Protozoa Flashcards

1
Q

What is coccidiosis caused by?

A

Cystoisospora

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2
Q

What form of Leishmania affects several internal organs, including the spleen, liver, and bone marrow?

A

Visceral form

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3
Q

How does Giardia transmit to another host?

A

Passed through the feces
Gets into the water or picked up from the contaminated ground
Ingested by either new host or same host

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4
Q

What type of protozoan is Giardia?

A

Flagellated

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5
Q

What animal is the definitive host of Toxoplasma?

A

Cats

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6
Q

What is the prepatent period of coccidia?

A

7-14 days

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7
Q

The Mucocutaneous form of Leishmania is caused by what species?

A

L. braziliensis

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8
Q

What is the protozoa that has a “smiley face?”

A

Giardia

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9
Q

What for of Leishmania causes skin sores?

A

Mucocutaneous

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10
Q

Tritichomonas foestus resides in what part of the body within the bull and cow?

A

Prepuce of the bull

Vagina, cervix, and uterus of cows

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11
Q

What type of egg is oval and slightly resembles a boat?

A

Giardia

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12
Q

Trichomonas gallinae causes what in birds?

A

Necrotic ulcerations in the esophagus, crop and proventriculus

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13
Q

Reproduction of protozoa can be?

A

Asexual

Sexual

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14
Q

What are the organelles for locomotion in protozoa?

A

Flagella

Cilia

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15
Q

What are the three forms of Leishmania?

A

Mucocutaneous
Cutaneous
Visceral

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16
Q

How is Babesia transmitted?

A

Ticks
Blood transfer from dog bites
Blood transfusions
Transplacental transmission

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17
Q

What is a Hemoprotozoa?

A

Blood protozoa

18
Q

Leishmania is what type of protozoa?

A

Hemoprotozoa

19
Q

Protozoa that are found in fecal material are known as what kind of protozoa?

A

Intestinal protozoa

20
Q

What is the prepatent period for Isospora suis?

A

4-8 days

21
Q

The sand fly carries what stage of Leishmania?

A

Promastigotes

22
Q

What are Apicomplexans, there are about 4,600 species

A

Sporozoans

23
Q

How is Leishmania transmitted?

A

Phlebotomus

Lutzomyia ( sandflies)

24
Q

How is Babesia diagnosed?

A

By observing the basophilic, pear-shaped trophozoites in the RBC’s on a stained blood smear.

25
Q

Leishmania lifecycle

A

Parasite is transmitted via a bite from insect vector
Promastigotes are phagocyted by the host’s macrophages
Promastigotes multiply by binary fission and develop into amastigote stage
Released when cell ruptures
Amastigotes are phagocyted by other macrophages
In tissues and picked up flies
Develop into promastigotes in sandflies

26
Q

The visceral form of Leishmania is caused by what species?

A

L. donovani

L. infantum

27
Q

What clinical signs can Tritrichomonas foestus cause?

A

Infertility
Spontaneous abortion
Pyometra

28
Q

What is the name of the coccidian that parasitizes the small intestine of swine, especially young piglets?

A

Isospora suis

29
Q

What is the parasite of the reproductive tract of cattle?

A

Tritrichomonas foetus

30
Q

What stage do the promastigote develop into when inside the macrophage?

A

Amastigote

31
Q

This intracellular parasite is found within the erythrocytes of dogs

A

Babesia

32
Q

What obligate intracellular gram-negative bacteria is transmitted through a tick?

A

Rickettsia

33
Q

What protozoa should women be concerned about contracting with they are pregnant?

A

Toxoplasma

34
Q

What is a trophozoite?

A

Motile feeding stage of the protozoal parasite

35
Q

What are the symptoms of Cryptosporidium?

A
Watery diarrhea
Stomach cramps or pain
Dehydration
Nausea
Vomiting
Fever
Weightloss
36
Q

What protozoa is found in crop washes and crop swabs from pigeons, doves, and poultry?

A

Trichomonas gallinae

37
Q

What are the two morphological forms of giardia?

A

Motile feeding stage

Resistant stage

38
Q

Toxoplasma is caused by what species of protozoa?

A

Coccidia

39
Q

What is the resistant morphological form of Giardia?

A

Cyst

40
Q

What kind of hosts do ticks serve as and what do the RBCś contain?

A

Intermediate

Trophozoites