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Cestodes (lab) Flashcards

1
Q

T/F: the embryonated beef tapeworm eggs is the infective stage to humans

A

F

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2
Q

T/F: the eggs of Taenia solium and Taenia saginata is indistinguishable from each other

A

T

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3
Q

T/F: T. solium adult is longer compared to the D. latus adult

A

F

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4
Q

The infective stage of the rat tapeworm

A

Cysticercoid larva

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5
Q

The common name of the only tapeworm that may or may not require an intermediate host

A

Dwarf tapeworm

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6
Q

The habitat of all cestodes

A

Small intestines

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7
Q

T/F: cestodes have GI tract

A

F

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8
Q

Opening for eggs from the gravid segments

A

Uterine pores

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9
Q

Where the male and female organs meet

A

Genital pore

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10
Q

Chains of segments or proglottids

A

Strobila

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11
Q

Manner of detachment of gravid segment

A

Apolysis

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12
Q

Term for the presence of hooks

A

Armed

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13
Q

A crown of scolex

A

Rostellum

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14
Q

Segments of tapeworm

A

Proglottids

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15
Q

Farthest proglottid from the scolex and releases the egg

A

Gravid/ripe proglottid

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16
Q

Which cestode egg is similar to P. westermani egg?

A

D. latus

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17
Q

Appearance of the scolex of D. latum

A

Spoon/almond-like

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18
Q

Proglottids located near the neck of the tapeworm

A

Immature

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19
Q

Proglottids located at the center of the tapeworm and is where the reproductive structures are found

A

Mature

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20
Q

Order of false tapeworm

A

Order Pseudophyllidea

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21
Q

Describe the strobila of Pseudophyllidea

A

Anapolytic

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22
Q

Describe the strobila of Cyclophyllidea

A

Apolytic

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23
Q

Describe the vitellaria of Pseudophyllidea

A

diffused with many follicles

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24
Q

Describe the vitellaria of Cyclophyllidea

A

compact and separate

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25
Describe the gravid proglottid of Pseudophyllidea
all reproductive organs present; rosette uterus
26
Describe the gravid proglottid of Cyclophyllidea
degenerate reproductive organs; except uterus
27
Describe the uterine pore of Cyclophyllidea
absent
28
Describe the uterine pore of Pseudophyllidea
present; median ventral surface
29
Describe the ova of Pseudophyllidea
oval, operculated, unembryonated
30
Describe the ova of Cyclophyllidea
spherical, non-operculated, embryonated
31
1st IH of Pseudophyllidea
Copepods
32
2nd IH of Pseudophyllidea
Freshwater fish
33
IH of Cyclophyllidea
lower forms of animals or arthropods
34
Humans are ____ host of D. latus
Definitive
35
Old name for Dibothriocephalus latus
Diphyllobothrium latum
36
Common name of D. latus
Broad fish tapeworm
37
Infective stage of D. latus
Plerocercoid larva
38
Longest and largest tapeworm of man
D. latus
39
AH of D. latus
Dogs, cats, rats
40
Habitat of D. latus
Ileum
41
2nd IH of D. latus
Freshwater fish
42
T/F: D. latus ova has a comma-shaped abopercular end
F (rounded)
43
Describe the shape of the D. latus proglottid
Wider than tall
44
Describe the rostellum of D. latus
no rostellum; no hooks
45
Cyclophyllidea: 4 cup-like suckers Pseudophyllidea: _____
2 slit-like grooves (bothria)
46
Chronic manifestation of D. latus
Pernicious anemia
47
Pathology of D. latus due to larva
Sparganosis
48
Pathology of D. latus due to adult
Diphyllobothriasis
49
Common name of Taenia solium
Pork tapeworm
50
Describe the rostellum of T. solium
Armed
51
Describe the immature proglottid of T. solium
Wider than tall
52
Describe the mature proglottid of T. solium
Square
53
Describe the gravid proglottid of T. solium
taller than wide
54
Pathology of T. solium due to adult
Taeniasis solium
55
Pathology of T. solium due to embryonated egg
Cysticercosis
56
Number of uterine branches of gravid T. solium proglottid
7-13
57
Number of T. solium segments usually seen in stool sample
5-6
58
Describe the branches of T. solium
Finger-like; dendritic
59
Common name of Taenia saginata
Beef tapeworm
60
Usual length of T. saginata
25 m
61
Describe the scolex of T. saginata
no rostellum; quadrate appearance
62
Describe the cup-like suckers of T. saginata
no hooks
63
Describe the uterine branches of T. saginata
tree-like appearance
64
Number of branches of T. saginata
15-29
65
Which tapeworm uses the double slide compression technique?
Taenia spp.
66
How are T. solium and T. saginata ova reported?
Taenia egg
67
Dye used for Taenia spp.
India ink or Carmine dye
68
T/F: diagnosis of Taenia infection is also possible with perianal swab
T
69
Common name of Dipylidium caninum
Double pored tapeworm, Flea tapeworm, Cucumber tapeworm
70
Describe the proglottids of D. caninum
Cucumber-like
71
IH of D. caninum
Fleas
72
Humans are ____ host of D. caninum
Accidental
73
Definitive host of D. caninum
Dogs
74
IS of D. caninum
Cysticercoid larva
75
Describe the rostellum of D. caninum
Armed; 7 hooklet rows
76
Pathology of D. caninum due to egg
Cysticercosis
77
Appearance of D. caninum gravid proglottid
Pumpkin seed-like appearance
78
Number of embryonated eggs encapsuled in the D. caninum egg packets
8-15
79
D. caninum individual eggs look like ____
Taenia egg
80
Humans are ___ host of H. diminuta
Accidental
81
IS of H. diminuta
Cysticercoid larva
82
IH of H. diminuta
Rat flea, cockroach, beetle
83
Appearance of H. diminuta scolex
Knob-shaped
84
Describe the rostellum of H. diminuta
unarmed
85
Describe the proglottids of H. diminuta
Wider than tall
86
Number of proglottids in H. diminuta
800-1000
87
Appearance of H. diminuta egg
Fried-egg appearance
88
H. diminuta or H. nana: has polar filaments
H. nana
89
Humans are ____ of H. nana
Definitive
90
Common name of H. diminuta
Rat tapeworm
91
Common name of H. nana
Dwarf tapeworm
92
Cestode capable of direct and indirect infection
H. nana
93
Appearance of adult H. nana
Rhomboidal appearance
94
Describe the rostellum of H. nana
Armed; 1 row of hooklets and 4 cup-like suckers
95
Size of H. nana proglottid
25-40 mm
96
Number of hooklet of H. nana
6 (3 pairs)
97
Number of polar filaments of H. nana
4-8
98
Common name of E. ganulosus
Hydatid worm
99
Describe the rostellum of E. granulosus
Armed; 4 cup-like suckers
100
The only cestode with 3 proglottids
E. granulosus
101
E. granulosus look like ____ egg
Taenia
102
Daughter cyst or protoscolex: attached to the germinal layer
Protoscolex
103
Alternative technique for removing hydatid cyst aside from surgery
Puncture Aspirate Inject Reaspirate

Para FINALS ! (3 decks)

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