RoundWorms Flashcards
(141 cards)
1
Q
morphology of adult round worms
A
medium sized up to 40cm
rigid
spindle shaped
white opaque
no buccal capsule
3 lips
no bursate in males
2
Q
morphology of roundworm eggs
A
ovoid, thick shelled(3) layers
3
Q
location of roundworms
A
small intestine
4
Q
ascaroid
A
small intestine –> liver –> lungs –> trachea –> pharynx —> small intestine
5
Q
toxocaroid
A
small intestine –> liver –> lungs –>blood
6
Q
ascaridioid
A
moults in mucosa of small intestine
no migration
7
Q
infection routes of roundworms
A
po
prental and lactogenic
8
Q
cause of equine parascariosis
A
parascaris equorum
9
Q
morphology of equine parascariosis
A
20-40cm
rigid
10
Q
life cycle of equine parascariosis
A
direct
PE2 ascaroid
11
Q
prepatent period of equine parascariosis
A
10-12weeks
12
Q
clinical signs of equine parascariosis
A
cough
nasal discharge
anorexia
dullness
colic
weight loss
nervous signs
diarrhoea
worms in faeces
13
Q
necrscopy of equine parascariosis
A
catarrhal enteritis
invagination
occlusion of small intestine
rupture of intestinal wall
peritonitis
haemhorrhage
imflammatory foci
nodules contating dead larve in liver
14
Q
cause of bovine toxocariosis
A
toxocara vitulorum
15
Q
morphology of bovine toxocariosis
A
15-30cm long
white/transparent
16
Q
host of bovine toxocariosis
A
cattle
buffalo
sheeo
goat
17
Q
life cycle of bovine toxocariosis
A
direct
PE2 toxocaroid
18
Q
clinical signs of bovine toxocariosis
A
changing appetite
decreased growth rate
abdominal spasm
diarrhoea
strong butyric or acetone like odour
worms in faeces
19
Q
when is there worms in faeces for flotation in bovine toxocariosis
A
<4month old calf
20
Q
necroscopy of bovine toxocariosis
A
catarrhal enteritis
acetone smelling meat
21
Q
cause of porcine ascariosis
A
ascaris suum
22
Q
morphology of porcine ascariosis
A
15-40cm
long, rigid
white
23
Q
life cycle of porcine ascariosis
A
direct
PE2 ascaroid type
24
Q
prepatent period of porcine ascariosis
A
8-9weeks
25
host of porcine ascariosis
pig, wild boar
26
clinical signs of porcine ascariosis
cough
dyspnoea
anaemia
anorexia
worms in faeces
27
false +ve faecal exam in porcine ascariosis
due to coprophagy
28
necroscopy of porcine ascariosis
catarrhal enteritis
roundworms in gut
cloudy whitish spots on liver
haemorrhage in lung
pneumonia
29
ascaridiosis cause
ascaridia galli
a. columbae
a. dissimilis
30
morphology of a. galli
5-12cm
31
morphology of a. columae and a. dissimilis
3-7cm
32
life cycle of ascaridiosis
direct
pe2 ascaridiosis
33
host of a. columbaee
pigeon
34
host of a. dissimilis
turkey
35
host of a. galli
fowl
turkey
duck
game birds
36
clinical signs of ascaridiosis
dull feather coat
curtailment of food
catarrhal enteritis
intestinal occlusion
decreased egg production
nervous signs
37
necroscopy of ascaridiosis
catarrhal haemorrhae croupous enteritis
38
toxocarosis
toxascariosis cause
toxocara canis
toxocara cati
toxocaris leonina
39
morphology of t. canis
10-18cm
40
morphology of t. cati
3-10cm
41
morphology of t. leonina
6-10cm
42
life cycle of t. canis
pe2 is ascaroid under 2 months
and toxocaroid over 4 months
43
life cycle of t. cati
ascaroid and toxocaroid
44
pe2 of t. leonina is
ascaridoid
45
host of toxocarosis
toxascariosis
dog, fox, cat
46
clinical signs of toxocarosis
toxascariosis
intermittent diarrhoea
changing appetite
pot belly
anaemia
weight loss
dull coat
cough
worms in vomit and faeces
nervous signs
47
necroscopy of toxocarosis
toxascariosis
small intestine filled with worms
enteritis
obturation
invagination
haemorrhage and inflammation in lungs
48
heterakiosis cause
heterakis gallinarum
h. dispar
h. isolonche
49
morphology of heterakiosis
0.7-1.5cm
long white
50
host of h. gallinarum
guinea fowl
turkey
pigeon
pheasant
51
host of h. dispar
duck, goose
52
host of h. isolonche
pheasant
wild bird
53
clinical signs of heterakiosis
diarrhoea
unthriftness
54
necropscopy of heterakiosis
haemorrhage
thickened caecal mucosa
verucous typhlitis with nodules
55
parascaris equorum egg
90-100um
spherical
yellowish brown
thick shelled with pitted surface
56
t. vitulorum egg
70-90um
brownish
thick shelled
outer pitted coat
57
ascaris suum eggs
50-70um
ovioid
brownish
thick shelled
irregularaly mammilated
58
ascaridosis egg
90um
ellipsoidal
colourless
smooth thick shell
59
t. canis egg
75-90um
subglobular
brownish with thick pitted shell
60
t. cati egg
65-75um
subspherical
brownish
61
t. leonina egg
70-85um
subspherical
light coloured
smooth egg shell
zygote doesnt fill it
62
heterakiosis egg
65-80um
ellipsoidal
thick, parallel sided smooth shell
contain zygote
63
infection of bovine toxocarosis
po with milk
no pathogeneisis with L3 infection
64
infection of porcine ascariosis
po with larvated eggs or paratenic host
65
infection of ascaridosis
