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Parasitology > Intro To Parasitology > Flashcards

Intro To Parasitology Flashcards

0
Q

What is symbiosis

A

When two living creatures live together

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1
Q

What is the majority of interactions of living organisms based upon

A

Food

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2
Q

What is each member of a symbiotic relationship considered

A

Symbiont

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3
Q

Describe a predator prey symbiotic relationship

A

Short lived. Beneficial for one and detrimental for other.

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4
Q

What does phoresis mean

A

To carry.

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5
Q

What is a phoresic symbiotic relationship

A

One animal caries another

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6
Q

Describe a mutualist relationship

A

Both organisms benefit

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7
Q

Describe a commensalist relationship

A

Benefits one organism and has no harm to the other

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8
Q

Describe a parasitic relationship

A

The parasite lives on or with the host. Metabolic dependence of one on the other.

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9
Q

What is the differences between predator prey relationship and parasitism

A

Longer relationship. Don’t usually try to kill host.

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10
Q

What is parasitiasis

A

Presence of parasite with no clinical signs.

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11
Q

What is parasitosis

A

Presences of parasites and has a disease of parasites (clinical signs)

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12
Q

What is parasitism

A

A life relationship in which the parasite uses the host as a habitat and a food source.

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13
Q

What are the advantages to parasitism.

A

Infinite amount of food b

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14
Q

What is advantageous to a parasite with the movement of its host

A

Dispersion of the parasite

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15
Q

What does the host protect the parasite against

A

The environment, heat

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16
Q

How does a parasite evade the host fighting it

A

Attach to host cells, mutate

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17
Q

What are some ways parasites evade the host

A

Anticoagulants, opiate saliva secretion, covers self with human proteins. Forms cysts

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18
Q

What does the trypanosoma cause

A

Less milk, lose weight.

19
Q

What percentage of herds and individuals are infected with trypanosoma

A

100% of herds and 90% of individuals

20
Q

What is trypanosoma considered

A

A chronic, subacute problem.

21
Q

What are some general things that parasites cause

A

Anemia, diarrhea, poor growth, malabsorption, respiratory problems, cardiovascular problems, ocular issues
Dermatological issues

22
Q

What can you get from uncooked beef

A

Tapeworm

23
Q

What can you get from uncooked pork

A

Trichanosis

24
Q

What parasites can you get from contact with cats

A

Toxoplasmosis

25
Q

What parasite can you get from dogs

A

Toxocaris

26
Q

What are parasites that live within the body considered

A

Endoparasites

27
Q

What do endoparasites do

A

Cause an infection

28
Q

What are parasites that live on the body called

A

Ectoparasites

29
Q

What do ectoparasites

A

Infestation

30
Q

What is an example of ectoparasites

A

Fleas

31
Q

Give characteristics of an obligate parasite

A

Must use the host to survive and complete the development cycle. Can have a period outside host where transmission occurs

32
Q

What is an example of a facultative parasites

A

S. Stercoralis

33
Q

What are the characteristics of a incidental parasites

A

Short survival

34
Q

What is an example of a hyper parasite

A

A tape worm in a flea

35
Q

What does the parasitic load factor into

A

The development of the disease

36
Q

What is the pre patent period

A

Time frame from infection with a parasite to that when the parasite can be recovered and diagnosed

37
Q

What is a host

A

Animal providing habitat for a parasite

38
Q

What are some general characteristics of parasites

A

Have at least one definitive host and may have one or more intermediate hosts.

39
Q

What happens in a definitive host

A

Parasite matures to sexual and adult stage

40
Q

What is an intermediate host

A

Larval, immature and juvenile stage of parasite.

41
Q

What does toxoplasma gondii do to mice

A

Convinces mice to approach cats. Gets rid of olfactory receptors in mice brain so mice doesn’t sense danger

42
Q

What is a paratenic host

A

Transport host. Form of intermediate host. No development of the parasite. Remains encysted.

43
Q

What is a reservoir host

A

Source of infection for different species

44
Q

What does a vermifuge do

A

Paralyzed worm to expel

45
Q

What does a vermicide do

A

Kills worm

Parasitology (9 decks)

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