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Parasitology > Lab test 2 > Flashcards

Lab test 2 Flashcards

1
Q

Where does the merozoite develop?

A

Inside schizont

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2
Q

How many cells can be infected by a merozoite of Eimera?

A

1

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3
Q

what does the sporulated oocyst of coccidiosis contain?

A

4 sporocysts and 2 sporozoites

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4
Q

how many gamonts can develop from one schizont?

A

Many

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5
Q

How many epithelial cells can become infected by 1 eimeria oocyst at the beginning of infection?

A

8 cells (4 sporocysts and 2 sporozoites in each)

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6
Q

How many cells can be infected by the content of one eimera oocyst?

A

8

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7
Q

how many epithelial cells can be infected by the content of one schizont of eimera?

A

many

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8
Q

how many epithelial cells can be infected by the content of one eimera sporocyst?

A

2

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9
Q

how can we recognize chicken coccidia by species in the most simple way?

A

based on necroscopy findings

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10
Q

in order to identify the species of a sporulated oocyte, what of the following is needed?

A

Size of oocyte

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11
Q

What does the unsporulated oocyst contain?

A

zygote

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12
Q

how many macrogametes can develop from one macrogamont?

A

1

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13
Q

the correct order in the life cycle of eimera

A

sporongy (in environment), schizogeny (in intestinal cells), gametogony (in intestinal cells), sporogony (of new oocysts in the environment)

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14
Q

which species of eimera are haemorrhagic?

A

E. tenella
E. necatrix
E. brunetti

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15
Q

which species of eimera are not haemorrhagic?

A

E. maxima
E. mitis
E. praecox

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16
Q

which method do you not use to identify the species in the chicken coccidosis?

A

McMaster method (it counts the number of oocysts but does not tell you which species it is)

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17
Q

time lapse from injection of host to apperence of parasite sexual product in faeces is called?

A

Praepatent period

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18
Q

which method of staining can be applied to detect histomonas in tissues?

A

PAS

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19
Q

What does the sporulated oocysts contain?

A

Sporocysts

20
Q

Where does the sporozoite develop?

A

in the sporocysts

21
Q

during gametogony when the merozoites develop into the female gametocytes they are called?

A

Macrogametocytes

22
Q

which animal species can be infected by eimera maxima?

A

Chicken

23
Q

what do you find on mucosa during an infection with E. maxima?

A

Petechiae (also on serosa)

24
Q

Which statement is true?

A

E. Maxima has a 30x20 microm. oocyst that is characteristic

25
Q

size of oocysts can be used as identification for which of these species?

A

E. maxima or “OTHER” (OOCYSTS OF OTHER SPECIES ARE NOT characteristic to identify species)

26
Q

which has slightly orange/salmon pink exudate in lumen?

A

E. maxima

27
Q

where does the sporogony of eimera maxima take place=

A

in the outer environment

28
Q

which animal species can be infected by eimera acervulina

A

Chickens

29
Q

where does the sporogony of eimera acervulina take place?

A

in the outer environment

30
Q

where does the schizogony of eimera acervulina take place?

A

in epithelial of duodenum and jejunum

31
Q

which one has discrete white foci or transverse bands which are ladder-like?

A

E. acervulina

32
Q

where does the gametogony of E. acervulina take place?

A

duodenum and jejunum

33
Q

where do the eimera acervulina gamonts develop?

A

Duodenum and jejunum

34
Q

Where do schizonts of eimera necatrix develop

A

in jejunum and ileum

35
Q

in coccidiosis caused by E. necatrix, what can be found on the intestines (lumen)?

A

unclotted blood

36
Q

Animals infected by E. brunetti?

A

chickens

37
Q

where does the sporogony of eimera brunetti take place?

A

in outer environment

38
Q

what is not true?

A

E. brunetti is found in the duodenum

39
Q

where do the eimera brunetti schizonts develop

A

lower part of intestine

40
Q

which animal species can be infected by eimera tenella

A

Chickens

41
Q

where do the eimera tenalla schizonts develop?

A

Caecum

42
Q

where do schizonts of E. mitis develop

A

in the jejunum

43
Q

which symptom does not appear in case of renal coccidiosis?

A

bloody faeces

44
Q

in the goose what species of eimeria affects the kidney?

A

E. truncata

45
Q

where is the E. truncata primarily located

A

renal tubules

46
Q

which of the following is an symptom of E. truncata?

A

torticollis

Parasitology (9 decks)

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