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VT 110 Parasitology& Pathology > Nematodes > Flashcards

Nematodes Flashcards

1
Q

Common name for Spirocerca lupi

A

Esophageal worm

“Paper clip “ egg shape

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2
Q

Spirocerca lupi

What is the definitive host, location, diagnostic stage, and test

A
  1. Canines and felines
  2. Esophageal wall
  3. Eggs in feces or vomitus
  4. Fecal float
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3
Q

What is the common name for Physaloptera species

A

Stomach worm

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4
Q

For Physaloptera species

What is the definitive host, location, diagnostic stage, and test

A
  1. Canines and felines
  2. attached to mucosa of stomach
  3. Egg (think-shelled, contains a larva)
  4. Fecal flotation
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5
Q

for Ascarids

What are the scientific names for Canines and Felines?

which are Zoonotic?

A
  • Canines- Toxocara canis, Toxascaris leonine
  • Felines- Toxocara cati, Toxascaris leonine

Toxocara canis and Toxocara cati

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6
Q

For the Ascarids

What is the common name for Toxocara canis, Toxocara cati

A

Roundworm

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7
Q

For Ascarids

what is the definitive host, location, diagnostic stage, and test

Prepatent period

A
  1. Canines and felines
  2. small intestine
  3. Eggs
  4. Fecal Flotation

T. canis 2-4 wks T. cati 8wks

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8
Q

For Ascarids

Wwhat is the transmission route

4 of them

A
  1. ingestion of egg w/ infective larva
  2. ingestion of tissues with larvae
  3. Transplacental (T. canis)
  4. Transmammary (T. canis and T. cati)
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9
Q

What life cycle is this?

A

The Ascarid

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10
Q

What is the common name for Baylisascaris procyonis?

Zoonotic?

A

Raccon roundworm

Yes

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11
Q

For Baylisascaris procyonis

What is the definitive host, Location, diagnostic stage and test

what is the common name

A
  1. Raccoon
  2. Small intestine (CNS in incidental hosts)
  3. Egg
  4. Fexal float

Raccon roundworm

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12
Q

WHat is the common name of Ancylostoma spp. and Uncinaria stenocephala

Zoonotic?

A

Hookworm

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13
Q

Ancylostoma spp.

What is the definitive host, location, Diagonostic stage and test

Zoonotic?

A
  1. Canine (Ancylostoma spp and Uncinaria) Feline (Ancylostoma spp.)
  2. small intestine
  3. Egg
  4. Fecal float

black tarry stool

yes

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14
Q

Which nematode does this life cycle belong to

A

the hookworm

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15
Q

What is the common name for Strongyloides spp.?

Zoonotic?

A

Intestinal threadworms

Yes

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16
Q

Strongyloides spp.

What are the definitive hosts, location, diagnostic stage and test

Transmission route

A
  1. Caines, felines, humans
  2. Small intestine
  3. Larva, egg
  4. Fecal float, direct smear, and Baermann’s

Through the skin, transmammary

17
Q

What is the common Name for Trichuris spp.

Zoonotic?

18
Q

Trichuris spp.

What is the scientific name for the Canine and Feline

A
  • Canine - Trichuris vulpis
  • Feline - T. campanula and T. serrata
19
Q

Trichuris spp.

what are the definitive hosts, location, diagnostic stage and test

Transmission route

length of Prepatent period?

A
  1. Canine and feline
  2. wall of cecum and colon
  3. Egg (passed every 3rd day) and adult worm
  4. Fecal float, antigen test

ingestion of egg

2-3 month

20
Q

What nematode does this life cycle belong to

WHich stage is infective

A

Whipworm

L2

21
Q

What is the common name for Dirofilaria immitis?

Zoonotic?

A

Heartworm

Yes

22
Q

Dirofilaria Immitis

What is the definitive host, location, diagnostic stage and test

Prepatent period

transmission route?

A
  1. Canine
  2. R ventricle and pulmonary arteries
  3. Microfilaria, adult female
  4. Modified Knotts test, Antigen test, radiography

6 months

bite of infective mosquito

23
Q

which nematode does this life cycle belong to

infective stage

A

Heartworm

L3

24
Q

What is the common name for Aelurostrongylus abstrusus

A

Feline lungworm

25
Q

Aelurostrongylus abstrusus

What is the definitive host, location, diagnostic stage and test

prepatent period

Transmission route

A
  1. Feline
  2. Respiratory bronchioles & alveolar ducts
  3. Larva
  4. Baerman’s, fecal float

30 days

ingestion of larvae

26
Q

What is the common name for filaroides spp.

A

Canine lungworm

27
Q

Filaroides spp.

What is the definitive host, location, diagnostic stage and test

Transmission route

A
  1. Canine
  2. Trachea, lung
  3. larva
  4. Baermann’s, and fecal float

Ingestion of infective L1 Larvae

28
Q

What is the common name of Eucoleus ( Capillaria) spp.

A

Respiratory capillarid

29
Q

Eucoleus ( Capillaria) spp.

What are the definitive host, location, diagnostic stage and test

Transmission route

A
  1. Canine - E. aerophilus, E. boehmi, Feline - E. aerophilus
  2. Upper respitory
  3. Egg
  4. Fecal flotation

Ingestion of ova

30
Q

What is the common name of the Dioctophyma renale

Zoonotic?

A

Canine giant kidney worm

31
Q

Dioctophyma renale

What is the definitive host, location, diagnostic stage and test?

Transmission route?

A
  1. Canine
  2. R kidney
  3. Egg
  4. centrifugation of urine & examination of urine sediment

ingestion of infective larvae within annelid worm

32
Q

What is the Common name of Rhabditis strongyloides

A

Free living soil nematodes

33
Q

Rhabditis strongyloides

What is the definitive host, location, diagnostic stage and test

Transmission route

A
  1. Canine
  2. Superficial layer of the skin
  3. Larva, adult
  4. Skin scraping

L1 larvae enter directly through the skin

34
Q

What is the common name of Acanthocheilonema (Dipetalonema) reconditum

A

Canine subcutaneous filarial worm

35
Q

Acanthocheilonema reconditum

What is the definitive host, location, diagnostic stage and test

transmission route

A
  1. Canine
  2. Subcutaneous tissues
  3. Larva
  4. Modified knotts test on blood sample

Ingetion of infected flea

36
Q

What is the common name for Dracunculus insignis

Zoonotic?

A

Guinea worm

yes

37
Q

Dracunculus insignis

What are the definitive host, location, diagnostic stage and test

intermediate host

Transmission route

A
  1. Canine and human
  2. Subcutaneous tissues
  3. Larva
  4. Centrifugation of water sample

small aquatic crustaceans

ingestion of intermediate host- drinking water w/ infected crustaceans

38
Q

What is the common name for Thelazia californiensis

39
Q

Thelazia californiensis

What are the definitive host, location, diagnostic stage and test

intermediate host

Transmission route

A
  1. Canine and feline
  2. conjunctival sac and lacrimal duct
  3. Adult
  4. Adult parasites recovered from conjunctival sac and lacrimal duct

Face fly

L3 larvae passed to animal by intermediate host when feeding

VT 110 Parasitology& Pathology (6 decks)

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