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VET 278- Parasites > Final Exam Revision > Flashcards

Final Exam Revision Flashcards

1
Q

Where is sarcocystis found within sheep and cattle?

A

Found within the muscle

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2
Q

How many hosts are found within the lifecycle of Sarcocystis?

A

2 hosts: - direct is carnivore - indirect is sheep

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3
Q

How does Sarcocystis affect the dog?

A

it doesn’t it will only affect sheep and cattle (the Australian species are relatively mild compared to other species around the world)

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4
Q

How would Sarcocystis be diagnosed?

A

Zinc flotation of faecaliser of the faeces

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5
Q

Name the following parasite in the diagram below:

A
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6
Q

What is the main vector for T.evansi?

A

Tabaniid fly

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7
Q

What stage of the trypanosoma is found within the blood?

A

Trypanosoma found in blood is trypomastigote

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8
Q

What life cycle stage of trypanosoma is in the insect?

A

Epimastigote

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9
Q

Name the parasite that is in the picture below:

A
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10
Q

Briefly describe th lifecycle of cryptosporidium:

A

Sporulated oocysts are passed in the faeces. If ingested by sheep the oocysts rupture in the small intestine to liberate oocysts.

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11
Q

Is cryptosporidium zoonotic?

A

Some species of cryptosporidium are zoonotic.

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12
Q

Is cryptosporiddium usually pathogenic?

A

No. Stress will often exacerbate the symptoms that are observed within young animals though.

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13
Q

How is crytposporidium normally identified?

A

Normally diagnosed through a faecal egg count of the faeces.

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14
Q

What are the common clinical symptoms that are associated with Eimeria?

A

Mainly young animals. Blood strained diarrhoe is a commonly observed clinical symptom

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15
Q

Name the following parasite in the digram below:

A

Eimeria

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16
Q

How is giardia typically diagnosed?

A

Microscopy showing characteristic cysts/trophozoites within the faeces.

17
Q

Name the parasite in the image below:

A

Giardia

18
Q

How is toxoplamsa gondii transmitted?

A

In utero or via milk. Oocysts from ingestion or via vertical transmission

19
Q

How is toxoplasma gondii diagnosed?

A

Presence of characterisitc oocysts in cat faeces

20
Q

Name the parasite in the image below:

A

toxoplasma gondii

21
Q

What are the pathological effects of the Balantidium Coli parasite?

A

More important pathogen of primates. Causes bloody diarrhoea and mucosal ulceration

22
Q

How is the balantidium coli parasite diagnosed?

A

Diagnosis is by the characteristic presence of cysts or trophozoites within the faeces

23
Q

What are the pathological effects of Entamoeba?

A

Infections are not considered to be of clinical significance within pigs.

24
Q

How is babesia canis transmitted?

A

Transmitted throught the vector of the tick

25
Q

Name the parasite in the digram below:

A

Babesia canis

26
Q

How is babesia canis diagnosed:

A

Diagnosed through the presence of piriform parasites within the RBC smear

27
Q

How would humans aquire an Echinococcus granulosus infection?

A

There is an intermediate host in herbivorous animals and a definitive host in a dog. Humans can only be infected by consuming dog faeces, as humans are also an intermediate host.

28
Q

Briefly describe the lifecycle that is involved in taenia hydatigenia:

A

Involves an indirect lifecycle. The definitive host is the dog, whereas the intermediate host is the sheep.

29
Q

Name the parasite that is responsible for this condition:

A

Taenia Hydatigena

30
Q

Name the parasite in the diagram below

A

Monezia

31
Q

How do humans become infected with Diphylidium Caninum?

A

Through the accidental ingestion of a flea or louse.

32
Q

Name the parasite in the diagram below:

A

Diphylidium Caninum

33
Q

Briefly explain the indirect lifecycle of Diphyliidium Caninum:

A
  • DH: Dogs, other carnivores (small intestine)
  • IH: flea or louse
  • Accidental: Humans
  • Egg packets eaten by larvae of Ctenocephalides, develop into larval metacestode, cysticercoid
  • Infected adult fleas/lice eaten while DH grooming
34
Q

Name the parasite in the digram below:

A

Fasciola Hepatica

VET 278- Parasites (7 decks)

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