by larvated eggs or paratenic hosts
66
infection of toxocarosis
po or prenatally or transmammary
67
prepatent period of toxocarosis po
30-39days
68
prepatent period of toxocarosis transmammary
27-35dayys
69
prepatent period of toxocarosis by eating paratenic host
19days
70
prepatent period of toxocarosis prenatal
16days
71
pinworm disease of horse and donkey name
oxyuriosis
72
cause of oxyuriosis
o. equi
73
morphology of oxyuriosis
females = 4-15cm
males = 1-2cm
gradual tapering
74
location of oxyuriosis
caecum and colon
75
life cycle of oxyuriosis
direct
76
when do oxyuriosis males die
after copulation
77
when do oxyuriosis females die
once they stick their eggs in clumps to skin of perianal region
78
infection of oxyuriosis
po
79
prepatent period of oxyuriosis
5 months
80
host of oxyuriosis
eq
81
clinical signs of oxyuriosis
perineal irritation, intense itching, anus rubbing
rat tailed condition
female worms voided and seen in faeces
82
eggs of oxyuriosis
rarely found in faeces as they are removed from the perineal skin
83
necroscopy of oxyuriosis
adults in the colon and rectum
84
eyeworms
thelaziosis
85
cause of thelaziosis
t. rhodesi
t. gulosa
t. skjabini
t. rhodes
t. lacrymalis
t. callipaeda
t/ californiensis
86
morphology of thelaziosis
0.5-2cm yellowish whitsh, thin, cuticle
transverselt striated on the anterior end
87
location of t. rhodesi
conjunctiva
88
location of thelaziosis
lacrymal duct
89
infection of thelaziosis
fly feeding on conjunctive
90
life cycle of thelaziosis
indirect
91
intermediate hosts of thelaziosis
flies
92
host of t. rhodesi, t. gulosa, t. skjabini
cattle
buffalo
zebu
sheep
goat
93
host of t. lacrymalis
eq
94
host of t. calipaeda, t. californiensis
dog
cat
rabbit
human
95
clinical signs of thelaziosis
conjunctivitis
lacrymation
photofobia
keratitis
opaque cornea
cornea ulceration
worms in conjunctive
96
which thelaziosis is zoonotic
the dog ones
97
cause of spirocercosis
spirocerca lupi
98
morphology of spirocercosis
3-8cm
stout
reddish
spirally coiled
99
location of spirocercosis
oesophagus or stomach
100
life cycle of spirocercosis
indirect
101
inter host of spirocercosis
dung beetle
102
prepatent period for spirocercosis
5-6months
103
host of spirocercosis
dog, cat
104
clinical signs of spirocercosis
salivation
regurgitation
weight loss
dysphagia
105
eggs of spirocercosis
in vomit anf faeces
106
necroscopy of spirocercosis
inflammation o faorta, stenosis, aneurysm
rupture of aorta, haemothorax
metastasis of thoracic vertebrae
107
cause of habronematidosis
draschia megastoma
habronema muscae
h. microstoma
108
morphology of habronematidosis
0.7-2.5 cm long
slender
white
translucid
109
location of d. megastoma
in tumour like swellings in fundus region of stomach
110
location of habronema
in mucous covering the gastric mucosa
111
life cycle of habronematidosis
indirect
112
intermediate hosts of habronematidosis
mucoid flies
113
prepatent perid of habronematidosis
2months
114
host of habronematidosis
eq
115
clinical signs of habronematidosis
1. stomach
2. lung
3. cutaneous
4. muco-cutaneous
116
stomach habronematidosis
nut sized tumour like nodular lesions
fibrous nodules in stomach
117
lung habronematidosis
peribronchila tissue nodules
118
cutaneous habronematidosis
summer sores on chest, fetlock, inner legs
119
mucocutaneous habronematidosis
3 deposited on conjunctiva
conjunctivits
granulomes
blepharitis
dermatitis
photophobia
lacrymation
eyelid ulceration
120
eggs of habronematidosisdetection
via flotation
121
L1 of habronematidosis detection
baermann
122
L3 of habronematidosis detection
in summer sores
123
necroscopy of habronematidosis
catarrhal enteritis
mass of worms in nodular lesions
necrotic debris protruding the stomach lumen
124
cause of setariosis
setaria equina
125
morphology of setariosis
5-12cm long
126
location of setariosis
peritoneal and pleural cavity
127
life cycle of setariosis
indirect
128
inter hosts of setariosis
mosquitoes
129
prepatent period of setariosis
8-9months
130
host of setariosis
eq
131
clinical signs of setariosis
lumbar paralysis
132
L1 of setariosis detection
blood
133
necroscopy of setariosis
conjunctivitis
exophthalmos
periorbital swelling
photophobia
lacrymation
discharge without granuloma or cysts
134
onchocercosis cause
o. cervicalis
o. reticulata
o. gutturosa
o. lienalis
o. gibsoni
o. jakutensis
o. dewtti japonica
o. lupi
135
morphology of onchocercosis
females > 50cm
136
morphology of o. gibsoni males
4cm
137
morphology of o. cervicalis males
6-7cm
138
morphology of o. reticularis males
15-20cm
139
location of onchocercosis
nodules in fibrous tissue of ligaments and intermuscular or sc CT of head and neck
140
life cycle of onchocercosis
indirect
141
intermediate host of onchocercosis
midges and blackflies
