A

Vomiting, diarrhea, constipation

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20
Q

What is the common name for the Ancylostoma?

A

Hookworm

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21
Q

How are hookworms transmitted?

A

Ingesting eggs, across placenta, through mammary glands and through skin

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22
Q

Which nematode causes anemia and black tarry stools?

A

Hookworms

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23
Q

Which nematode is parthenogetic?

A

Strongyloides, or intestinal threadeorm

24
Q

What do intestinal threadworms infect?

A

Cats, dogs and humans

25
Q

What is the common name of Trichuris?

A

Whipworm

26
Q

Where do whipworms live?

A

Cecum and colon

27
Q

How many days are the whipworm eggs passed out in feces?

A

Every 3 days

28
Q

What is the common name for Enterobius vermicularis?

A

Human pinworm

29
Q

What are larva of heartworms calledm

A

Microfilaria

30
Q

What is the scientific name for heartworm?

A

Dirofilaria Immitis

31
Q

Which test do you use to test for heart worm microfilaria?

A

Modified knott’s tedt

32
Q

Which tests you use to identify adult heart worms?

A

ELISA test

33
Q

Which other blood parasite does heartworm have to be differentiated from?

A

Acanthocheilonema reconditum

34
Q

What are symptoms of heartworms?

A

Exercise intolerance, right sided heart enlargement, and abdominal ascites

35
Q

What is the common name for aelurostrongyle abstrusus?

A

Feline lungworm

36
Q

What is the common name for Oslerus?

A

Canine lungworm

37
Q

Where do canineungworms live?

A

Trachea, lung parenchyma, and bronchioles

38
Q

Where do feline lungworms live?

A

Respiratory bronchioles and alveolar ducts

39
Q

What is the largest parasitic nematode?

A

Canine giant kidney worm

40
Q

What is the canine giant kidney worm scientific name?

A

Dioctophyma renale

41
Q

What does the giant canine kidney worm eat?

A

Parenchyma of the kidney

42
Q

What is the common name for Thelazia?

A

Eye worm

43
Q

Which animal does Gongylonema pulchrum infect?

A

Ruminants and sometimes pigs and hirses

44
Q

What is the common name of Gongylonema pulchrum?

A

Esophageal worm of ruminants

45
Q

What is the common name of strongyloides papillosus

A

Bovine intestinal threadworm

46
Q

What is the common name for Dictyocaulus?

A

Lungworm of ruminants

47
Q

What is the common name for Habronema and Draschia?

A

Equine stomach worms

48
Q

Where do parascaris equorum live?

A

In the horse’s small intestine

49
Q

Where do Strongylus of horses live?

A

Large intestine

50
Q

Which group of equine strangles are more pathogenic?

A

Large

51
Q

What is the common name for Oxyuris equi?

A

Equine pinworm

52
Q

What is another name for cutaneous habronemiasis and what causes it?

A

Summer sores caused by Habronema

53
Q

Which parasite can be observed in pig urine?

A

Stephanurus dentatus

54
Q

Which parasite lives encysted in muscle and must be found in microscope?

A

Trichinella spiralis

55
Q

What are non pathogenic worms that live freely in the abdominal cavity?

A

Setaria equina

Parasitology (4 decks)

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