Exam II - Image Identification Flashcards by Chris Bessette

Q

Identify the parasite. Is this oocyst sporulated or unsporulated?

A

Eimeria leukarti - sporulated

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Q

Identify the parasite. What life cycle stage is infective?

A

Parascaris equorum - L₂ in egg is infective

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Q

Identify the parasite.

A

Ixodes spp

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Q

Identify the parasite. What life cycle stage is present?

A

Tabanus spp adult

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Q

Identify the parasite. What life cycle stage is present?

A

Fasciola hepatica egg

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Q

Identify the parasite.

A

Setaria equina

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Q

Identify the parasite. What parasite does this fly mechanicly transmit? What parasite are they the IH for?

A

Stomoxys calcitrans.

Mechanical Vector for - antherax, equine infectious anemia, tryponosomes

IH for Habroneman muscae –> cause summer sores

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Q

Damn, what’s that on his hand?!?!

A

Culicoides spp. - “No-see-ums”

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Q

Identify the parasite. What life cycle stage is present? Common name?

A

Strongyloides westeri adult - threadworm

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Q

Identify the parasite. What life cycle stage is present? How would you diagnose this parasite?

A

Sarcoptes scabiei adult

Skin scraping

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Q

What is the common name of this parasite?

A

Assassin bug

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Q

Identify the parasite.

A

Musca domestica

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Q

Identify the parasite. What is this parasite responsible for transmitting?

A

Rhipicephalus sanguineus -

Transmits: Babesia, Ehrlichia, RMSF, Hapatozoon

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Q

Wow, what a prominent, rigid, conspicuous, and forward projecting proboscis! This must be from:

A

Stomoxys calcitrans

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Q

Identify the parasite. Are these eggs laid embryonated or unembryonated?

A

Strongyloides westeri egg. Embryonated

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Q

What is the common name for this parasite?

A

Sarcoptic mange mite

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Q

Identify the parasite.

A

Trichodectes canis

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Q

What is the genus & who are the DH hosts for the parasite pictured?

A

Cuterebra spp.

DH: Rabbits and rodents are primarily hosts

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Q

Identify the parasite. What life cycle stage is present? what hosts & where on the host are you most likely to find it?

A

Linognathus vituli - adult

dogs, cattle, sheep & goat can be found all over the body.

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Q

Identify the parasitic egg

A

Draschia megastoma egg

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Q

Identify the parasite. What life cycle stage is present?

A

Oxyuris equi eggs

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Q

Identify this parasitic egg

A

Habronema spp.

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Q

Identify the parasite.

A

Anoplocephala perfoliata

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Q

What is the common name for the parasite pictured?

A

Coccidia

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Identify the parasite. What is/are the site(s) of infection?

*Demodex canis* - hair follicles and sebaceous glands

Identify the parasite. What life cycle stage is present? What is the common name & where on the host are you likely to find this parasite?

*Haematopinus eurysternus* adult Short nosed cattle louse head, neck, & back - but can spread throughout the body

Identify the parasite responsible for transmitting *Onchocerca* in horses & cattle

*Culicoides* spp adult

Identify the parasite. What life cycle stage is present?

*Musca autumnalis* adult

Identify this parasite with vestigial mouthparts

*Cuterebra* spp.

Identify the parasite. What is the life cycle stage?

*Ctenocephalides* larva

Identify the parasite. What is the life cycle stage?

*Ctenocephalides* adult

What is the scientific name for the red worms pictured?

*Strongylus vulgaris*

Identify the parasitic eggs.

*Taenia saginata*

(Pictured) Larval cyanthostominosis and catharral colitis is caused by which parasite?

Cyanthostomins

Shit man, what's on my steak?!

*Taenia saginata*

This "moroccan leather" effect is caused by *which parasite*?

*Ostertagia ostertagi*

Identify this parasite.

*Cooperia* spp.

Migration of the larvae of this parasite leads to infarction in cats and feline ischemic encephalopathy. What is it?

*Cuterebra* spp.

Identify the parasitic eggs

*Hypoderma lineatum*

Identify the parasite. What life cycle stage is present?

Rhipicephalus sanguineus or R. boophilus - adult

Identify the parasite. What life cycle stages are parasitic?

Otobius spp. - only larvae & nymphs are parasitic

Identify the parasite and life cycle stage. What does this life cycle stage feed on?

Ctenocephalides larva. Feeds on organic debris, including the blood in the feces of the adult fleas

Identify the parasite. What life cycle stage is present?

*Cuterebra* spp. L₃

Identify the parasite. What life cycle stage is present?

*Trypanosoma cruzi* **trypomastigotes** in blood smear

Identify this parasitic egg

Trichostrongyloidea spp. ## Footnote *ie. Ostertagia ostertagi*

This thickened skin is likely due to a ____________ infections

*Sarcoptes scabiei*

What is the life cycle for the tick pictured?

*Ixodes* - 3 host life cycle

Identify the parasite. What life cycle stage is present? What is/are the site(s) of infection for this parasite?

*Giardia intestinalis* trophozoite. Site of infection: small intestine

Identify the parasite. What life cycle stage is present?

*Sarcocystis* spp. - individual sporocysts

What type of egg is this?

Strongyle egg

Identify the parasites.

Anoplocephala perfoliata

This horse has Equine Protozoal Myeloencephalitis. Which parasite was it caused by?

*Sarcocycstis neurona*

Woah, what are those? What parasite is its vector?

That's 2 *Babesia* spp. **trophozoites** R. sanguineus = vector

Identify the parasite. What is/are the host(s)?

*Trichodectes canis.* Dogs.

What is the common name of this parasite?

bed bug

Identify the parasite. What is its site of infection?

*Ostertagia ostertagi* - abomasum

Identify the parasite. What life cycle stage is present?

*Theileria (Cytauxzoon*) spp **merozoites** in red blood cells

What is the scientific name of the face fly?

*Musca autumnalis*

Identify the parasite. What is/are the host(s) for this parasite?

*Ctenocephalides* adult. Dogs and cats.

Identify the parasite.

*Fasciola hepatica*

Which *Ctenocephalides* life cycle stages are present in this image of the rug that your feet are on RIGHT NOW

Eggs and larvae are present

Identify the parasite. What life cycle stage is present?

*Linognathus setosus* adult

Identify the parasite. What life cycle stage is present?

*Oxyuris equi*

Identify the parasite. What is the common name?

Culicidae. Mosquito

Identify the parasite. Which diseases are transmitted by this parasite?

*Dermacentor* spp. Rocky Mountain Spotted Fever, Tularemia, Babesia

Which *Babesia* spp life cycle stage is present in this image?

*Babesia* spp **trophozoites** in blood smear

Identify the parasite. What life cycle stage is present?

*Parascaris equorum* egg

Identify the parasite.

Otobius spp.

Identify this nematode. What is the life cycle stage?

Could be either *Draschia* spp. or *Habronema* spp. **egg**

Identify the parasite

Dermacentor spp.

Identify the parasitic egg.

*Anoplocephala* spp.

Identify the parasite. What is the common name?

*Oxyuris equi* - large pinworm

What is the common name for the tick pictured?

Lone star tick

What is the common name for the parasite pictured?

Demodectic mange mite

Identify this parasite. What life cycle stage is present?

*Cystoisospora canis* Sporulated oocyst is present. This is the **infective stage.**

"Pipestem liver" is caused by which parasite?

*Fasciola hepatica*

Identify the parasite. What life cycle stage is present?

*Oesophagostomum* spp adult