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AA Vet Roundworms > Trichostrongylidae > Flashcards

Trichostrongylidae Flashcards

1
Q

They are known as the twisted stomach worm, wireworm, and barber’s pole worm

A

Haemonchus contortus

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2
Q

Identify the predilection site twisted stomach worm

A

abomasum

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3
Q

known as the bankrupt worms or black scour worms

A

Trichostrongylus spp

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4
Q

Trichostrongylus spp present in SI of sheep and goats

A

T. colubriformis

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5
Q

Trichostrongylus spp present in SI, abomasum, or stomach of sheep, goats, cattle, horses, and donkey

A

Trichostrongylus axei

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6
Q

known as the brown stomach worm

A

Ostertagia /Teladorsagia

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7
Q

brown stomach worm of cattle

A

Ostertagia ostertagi

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8
Q

brown stomach worm of sheep

A

Teladorsagia circumcincta

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9
Q

Described as the watch spring-like posture due to the prominent longitudinal ridges which are transversely striated

A

Cooperia and Paracooperia

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10
Q

Paracooperia spp found in SI of buffaloes

A

Paracooperia nodulosa

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11
Q

Cooperia and Paracooperia host and predilection site

A

ruminants; SI

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12
Q

these are intertwined slender worms appear like a “cotton wool”

A

nematodirus

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13
Q

They have the same pathogenicity as Haemonchus but milder

A

Mecistocirrus

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14
Q

known as the red stomach worm of pigs

A

Hyostrongylus rubidus

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15
Q

Hosts and predilection sites of Ornithostrongylus

A

crop, proventriculus, and small intestine of pigeons

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16
Q

Trichostrongylidae spp found in the stomach of cat, fox, and pigs

A

Ollulanus tricuspis

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17
Q

trichostrongyles in small intestine of rodents

A

Nippostrongylus muris

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18
Q

trichostrongyles in stomach of rabbits

A

Obeliscoides cuniculi

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19
Q

trichostrongyles in proventriculus of ostrich

A

Libyostrongylus douglassii

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20
Q

trichostrongyles with cross shaped telamon

A

Ornithostrongylus

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21
Q

Give the general morphology of Trichostrongylus spp

A
  1. buccal capsule either absent or small
  2. devoid of leaf crowns
  3. no teeth
  4. have well developed bursa
  5. eggs are strongyle like and thin walled
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22
Q

Trichostrongylus present in abomasum of ruminants, stomach of horses, pigs, and man

A

Trichostrongylus axei

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23
Q

known as the stomach hair worm

A

Trichostrongylus axei

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24
Q

these genera cause ringworm lesions and black scouring is evident

A

Trichostrongylus

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25
Q

most common brown stomach worm

A

Ostertagia ostertagi

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26
Q

brown stomach worm of goats

A

Ostertagia trifurcata

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27
Q

Identify the prominent features of Cooperia

A

watch spring like and very large bursa in all species

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28
Q

Cooperia spp present in cattle

A

C. oncophora, C. punctata

29
Q

Cooperia spp present in sheep and goats

A

C. curticei

30
Q

known as the thread-necked strongyles with cotton wool appearance

A

Nematodirus

31
Q

predilection site of Nematodirus

32
Q

Its pathogenesis cause severe damage to the intestinal villi and erosion of the mucosa (villous atrophy)

A

Nematodirus

33
Q

wire worm of sheep and goats

A

Haemonchus contortus

34
Q

twisted stomach worms of cattle

A

Haemonchus placei

35
Q

Trichostrongylidae genera more common in the Ph than Haemonchus

A

Mecistoccirrus

36
Q

These spp are distinguished from haemonchus microscopically by having long narrow spicules

A

Mecistoccirrus digitatus

37
Q

capable of penetrating the gastric glands

A

Ostertagia spp

38
Q

causes ring worm lesions in the intestinal mucosa

A

Trichostrongylus spp

39
Q

known as the small intestinal hairworm

A

Trichostrongylus spp

40
Q

known as the red stomach worm

A

Hyostrongylus rubidus

41
Q

FH and PS of Hyostrongylus rubidus

A

pigs; stomach

42
Q

known as the thread-necked worm

A

Nematodirus spp

43
Q

they gave prominent excretory pore located on the ventral side at some distance from the anterior end

A

bankrupt worms

44
Q

their white ovary is spirally wound around the blood filled ovary

A

Haemonchus

45
Q

females are like those of haemonchus but devoid of vulva flap

A

Mecistocirrus

46
Q

with a swollen head due to small cephalic vesicle

47
Q

Cooperia spp with watch spring like posture

A

Cooperia curticei

48
Q

known as the medium brown worm

A

ostertagia and teladorsagia

49
Q

resembles the human hookworms Ancylostoma present in rodents

A

Nippostrongylus brasiliensis

50
Q

wireworm present crop in ostrich

A

Libyostrongylus douglassii

51
Q

present in the small intestine of columbiform birds

A

Ornithostrongylus quadriradiatus

52
Q

present in the ceca and SI of anseriform and galliform birds

A

Trichostrongylus tenuis

53
Q

Briefly describe the morphological characteristics of Trichostrongyloid worms

A
  1. with no or small buccal cavity
  2. appearance of spicules of the male is an important diagnostic morphological character
  3. have synlophe
54
Q

these worms have swollen head due to small cephalic vesicle and their eggs have parallel sides

55
Q

these worms have large eggs that are twice the size of a typical trichostrongyloid egg

A

Nematodirus / thread-necked worms

56
Q

Nematodirus spp affecting SI of cattle

A

Nematodirus helvetianus

57
Q

Nematodirus spp affecting SI of sheep and goats

A

Nematodirus filicollis, N. spathiger, N. battus

58
Q

Affects abomasum or stomach of zebu, buffalo, sheep, goats and rarely pigs

A

Mecistocirrus digitatus

59
Q

Present in the small and large intestines of buffalo and zebra

A

Paracooperia nodulosa

60
Q

haemonchus spp affecting abomasum of camel

A

Haemonchus longistipes

61
Q

most bloodsucking and pathogenic of hookworms

A

Haemonchus & Mecistocirrus

62
Q

Major clinical signs are: profuse, watery diarrhea, putrid smell, dehydration and loss of appetite, weight, and production

A

Ostertagiosis

63
Q

Cause hemorrhagic anemia, dark colored feces, edema, weakness and falling well in sheep and sudden death in acute diseases

A

Haemonchosis

64
Q

In chronic cases, it seldom show diarrhea but may be constipated

A

Haemonchosis

65
Q

These diseases cause diarrhea with severe, black, hemorrhagic scour

A

Trichostrongylosis, Cooperiosis, Nematodirosis

66
Q

cause diarrhea in young animals and nodules in walls of small and large intestines

A

Paracooperiosis

67
Q

long red worm attached to the gastric mucosa of rabbits

A

Graphidium strigosum

68
Q

long white worms living in the small intestines of rabbits and hares

A

Trichostrongylus retortaeformis

AA Vet Roundworms (14 decks)

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