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Parasitology - review > NEMATODES > Flashcards

NEMATODES Flashcards

(90 cards)

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1
Q

General characteristics of Nematodes

A
  1. Complete digestive tract
  2. Separate sexes
  3. Nonsegmented
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2
Q

soil transmitted nematodes

A

Unholy three (HAT)

  • Hookworms
  • Ascaris lumbricoides
  • Trichuris trichiura
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3
Q

heart-lung migration

A

ASH

  • Ascaris
  • Strongyloides
  • Hookworm
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4
Q

giant intestinal roundworm, lumbricus teres, eenworm

A

Ascaris lumbricoides

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5
Q

adult A.lumbricoides pathognomonic characteristic

A

trilobate (2 ventral, 1 dorsal lips)

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6
Q

male ascaris

A

ventrally curved posterior with two spicules

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7
Q

infective stage of Ascaris

A

embryonated egg

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8
Q

diagnostic stage of ascaris

A

unfertilized egg, fertilized egg, and adult

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9
Q

large roundworm of pig

A

Ascaris suum

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10
Q

toothed lip at the anterior end

A

Ascaris suum

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11
Q

(American hookworm,

American murderer, New world hookworm

A

Necator americanus

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12
Q

old world hookworm

A

Ancylostoma duodenale

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13
Q

cat hookworm

A

Ancylostoma braziliense

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14
Q

dog hookworm

A

Ancylostoma caninum

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15
Q

zoonotic hookworms

A

Ancylostoma ceylanicum, Uncinaria stenocephala

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16
Q

hookworm egg morphology

A

“MORULA BALL”

2 to 8 cell stages

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17
Q

infections in the GIT & lungs by

Ancylostoma spp

A

Wakana disease

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18
Q

infective form of hookwrorm

A

filariform larva

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19
Q

diagnostic stage of hookworm

A

fertilized egg

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20
Q

whipworm

A

Trichuris trichiura

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21
Q

Trichuris trichiura egg

A

Barrel/football/Japanese lantern with bipolar

plugs

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22
Q

Trichuris adult

A

thick and fleshy posterior and threadlike anterior

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23
Q

rectal prolapse

A

-T. trichiura

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24
Q

infective stage of trichuris

A

Embryonated eggs

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25
Diagnostic stage of Trichuris
unembryonated eggs
26
pathogenesis of trichuris
blood mucoid diarrhea, | rectal prolapse
27
parthenogenic worm
Strongyloides stercoralis
28
threadworm, military worm
Strongyloides stercoralis
29
Strongyloides stercoralis infection/pathogenesis
Disseminated infection in | immunosuppressed patients/cochin china diarrhea
30
IS of strongyloides
filariform larva
31
DS of strongyloides
rhabditiform larva
32
swollen belly syndrome
Strongyloides fuelleborni
33
oxyuris, pinworm, seatworm, society | worm
Enterobius vermicularis
34
“D-shaped”, flattened on one side
Enterobius vermicularis
35
Enterobius vermicularis adult
lateral wings or cephalic alae
36
Enterobius vermicularis pathogenesis
Pruritus ani , Mother’s complex
37
IS of E. vermicularis
Embryonated egg
38
DS of E. vermicularis
Embryonated egg
39
mystery worm, pudoc worm
Capillaria philippinensis
40
peanut/guitar-shaped, striated and flattened | bipolar plugs
Capillaria philippinens egg
41
borborygmi, malabsorption
Capillaria philippinens
42
IS of Capillaria philippinens
Filariform
43
DS of C. philippinensis
egg
44
causes visceral larva migrans, adult has cephalic alae
Toxocara canis and cati
45
Herring disease
Anisakis spp
46
similar to hookworm egg but pointed
Trichostrongylus
47
"dapaong tumor" or "turtle in the belly"
Oesophagostomum biforcum
48
throny headed worms
Acanthocephala spp
49
ingestion of encysted larva from rodent meat
Lagochilascaris minor:
50
lymphatic filarial worm that doesn't stain with giemsa
Brugia timori & W. bancrofti
51
sheperd's crook
Mansonella | streptocerca
52
Tropical pulmonary eosinophilia
Weingarten’s syndrome
53
Weingarten’s syndrome
Wuchereria bancrofti
54
milky/clear colored fluid in retriperitoneal | areas.
Chylocoele
55
W. bancrofti in scrotal lymphatics | Clear/straw colored fluid
Hydrocele
56
Meyers Kouwenaar Syndrome
microfilaria in spleen, | liver and lymphnode
57
IS of W. bancrofti
3rd stage larva
58
DS of W. bancrofti
microfilaria
59
nocturnal, vector is Anopheles spp., | cephalic space is 3:1, sheath unstained in giemsa
*Brugia timori:
60
Brugia malayi involves _____ lymphatics. a. UPPER b. LOWER
a. UPPER
61
Brugia timori cephalic space is ___
3:1
62
filarial worm unstained in Giemsa
W. bancrofti
63
filarial worm that appear to be smoothly curved in blood film
W. bancrofti
64
other names of Onchocerca vovulus
river blindness | blinding worm
65
vector of Onchocerca vovulus
Simulium or black fly or buffalo gnat
66
lizard/leopard skin, hanging groin pathogenesis of
Onchocerca vovulus
67
IS of O.volvulus
3rd stage larva
68
DS of O. volvulus
microfilaria
69
loa loa other name
african eye worm or eye worm
70
Loa loa vector
``` Chrysops, Fruit fly, Mango fly, deer flies, red flies, tabanid flies ```
71
causative agent of Fugitive/Calabar swelling
Loa loa
72
IS of Loa loa
3rd stage larva
73
vector is Cullicoides / Midge
Mansonella spp.
74
IS of Mansonella
3rd stage larva
75
DS of Mansonella
microfilaria
76
sheperd's crook is described as
nuclei extends to tip of tail
77
sheperd's crook is a characteristic of what Mansonella spp.
Mansonella streptocerca
78
microfilaria extends to top
M. perstans
79
Ozzard's filariasis
Mansonella ozzardi
80
new world infections
Mansonella ozzardi
81
tissue nematodes
1. Parastrongylus cantonensis 2. Trichinella spiralis 3. Dracunculus medinensis
82
other medically significant blood/tissue nematodes
1. Dirofilaria immitis 2. Gnathostoma spinigerum 3. Syngamus laryngeus 4. Thelazia callipaeda
83
oriental eye worm
Thelazia callipaeda
84
Syngamus laryngeus eggs is similar to
Hookworm
85
Gnathostoma spinigerum requires how many Intermediate host
2
86
vector of Dog heartworm
Aedes mosquito
87
IS of D. immitis
L3
88
DS of D. immitis
adult worm
89
rat lungworm, Angiostrongylus | cantonensis
Parastrongylus cantonensis
90
BARBER'S POLE PATTERN OF UTERUS
P. cantonensis

Parasitology - review (6 decks)

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