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VPara Protozoology > Apicomplexa (Eimeria, Isospora) > Flashcards

Apicomplexa (Eimeria, Isospora) Flashcards

1
Q

2 classes of Subphylum apicomplexa

A

conoidasida, aconoidasida

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2
Q

2 sporozoites having conoids

A

Gregarines, coccidians

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3
Q

2 sporozoites lacking conoids

A

Plasmodia, Piroplasms

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4
Q

truncated cone of spirally arranged fibrillar structures with role in invasion of hosts

A

conoids

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5
Q

What are the three parasites under Class Aconoidasida

A

Babesia, Theileria, Plasmodium

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6
Q

Families of Order Coccidia

A

Eimeriidae, Cryptosporiidae, Sarcocystiidae, Klossiellidae, Heatozoidae, Lankesterellidae

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7
Q

Families of Order Haemospororida

A

Family Plasmodiidae

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8
Q

Families of Order Piroplasmorida

A

Babesiidae, Theileriidae

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9
Q

What is the functional unit of coccidian ontogeny

A

zoite

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10
Q

sausage shaped cells which is the infective stage

A

sporozoites

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11
Q

undergo merogonic development inside the enterocytes

A

trophozoites

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12
Q

3 phases of Eimeria life cycle

A

Merogony, Gametogony, Sporogony

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13
Q

released outside the enterocytes to invade other enterocytes or develop into gametes

A

merozoites

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14
Q

once sporozoites invade the epithelial cell of intestines, they become rounded and become

A

trophozoites

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15
Q

it represents the beginning and end point of every coccidian life cycle

A

zoite

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16
Q

trophozoite will then divide into a number of elongated nucleated merozoites, collectively known as?

A

meront

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17
Q

sporulation takes how many days and in what temperate conditions

A

1 to days, 21 to 32 degree celcius

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18
Q

During sporogony, after the division of nucleus the protoplasm forms these bodies that surrounds each nucleus budding off from the central core

A

conical bodies

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19
Q

nucleus and conical body together forms

A

sporoblasts

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20
Q

Coccidian oocysts are resistant to some disinfectants but killed by

A

freezing, high environmental temperatures

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21
Q

affects young animals associated with gastrointestinal disturbances which may vary from catarrhal to hemorrhagic diarrhea to no manifestation at all

A

coccidiosis

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22
Q

It affects terminal ileum, cecum, and colon of young cattle with permanent stuntedness in animals that survived severe illness

A

Bovine coccidiosis

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23
Q

etiologic agent of Equine coccidiosis which affects small intestine of horse and donke

A

Eimeria leuckarti

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24
Q

It occurs to mainly newborn piglets aged 3-21 days with persistent yellow white diarrhea but rarely bloody. Affected parts are jejunum and ileum

A

Pig coccidiosis (Eimeria spp., Isospora suis)

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25
Q

serve as intermediate hosts to important coccidia

A

Carnivores (non-pathogenic to dogs and cats)

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26
Q

Coccidia found in the liver and bile duct of rabbit

A

Eimeria stiedai

27
Q

Coccidiosis etiologic agents affecting the duodenum of chickens

A

E. acervulina, E. praecox, E. hagani, E. mivati

28
Q

Etiologic agent of coccidiosis of chickens affecting the mid-intestine

A

E. necatrix

29
Q

Etiologic agent of coccidiosis of chickens affecting the jejunum and ileum

A

E. maxima

30
Q

Eimeria brunette causes coccidiosis in chickens particularly affecting?

A

lower SI, ceca, cloaca

31
Q

E. tenella affects?

A

Ceca

32
Q

the most pathogenic coccidiosis in chickens found in ceca

A

Eimeria tenella

33
Q

disease associated with cheesy necrotic core

A

cecal coccidiosis

34
Q

highly pathogenic, produce white spots in the intestinal wall and marked hemorrhage and ballooned mid intestine

A

Eimeria necatrix

35
Q

produce thickened intestine with pink mucoid exudate and coagulation necrosis with mucosal sloughing

A

Eimeria maxima

36
Q

affects upper small intestine producing typical striation and mucosal thickening

A

Eimeria acervulina

37
Q

produces characteristics of ladder lesions

A

Eimeria acervulina

38
Q

coccidia most pathogenic to Bobwhite quail

A

Eimeria lettyae

39
Q

coccidia most pathogenic to chickens

A

Eimeria necatrix, E. tenella

40
Q

coccidia pathogenuc in pheasants

A

E. phasiani, E. colchici

41
Q

generic name of Isospora which utilize paratenic hosts

A

Cystoisospora

42
Q

Isospora may or may not have ____ in their sporocysts

A

Stieda body

43
Q

they can complete their entire life cycle in a single host

A

Isospora

44
Q

Extra-intestinal stages of Isospora affects?

A

spleen, liver, lymph nodes

45
Q

Isospora species affecting Camels

A

Cystipora orlovi

46
Q

Isospora species affecting dogs

A

I. canis
I. ohioensis
I. burrowsi
I. neorivolta

47
Q

isospora species affecting cats

A

I. felis
I. rivolta

48
Q

prevalent in neonatal pigs causing watery or greasy diarrhea (yellowish to white foul smelling feces)

A

Isospora infection

49
Q

lesions present of Isospora infection

A

villus atrophy, blunting of villi, focal ulceration, fibrinonecrotic enteritis

50
Q

sporulated oocysts may survive for long periods, depending on environmental factors

A

Coccidia

51
Q

affects young animals while the older ones serves only as carriers

A

coccidiosis in mammals

52
Q

associated with GIT disturbances which may vary from catarrhal to hemorrhagic diarrhea to no manifestation at all

A

coccidiosis in mammals

53
Q

Affects terminal ileum, cecum, and colon of young cattle

A

bovine coccidiosis

54
Q

affects small intestines of horse and donkey

A

equine coccidiosis

55
Q

Pig coccidiosis affects what part of organ in swine

A

jejunum, ileum

56
Q

etiologic agents of pig coccidiosis

A

Eimeria spp. and Isospora suis

57
Q

Lesion of pig coccidiosis

A

persistent yellow white diarrhea for 4-6 days, rarely bloody

58
Q

Exposure to minor amount of sporulated
oocysts produce strong but not absolute
immunity

A

cecal coccidiosis

59
Q

Oocysts occur in cecum but
no associated gross lesions

A

Eimeria necatrix

60
Q

there is marked hemorrhage and ballooned mid-intestine

A

Eimeria necatrix

61
Q

Affected intestine thickened with pink mucoid exudate, coagulation necrosis with mucosal sloughing

A

Eimeria maxima

62
Q

have the largest oocysts of Isospora

A

dogs

63
Q

Signs of Isospora infection in Pigs

A

watery or greasy diarrhea (yellow to white foul smelling feces

VPara Protozoology (12 decks)

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