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Parasitology > 2nd Shifting Nematodes > Flashcards

2nd Shifting Nematodes Flashcards

1
Q

Nematodes are also called

A

Round worms

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2
Q

A term for worms

A

Helminths

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3
Q

Nematodes belong to what Phylum

A

Phylum Nematoda

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4
Q

True or False

Nematodes are bilaterally symmetrical

A

True

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5
Q

True or False

Nematodes are cylindrical, elongated and segmented

A

False

Nematodes are cylindrical, elongated and NON segmented

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6
Q

What kind of pharynx do nematodes have

A

Triradiate muscular pharynx

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7
Q

Refers to the body cavity

A

Pseudocoel

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8
Q

Amphids and Phasmids are examples of

A

Chemoreceptors

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9
Q

Chemoreceptor possessed by all nematodes

A

Amphids

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10
Q

Chemoreceptor not possessed by all nematodes

A

Phasmids

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11
Q

No phasmids

A

Aphasmids

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12
Q

Aphasmids are grouped under

A

Aphasmida

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13
Q

3 kinds of nematodes under Aphasmida

A

Trichiris
Trichinella
Capillaria

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14
Q

True or False

Nematodes are monoecious

A

False

Nematodes are dioecious

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15
Q

Body covering of nematodes

A

Chitinous Cuticle

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16
Q

True or False

Nematodes possess circulatory system

A

False

Nematodes do not have circulatory system

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17
Q

4 Egg laying capacity of Nematodes

A

Oviparous
Ovoviviparous
Larviparous
Parthenogenetic

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18
Q

Immature egg and no embryo

A

Oviparous

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19
Q

Mature egg and embryonic

A

Ovoviviparous

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20
Q

Larva laying females

A

Larviparoud

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21
Q

Capable of self fertilization

A

Parthenogenetic

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22
Q

True or False

Ovoviviparous produces immature and non embryonic

A

False

Ovoviviparous produces mature and embryonic

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23
Q

True or False

Oviparous produces immature and embryonic

A

False

Oviparous produces immature and no embryo

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24
Q

3 Stages of Nematodes

A

Egg
Larva
Adult

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25
Q

True or False

Larva stage has 3 stages

A

False

Larva stage has 4 stages

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26
Q

True or False

The stages of nematodes are larva, egg and adult

A 
False
The stages of nematodes are 
Egg
Larva
Adult
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27
Q

True or False

Male nematodes are smaller than females

A

True

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28
Q

Male nematodes have _________ posterior

A

Curved

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29
Q

Some males may possess

A

Copulatory bursa

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30
Q

Females have ___________ posterior

A

Pointed

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31
Q

Common name of Ascaris lumbricoides

A

Giant intestinal roundworm

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32
Q

Final host of Ascaris lumbricoides

A

Man

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33
Q

Habitat of Ascaris lumbricoides

A

Small intestine

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34
Q

Infective Stage of Ascaris lumbricoides

A

Embryonated egg with larva

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35
Q

Mode of transmission of Ascaris lumbricoides

A

Oral fecal

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36
Q

What parasite undergoes heart lung migration

A

Ascaris lumbricoides

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37
Q

True or False

After going to the small intestine, Ascaris lumbricoides undergoes heart lung migration and goes to the large intestine

A

False

It goes back to the small intestine

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38
Q

Diagnostic stage of Ascaris lumbricoides

A

Eggs in stool

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39
Q

How will Ascaris lumbricoides eggs embryonate

A

They should find their way back to the soil

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40
Q

The adult Ascaris lumbricoides worm has _______ in its anterior part

A

Trilobate lips

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41
Q

The posterior of female Ascaris lumbricoides is

A

Pointed

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42
Q

What is the thick portion in female Ascaris lumbricoides

A

Genital girdle

43
Q

The posterior portion of Male Ascaris lumbricoides is

A

Curved

44
Q

Male worms gave ________ for copulation

A

Spicule

45
Q

4 Eggs of Ascaris lumbricoides

A

Unfertilized
Fertilized Decorticated
Fertized Corticated
Embryonated Egg

46
Q

Unfertilized egg of Ascaris is ______ in shape

A

Oval

47
Q

Only layer of unfertilized Ascaris lumbricoides

A

Glycogen layer

48
Q

Function of glycogen layer

A

Covers coarse lecithin granules

49
Q

Coarse granules covered by glycogen in unfertilized egg

A

Lecithin

50
Q

2 layers of Unfertilized egg of Ascaris lumbricoides

A

Glycogen

Coarse lecithin granules

51
Q

It has
Glycogen
Vitellin/lipoidal layer
Organized fine granules/amorphous protoplasm

A

Fertilized decorticated

52
Q

Shat covers the organized fine granules or amorphous protoplasm of fertilized corticated egg of Ascaris lumbricoides

