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MP LAB > [4] Cestodes > Flashcards

[4] Cestodes Flashcards

1
Q

cestodes phylum

A

Platyhelminthes

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2
Q

cestodes common name

A

Tapeworms

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3
Q

Complex life cycles except for

A

Hymenolepsis nana

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4
Q

cestodes 3 forms

A

eggs, larva, adults

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5
Q

cestodes; Non operculated except for

A

Diphyllobotrium latum

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6
Q

bears six tiny hooklets that
facilitate entry into the intestinal mucosa of the intermediate
host

A

Oncopshere or hexacanth embryo

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7
Q

may have one or more stages

A

larva

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8
Q
  • Flat and ribbonlike segmented body
  • Small intestine (common habitat)
  • Monoecious (hermaphrodites) and oviparous
A

adults cestodes

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9
Q

cestodes body consists of

A

Scolex, Neck, proglottids

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10
Q

anterior attachment organ
○ Four muscular, cup-shaped suckers, except for Diphyllobotrium
latum
○ May have a rostellum, an elongate and protrusible structure

A

scolex

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11
Q

region immediately posterior to scolex

A

neck

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12
Q

body segmentation

A

Proglottids

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13
Q

new segments; do not contain fully developed
structures

A

Immature

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14
Q

largers segments found near the middle of the
strobila (proglottid chain)

A

Mature

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15
Q

terminal portion

A

Gravid

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16
Q

Usually filled with eggs enclosed in the uterus
➢ May be dischared along with eggs in stools

A

Gravid

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17
Q

taenia saginata; Commonly known

A

Beef Tapeworms

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18
Q

taenia saginata; Mode of
Transmission

A

Ingestion of larvae in raw or undercooked
beef

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19
Q

taenia saginata; Infective stage

A

Oncospheres develops into cysticerci

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20
Q

taenia saginata; Diagnostic stage

A

Eggs, gravid proglottids

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21
Q

taenia saginata; Intermediate host

A

Cattle

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22
Q

taenia saginata; Definitive host

A

Human

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23
Q

MORPHOLOGY: TAENIA SAGINATA; Up to 100,000 eggs may be produced

A

EGG

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24
Q

MORPHOLOGY: TAENIA SAGINATA; Round to slightly oval, 31-43μm

A

EGG

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25
Q

MORPHOLOGY: TAENIA SAGINATA; Has two radially-striated shells
● Outer shell (thin, barely visible)
● Inner shell (thick, striated)

A

EGG

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26
Q

MORPHOLOGY: TAENIA SAGINATA; Contain six-hooked embryo (oncosphere)

A

EGG

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27
Q

MORPHOLOGY: TAENIA SAGINATA; Remains viable in soil for days to weeks

A

EGG

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28
Q

eggs are indistinguishable

A

T. solium and T. saginata

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29
Q

yes or no Ingestion of T. saginata eggs does not result in
infection

A

yes

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30
Q

MORPHOLOGY: TAENIA SAGINATA; Ovoid , cystic that contains non hooked scolex
inside segments that are immature

A

LARVAL- Cysticercus

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31
Q

MORPHOLOGY: TAENIA SAGINATA; Oncospheres develop into cysticerci

A

LARVAL- Cysticercus

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32
Q

MORPHOLOGY: TAENIA SAGINATA; 5-10mm in length and 5mm in diameter

A

LARVAL- Cysticercus

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33
Q

MORPHOLOGY: TAENIA SAGINATA; consists of a dense milky white spot at one side
where the invaginated scolex are located

A

LARVAL- Cysticercus

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34
Q

MORPHOLOGY: TAENIA SAGINATA; Usually measures 5 m or less but may reach up to

25 m

A

ADULT

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35
Q

MORPHOLOGY: TAENIA SAGINATA; Whitish opaque in color

A
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36
Q

MORPHOLOGY: TAENIA SAGINATA; similar to T. solium except reostellum is not well
defined and has no spines of hooklets

A

scolex (adult)

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37
Q

MORPHOLOGY: TAENIA SAGINATA; organ of attachment

A

scolex (adult)

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38
Q

MORPHOLOGY: TAENIA SAGINATA; Immature and Mature proglottid - broader than
longer

A

mmature and Mature proglottid

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39
Q

MORPHOLOGY: TAENIA SAGINATA; twice as many testes as T.solium

A

Proglottids (segments) - (~1000) (adult)

