NEMATODES Flashcards

1
Q

NEMATODES STAGES IN LIFE CYCLE

A

egg, larvae, adults

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2
Q

most common intestinal nematode

A

Ascaris Lumbricoides

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3
Q

Common Name for Ascaris Lumbricoides

A

Giant Intestinal Roundworm

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4
Q

outer covering of fertilized A. Lumbricoides ova

A

albuminoid coat

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5
Q

3 layers of egg shell in A. Lumbricoides

A

> inner non permeable vitelline membrane
thick transparent middle layer glycogen Membrane
Outer coat albuminoid layer

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6
Q

larvae migration of A.lumbriocides in lungs causes

A

Ascaris Pneumonitis

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7
Q

Disease of Poverty

A

Loaffler’s Syndrome or STH

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8
Q

Habitat of A. lumbricoides

A

Small Intestine

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9
Q

MOT of A. lumbricoides

A

Ingestion of embryonated eggs

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10
Q

Infective stage of A. lumbricoides

A

Embryonated ova

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11
Q

Stool examinations for the diagnosis of Ascariasis

A

> DFS - 2mg
Concentration techniques - kato katz, FECT

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12
Q

Treatment for A.lumbricoides

A
  • Albendazole
  • Mebendazole
  • Pyrantel pamoate
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13
Q

AKA dog and Cat ascaris

A

Toxocara canis & Toxocora cati

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14
Q

Habitat of Toxocara canis & Toxocora cati

A

Small Intestine

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15
Q

MOT of Toxocara canis & Toxocora cati

A

Accidental Ingestion by human

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16
Q

Treatment for Toxocara canis & Toxocora cati

A

Thiabendazole

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17
Q

Common name for trichuris trichuria

A

Whipworm

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18
Q

loss of muscle tone of anal sphincter

A

rectal prolapse

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19
Q

habitat of trichuris trichuria

A

Large Intestine

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20
Q

MOT of trichuris trichuria

A

Ingestion of embryonated eggs

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21
Q

infective stage of trichuris trichuria

A

embryonated eggs

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22
Q

lab diagnosis for trichuris trichuria

A

Laboratory Diagnosis:
- Stool examination
> DFS
> Concentration techniques: Kato-katz, FECT

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23
Q

Treatment for trichuris trichuria

A

Albendazole
- Mebendazole

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24
Q

AKA New World Hookworm

A

Necator Americanus

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25
Q

habitat of Necator Americanus and Ancylostoma duodenale

A

Small Intestine

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26
Q

MOT of Hookworms

A

Skin penetration of filariform larvae

Ingestion of contaminated food

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27
Q

Infective stage of hookworms

A

Filariform larvae

28
Q

Treatment for hookworms

A

Albendazole
- Mebendazole
- Pyrantel pamoate
- Iron supplements

29
Q

life span of N. Americanus

A

14 years

30
Q

AKA the old world hookworm

A

Ancylostoma duodenale

31
Q

shortest life span

A

Ancylostoma Braziliense

32
Q

longest life span

A

Ancylostoma caninum

33
Q

able to produce offspring w/o fertilization with males

A

parthenogenetic

34
Q
  • Smallest intestinal nematode in man
A

Strongyloides stercoralis

35
Q

3 life cycle of Strongyloides stercoralis

A

Direct Cycle
Indirect Cycle
Autoinfection

36
Q

skin penetration of filariform larva from the soil and female matures in S.I

A

Direct Cycle

37
Q

Rhabditiform larva developed into sexually mature free-living female and produced partially embryonated ova

A

Indirect cycle

38
Q

development of rhabditiform into filariform larva while entransit down the bowel

A

autoinfection

39
Q

habitat of S. Stercoralis

A

Small Intestine

40
Q

MOT of S. Stercoralis

A

Skin penetration of filariform larvae

Autoinfection

41
Q

infective stage of s. stercoralis

A

filariform larvae

42
Q

treatment for s. stercoralis

A

thiabendazole

43
Q
  • parasite of monkeys and apes
  • cause of zoonotic infection in man in africa and some parts os Asia
A

Strongyloides fuelleborni

44
Q

MOT of Strongyloides fuelleborni

A

breastfeeding

45
Q

Common name of S. stercoralis

A

Threadworm

46
Q

Common name of Enterobius vermicularis

A

Pinworm/Seatworm

47
Q

habitat of Enterobius vermicularis

A

Large Intestine

48
Q

MOT of Enterobius vermicularis

A
  • ingestion of egg
  • inhalation of IS
    -autoinfection
    -retroinfection
49
Q

infective stage of Enterobius vermicularis

A

embryonated egg

50
Q

treatment for Enterobius vermicularis

A

Albendazole
- pyrantel pamoate

51
Q

Discovered by: Nelia P. Salazar

A

Capillaria Philippinensis

52
Q

where is the first reported case of Capillaria Philippinensis

A

Ilocos

53
Q

direct host of Capillaria Philippinensis

A

man, fish eating birds

54
Q

intermediate host Capillaria Philippinensis

A

freshwater fishes

55
Q

gurgling stomach

A

borborygmus

56
Q

oviparous, 8-10 eggs in single row

A

typical

57
Q

larviparous, 40-45 eggs in 2-3 rows, eggs hatch while in utero

A

atypical

58
Q

flattened bipolar plug w/ thick striated shell, peanut shaped

A

typical

59
Q

thin shelled w/o polar plug

A

atypical

60
Q

common name of Capillaria Philippinensis

A

pudoc’s worm

61
Q

habitat of Capillaria Philippinensis

A

small intestine

62
Q

MOT of Capillaria Philippinensis

A

Ingestion of contaminated fish

63
Q

-Accidental ingestion of infected process meats
- After exposure to gastric acid and pepsin;

A

Trichinella spiralis

64
Q

common name of Trichinella spiralis

A

trichina worm

65
Q

MOT of Trichinella spiralis

A

ingestion of encysted larvae in undercooked pork

66
Q

diagnosis of Trichinella spiralis

A

muscle biopsy

67
Q

treatment for Trichinella spiralis

A

mebendazole