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Parasitology Midterms > Phasmids 4 > Flashcards

Phasmids 4 Flashcards

0
Q

Without caudal chemoreceptors

A

Aphasmids

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1
Q

With caudal chemoreceptors

A

Phasmids

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2
Q

Angiostrongylus cantonensis

What kind of worm

A

Rat lungworm

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3
Q

Angiostrongylus cantonensis

Also known as

A

Parastrongylus cantonensis

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4
Q

Angiostrongylus cantonensis

The most common cause of

A

Eosinophilic meningoencephalitis

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5
Q

Angiostrongylus cantonensis

Incidental host

A

Human

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6
Q

Uterus cols around the blood-filled intestines

A

Barbers pole appearance

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7
Q

Angiostrongylus cantonensis

Adult

A

Tapering on both ends

Lacking a buccal capsule

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8
Q

Angiostrongylus cantonensis

Female

A

Posterior end is blunt horn shape

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9
Q

Angiostrongylus cantonensis

Male

A

Posterior end is bent ventrally

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10
Q

Angiostrongylus cantonensis

Infective in human

A

L2 and L3

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11
Q

Angiostrongylus cantonensis

Infective stage

A

L3

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12
Q

Angiostrongylus cantonensis

How many molting

A

2

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13
Q

Angiostrongylus cantonensis

Intermediate host

A

Snails and slugs

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14
Q

Angiostrongylus cantonensis

Paratenic host

A

Crabs

Shrimps

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15
Q

Angiostrongylus cantonensis

Mode of transmission

A

Ingestion of improperly cooked snails, slugs, prawns, fish

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16
Q

Angiostrongylus cantonensis

Incubation periof

A

1-3 weeks

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17
Q

Angiostrongylus cantonensis

Clinical manifestation

A

Eosinophilic meningitis

Ocular invasion

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18
Q

Angiostrongylus cantonensis

Diagnosis

A

Eosinophilia

CSF

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19
Q

Angiostrongylus cantonensis

Both eggs and larva can be identified by

A

Biopsy

Surgical specimens

20
Q

Angiostrongylus cantonensis

Treatment

A

Thiobendazole

21
Q

Angiostrongylus costaricensis

A

Egg hatch in the ileum

22
Q

Angiostrongylus costaricensis

Causes

A

Eosinophilic enteritis

23
Q

Angiostrongylus costaricensis

Mimics

A

Appendicitis

24
Q

Gnathostoma spinigerum

Incidental host

A

Human

25
Q

Gnathostoma spinigerum

1st intermediate host

A

Crustacean

Cyclops

26
Q

Gnathostoma spinigerum

2nd intermediate host

A

Fish
Frog
Snake

27
Q

Gnathostoma spinigerum

Paratenic host

A

Birds
Snakes
Frogs

28
Q

Gnathostoma spinigerum

Definitive host

A

Pigs
Cats
Dogs
Wild animals

29
Q

Gnathostoma spinigerum

Deposit eggs that are __________ when passed in the feces

A

Unembryonated

30
Q

Gnathostoma spinigerum

Eggs become embryonated in

A

Water

31
Q

Gnathostoma spinigerum

Diagnostic

A

Cutaneous
Ocular
Visceral
Neurological

32
Q

Gnathostoma spinigerum

Mode of transmission

A

Ingestion of improperly cooked fish and poultry

33
Q

Gnathostoma spinigerum

Clinical manifestation

A

Curaneous larva migrans
Migrating edema
Visceral larva migrans

34
Q

Gnathostoma spinigerum

Diagnosis

A

Leukocytosis with high eosinophilia
Removal of ID worm
Intradermal test
Excision biopsy

35
Q

Gnathostoma spinigerum

Treatment

A

Albendazole
Ivermectin

No DOC

36
Q

Dracunculus medinensis

What kind of worm

A

Guinea worm

37
Q

Dracunculus medinensis

Usually in

A

3rd world countries

38
Q

Dracunculus medinensis

Definitive host

A 
Human
Wolves
Horses
Cows
Leopards
39
Q

Dracunculus medinensis

Intermediate host

A

Cyclops

Copepods

40
Q

Dracunculus medinensis

Infective stage to human

A

L3

41
Q

Dracunculus medinensis

Emergent worms

A

Severe pain
Allergic reaction
Blisters

42
Q

Dracunculus medinensis

Non emergent worms

A

Arthritis
Cellulitis
Necrosis
Calcification of worm

43
Q

Dracunculus medinensis

Mode of transmission

A

Drinking unfiltered water containing copepods

44
Q

Dracunculus medinensis

Life cycle

A 
Drink
Copepods die release larva
Male worms die, female migrate in subcu
1 year female induces blister, lower extremity
Lesion contact with water, release L1
L1 ingested by a copepod 
2 weeks and 2 molts
Infective stage L3
45
Q

Dracunculus medinensis

Clinical manifestation

A

Localized but incapacitating
Sterile abscess
Joint pains
Blister whitish filament

46
Q

Dracunculus medinensis

Diagnosis

A

No serological test available

May be different before worm emerges

47
Q

Dracunculus medinensis

Treatment

A

Thiabendazole or metronidazole

No DOC

Parasitology Midterms (6 decks)

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