A

Lipoidal layer or vitelline layer

53
Q

Innermost part of fertilized decorticated egg

A

Organized fine granules or amorphous protoplasm

54
Q

3 layers of fertilized decorticated egg of Ascaris lumbricoides

A

Gluycogen
Vitelline/Lipoidal layer
Organized fine granules/Amorpohous protoplasm

55
Q

It has the most number of layers in eggs of Ascaris

A

Fetilized Corticated

56
Q

What is the outermost part of fertilized corticated

A

Mamillary/Albuminous

57
Q

What differentiates the fertilized corticated from fertilized corticated

A

Presence of Albuminous/Mamillary

58
Q

4 parts of fertilized corticated

A

Mamillary/Albuminous
Glycogen
Vitelline/Lipoidal layer
Organized fine granules/Amorphous Protoplasm

59
Q

True or False

Embryonated egg is found in stool

A

False

Embryonated egg is not found in stool

60
Q

Embryonated egg houses the

A

Larvae

61
Q

Pathology of Ascaris lumbricoides

A

Ascariases

62
Q

4 Signs of Ascariasis (?)

A

Loefller’s syndrome
Intestinal obstruction
Intestinal perforation
Erratic worms

63
Q

Refers to migrating larva

A

Loeffler’s syndrome

64
Q

Refers to being torn

A

Intestinal obstruction

65
Q

Methods used for stool examination of Ascaris

A

DFS
Kato Katz
FECT

66
Q

Instead of stool, _______ exam can also be done for Ascaris

A

Sputum examination for larva detection

67
Q

Drug of choice for Ascaris

A

Mebendazole

68
Q

Cn of trichuris trichiura

A

Whipworm

69
Q

FH of Trichuris trichiura

A

Man

70
Q

Habitat of Trichuris trichiura

A

Large intestine

71
Q

Manner of attachment of Trichuris

A

Pin fashion manner in anterior part

72
Q

Infective Stage of Trichuris

A

Embryonated egg

73
Q

Mode of transmission of Trichuris

A

Oral fecal

74
Q

The adult Trichuris has what kind of anterior

A

Attenorated anterior 3/5

75
Q

Describe the anterior circles of adult trichuris

A

String of beads/pearls

76
Q

True or False

The adult Trichuris has thick or robust posterior

A

True

77
Q

Shape of egg of Trichuris

A

Football
Japanese lantern
Barrel shaped
Lemon shaped

78
Q

Special circular formation in the anterior and posterior part of Trichuris

A

Bipolar mucus plugs

79
Q

Color of bile stained Trichuris

A

Dark yellow

80
Q

True or False

Trichuris trichiura has striations

A

False

It has no striations

81
Q

Dx of Trichuris trichiura

A

Stool examination

82
Q

Pathology of Trichuris

A

Trichuriasis

83
Q

Signs of Trichuriasis

A

Anemia
Bloody diarrhea
Rectal prolapse

84
Q

Condition in which the rectum goes out

A

Rectal prolapse

85
Q

Has common name if seatworm

A

Enterobius vermicularis

86
Q

Common names of Enterobius vermicularis

A

Seat worm
Society worm
Pinworm

87
Q

Final host of Entero vermicularis

A

Man

88
Q

Habitat of Enterobius vermicularis

A

Colon-Large intestine

89
Q

Infective Stage of Enterobius vermicularis

A

Embryonated egg

90
Q

3 modes of transmission for Enterobius vermicularis

A

Ingestion
Retroinfection
Inhalation

91
Q

Refers to MOT wherein the worm crawls back to the anus

A

Retroinfection

92
Q

Reasons why female Enterobius vermicularis migrates to the perianal area at night

A

Cold at night

Oxygen at perianal area

93
Q

How many hours does it take for the embryonation of Enterobius vermicularis

A

4-6 hrs only

94
Q

The adult Enterobius vermicularis has ________ in its anterior portion

A

Cephalic alae

95
Q

This cephalic alae is like a _________

A

Wing like receptor

96
Q

Shape of esophagus of Enterobius vermicularis

A

Bulb shaped or flask shaped

97
Q

Wing like receptor of Enterobius vermicularis

A

Cephalic alae

98
Q

2 layers of eggs of Enterobius vermicularis

A

Albuminous

Lipoidal

99
Q

Shape of egg of Enterobius vermicularis

A

D shaped

Lopsided

100
Q

Pathology of Enterobius vermicularis

A

Nocturnal Pruritus

101
Q

Diagnostic Stage of Enterobius vermicularis

A

Egg

102
Q

How to diagnose Enterobius vermicularis

A

Scotch tape swab or perianal swab

Fingernals

103
Q

True or False

Stool examination is recommended for Enterobius vermicularis

A

False

Stool examination yields only 5% accurate results

Parasitology (1 decks)

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