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40
Q

MORPHOLOGY: TAENIA SAGINATA; ● narrower than longer

A

Gravid proglottid

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41
Q

TAENIA SAGINATA; Laboratory Diagnosis

A
  1. Recovery of eggs and gravid proglottids in stool samples
  2. Proglottids – obtained through fixing in 10% formaldehyde solution
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42
Q

Proglottids – obtained through fixing in

A

10% formaldehyde solution

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43
Q

TAENIA SAGINATA; c or symptomatic

A

TAENIA SAGINATA;

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44
Q

Beef Tapeworm Infection

A

Taeniasis:

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45
Q

diarrhea, abdominal pain, change in appetite, and slight weight
loss, may be experienced by Taenia-infected patients.

A

Taeniasis:

46
Q

In addition, symptoms including dizziness, vomiting, and nausea
may also develop.

A

Taeniasis:

47
Q

Taeniasis; treatment

A

Praziquantel, Niclosamide, Paramomycin

48
Q

Taeniasis; prevention

A

cooking of beef thoroughly; proper sanitation practices

49
Q

TAENIA SOLIUM; common name

A

Pork Tapeworms

50
Q

TAENIA SOLIUM; MOT

A

Ingestion of larvae in raw or undercooked
pork

51
Q

TAENIA SOLIUM; Infective stage

A

Oncospheres develops into cysticerci

52
Q

TAENIA SOLIUM; Diagnostic stage

A

Eggs, gravid proglottids

53
Q

TAENIA SOLIUM; Intermediate host

A

Pigs, boars, black bears

54
Q

TAENIA SOLIUM; Definitive host

A

Human

55
Q

MORPHOLOGY: TAENIA SOLIUM; Up to 100,000 eggs may be produced

A

EGG

56
Q

MORPHOLOGY: TAENIA SOLIUM; Round to slightly oval, 31-43μm

A

EGG

57
Q

MORPHOLOGY: TAENIA SOLIUM; Has two radially-striated shells
● Outer shell (thin, barely visible)
● Inner shell (thick, striated)

A

EGG

58
Q

MORPHOLOGY: TAENIA SOLIUM; Contain six-hooked embryo (oncosphere)

A

EGG

59
Q

MORPHOLOGY: TAENIA SOLIUM; Remains viable in soil for days to weeks

A

EGG

60
Q

MORPHOLOGY: TAENIA SOLIUM; T.solium and T.saginata eggs are
indistinguishable

A

EGG

61
Q

MORPHOLOGY: TAENIA SOLIUM; Ingestion of T.saginata eggs does not result in
infection

A

EGG

62
Q

MORPHOLOGY: TAENIA SOLIUM;Similar with cysticerci of T. saginata

A

LARVAL-
Cysticercus

63
Q

MORPHOLOGY: TAENIA SOLIUM;Ovoid, cystic that contains non hooked scolex
inside segments that are immature

A

LARVAL-
Cysticercus

64
Q

MORPHOLOGY: TAENIA SOLIUM; Oncospheres develop into cysticeri

A

LARVAL-
Cysticercus

65
Q

MORPHOLOGY: TAENIA SOLIUM;5-10mm in length and 5mm in diameter

A

LARVAL-
Cysticercus

66
Q

MORPHOLOGY: TAENIA SOLIUM; Usually measures 2-3m

A

adult

67
Q

MORPHOLOGY: TAENIA SOLIUM; Globular with 4 cup-shaped suckers

A

Scolex

68
Q

MORPHOLOGY: TAENIA SOLIUM; Conspicuous, rounded rostellum armed with
double rows of large and small hooks
numbering 22 to 36

A

Scolex

69
Q

MORPHOLOGY: TAENIA SOLIUM; Short; measuring 5-10mm in length

A

Neck

70
Q

MORPHOLOGY: TAENIA SOLIUM; May reach up to ~1000 segments

A

Proglottids or Segments

71
Q

MORPHOLOGY: TAENIA SOLIUM; Immature - broaden than long

A

Proglottids or Segments

72
Q

MORPHOLOGY: TAENIA SOLIUM; Mature - nearly square

A

Proglottids or Segments

73
Q

MORPHOLOGY: TAENIA SOLIUM; located in the posterior
of the proglottid with the presence of
accessory ovarian lobe

A

Trilobed ovary

74
Q

MORPHOLOGY: TAENIA SOLIUM; longer than broader
○ ? uterus with 7-13 lateral uterine
branches arranged in a finger-like fashion

A

Gravid

75
Q

MORPHOLOGY: TAENIA SOLIUM; laboratory diagnosis

A
  1. Recovery of eggs and gravid proglottids in
    stool samples
  2. Proglottids – obtained through fixing in 10%
    formaldehyde solution
  3. Neurocysticercosis - Biopsy/CT scan
76
Q

TAENIA SOLIUM; asymptomatic or symptomatic

A

asymptomatic

77
Q

Pork Tapeworm Infection

A

Taeniasis

78
Q

diarrhea, abdominal pain, change in appetite, and slight weight
loss, may be experienced by Taenia-infected patients.

A

Taeniasis

79
Q

● In addition, symptoms including dizziness, vomiting, and nausea
may also develop.

A

Taeniasis

80
Q

Infection of humans with larval stage of the parasite

A

Human Cysticercosis

81
Q

Man becomes the intermediate host

A

Human Cysticercosis

82
Q

Outer shell of egg disintegrates in the small intestine, then
oncosphere invades intestinal wall and enter a blood vessel, and
eventually travels to human muscles

A

Human Cysticercosis

83
Q

causes seizures and muscle damage

A

Human Cysticercosis

84
Q

May infect eyes, brain, heart and liver

A

Human Cysticercosis

85
Q

most common parasitic disease of the CNS

A

Neurocysticercosis(NCC)

86
Q

taenesis; treatment

A

Praziquantel

87
Q

cystercosis ; treatment

A

Symptomatic treatment and surgery

88
Q

cystercosis ; prevention

A

SPractice good personal hygiene

89
Q

HYMENOLEPSIS NANA; Commonly known

A

Dwarf Tapeworms

90
Q

HYMENOLEPSIS NANA; Mode of Transmission

A

Fecal-oral route

91
Q

HYMENOLEPSIS NANA; Infective stage

A

Embryonated egg

92
Q

HYMENOLEPSIS NANA; Diagnostic stage

A

Embryonated egg

93
Q

HYMENOLEPSIS NANA;Intermediate host

A

none

94
Q

HYMENOLEPSIS NANA; Definitive host

A

human

95
Q

MORPHOLOGY: HYMENOLEPSIS NANA; Grayish hyaline, nearly spherical/oval (20-40μm)

A

EGG

96
Q

MORPHOLOGY: HYMENOLEPSIS NANA; Has two thin membranous shells, (embryo
protection)

A

EGG

97
Q

MORPHOLOGY: HYMENOLEPSIS NANA;Presence of filaments differentiates it from H.
diminuta

A

EGG

98
Q

MORPHOLOGY: HYMENOLEPSIS NANA; Hexacanth embryo with 6 hooklets (3 pairs)

A

ADULT

99
Q

MORPHOLOGY: HYMENOLEPSIS NANA; Usually measures 25-40mm in length

A

ADULT

100
Q

MORPHOLOGY: HYMENOLEPSIS NANA;200 (no. of proglottids)

A

ADULT

101
Q

MORPHOLOGY: HYMENOLEPSIS NANA; Globular, small

A

Scolex

102
Q

MORPHOLOGY: HYMENOLEPSIS NANA; short refractile rostellum with 20-30 small
hooklets

A

Scolex

103
Q

MORPHOLOGY: HYMENOLEPSIS NANA; 4 cup-shaped suckers

A

Scolex

104
Q

MORPHOLOGY: HYMENOLEPSIS NANA;- undifferentiated

A

Immature

105
Q

MORPHOLOGY: HYMENOLEPSIS NANA; trapezoidal shape; 4x as broad as long
○ has 3 round testes and bilobed ovary

A

Mature

106
Q

MORPHOLOGY: HYMENOLEPSIS NANA; contains the sacculate uterus filled
with eggs in egg packets

A

Gravid -

107
Q

HYMENOLEPSIS NANA; LABORATORY DIAGNOSIS

A

Recovery of characteristic ova in stool samples

108
Q

HYMENOLEPSIS NANA; symptomatic or asymptomatic

A

Asymptomatic

109
Q

Dwarf Tapeworm Infection

A

Hymenolepiasis:

110
Q

can cause weakness, headaches, and gastrointestinal symptoms
(anorexia, abdominal pain, and diarrhea).

A

Hymenolepiasis:

111
Q

Hymenolepiasis; treatment

A

Praziquantel; Niclosamide

112
Q

Hymenolepiasis; prevention

A

Practice good personal hygiene

MP LAB (9 decks)

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