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PARASITOLOGY > additional > Flashcards

additional Flashcards

1
Q

Size: Adult worms are relatively small, ranging from 2 to 4 meters in length.
Scolex: Features a small, rounded scolex with four suckers and a rostellum armed
with hooks.
Proglottids: The mature proglottids are wider than they are long and contain a
uterus with 7 to 11 lateral branches, each ending in an egg.
Genital Pore: Located laterally on mature proglottids.
Eggs: Oval-shaped, with a radially striated shell.

A

t solium

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2
Q

Size: Adult worms are larger, ranging from 4 to 10 meters in length.
Scolex: Features a larger, rounded scolex with four suckers but lacks a rostellum
or hooks.
Proglottids: Mature proglottids are longer than they are wide and contain a
uterus with 12 to 32 lateral branches, each ending in an egg.
Genital Pore: Located medially on mature proglottids.
Eggs: Oval-shaped, similar to T. solium, with a radially striated shell.

A

t saginata

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3
Q

Size: Similar in size to Taenia saginata, ranging from 4 to 8 meters in length.
Scolex: Resembles the scolex of Taenia saginata, featuring four suckers but
lacking a rostellum or hooks.
Proglottids: Morphologically similar to T. saginata, with mature proglottids being
longer than they are wide, and a uterus containing multiple lateral branches.
Genital Pore: Located medially on mature proglottids.
Eggs: Oval-shaped, similar to T. solium and T. saginata, with a radially striated
shell.

A

t asiatica

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4
Q

are the only two
species belonging to the family lymenolepididae that are
known to infect man.

A

Hymenolepis nana and H. diminuta

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5
Q

parasite in rats that can cause human
infections.

A

H. diminuta

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6
Q

one of the most common cestodes
affecting man, especially children,

A

H. nana is

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7
Q

The most characteristic morphologic feature of
this group is the small number of testes, usually just three,
the unilateral genital pores, and the large external seminal
vesicle.

A

hymenolepis spp.

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8
Q

most widespread helminthic infection.

A

pinworm

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9
Q

how many eggs does gravid female vermiculari deposit

A

4,600 to 16,000 eggs

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10
Q

where is e vermicularis prevalent i

A

subtropical countries

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11
Q

angiostrongylus cantonensis lays how many eggs

A

15,000 eggs

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12
Q

paratenic and definitive host of angiostrongylus cantonensis

A

paratenic host = freshwater prawn or crab. definitive host = rat

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13
Q

their egg are unemryonated when oviposited

A

angiostronylus cantonensis

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14
Q

trichinella spiralis type parasite

A

parasiic roundworm

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15
Q

smallest human nematode parasite

A

t spirlais

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16
Q

2 type of trichinella

A

encapsulatingand and non-encapsulating all species of t spiralisare morphologicially indistinguishable

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17
Q

encapsulating species of t spiralis

A

t.t spiralis
t nativa
t britovi
t murelli
t nelsoni

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18
Q

non encapsulating speccies

A

t pseudospiralis
t papuae
t zimbabwensis

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19
Q

disease in t spiralis

A

trichinaisais

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20
Q

secretry function of t spirals

A

schistosome.

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21
Q

tissue of t spiralis lining tissue of adut and larva

A

stichocyte

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22
Q

life cycle f t spiralis depends on

A

transmission and mammalian host involved

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23
Q

life cycle of t spiralis

A

domestic, sylvatic-tropical, sylvatic temperate and sylvatic arctic

24
Q

domesttic life cycle

A

t sralis

25
Q

sylvatic tropical

A

t nelsoni

26
Q

sylvatic temperate

A

t britovi, t murrelli

27
Q

slylvatic articulationt

A

t nativa

28
Q

posterior c philipinensis female

A

anterior end

Oviparous
Larviparous

29
Q

Requires an arthropod intermediate host in
its life cycle.

A

h diminuta

30
Q

natural definitive
hosts. of h nanaa

A

man, mice, rat

31
Q

immediate host of h diminuta

A

arthropod

32
Q

recognized as a true zoonosis,or zoonotic

A

h diminuta

33
Q

direct fecal smea, wet smear, stoool analysis diagnosis

A

hymenollepis spp

34
Q

the parasite has an
indirect life cycle, with fleas

A

d caninum

35
Q

(attachment or holdfast organ),

A

scolex

36
Q

anterior tip of the scolex is a
rostellum, which is armed with several
circles of hooks.4 circular muscular sucker

A

d caninum

37
Q

ribbon shaped segmenr with anterior scolex

A

d caninum

38
Q

eggs are grouped in egg pockets

A

d caninum

39
Q

egg has fragle shell with typical hexacanth larva with six hook.

A

d caninum egg

40
Q

intermediate host of d caninum

A

flea and lice

41
Q

transmission of d caninumin humans

A

ingestion of infected flea

42
Q

diagnosia of d caninum

A

pcr, fecal flotation,, antigen detection of mature proglottid

43
Q

ovoid, golden-brown, and have an operculum at one end with a small
thickening of the shell at the opposite end

A

d latum egg

44
Q

North
America. paragonimus

A

o. kellicoti

45
Q

food-borne helminthiasis, and one of the FBH

A

p estermani

46
Q

adult form is reddish brown, ovoid, and thick and fleshy.

Egg-shaped fluke and/or resemble a coffee bean shape.

A

pp westermani

47
Q

operculated egg are ovoid,
and asymmetrically flattened on
one side.

A

p westermani

48
Q

egg is unembryonated when
excreted in stool or sputum.

A

p westermani

49
Q

Embryonated eggs
“Miracidia”, hatch and
seeks the first
Intermediate Host:

A

p westermani

50
Q

miracidia stage

A

sporocysts and 22 stage of rediae

51
Q

intermediate host of p westermani

A

snail (first), freshwater crabcrayfish

52
Q

Clinical signs/symptoms are sometimes confused with Pulmonary
Tuberculosis

A

transmission of p westermani

53
Q

used in the integrated
paragonimiasis and pulmonary tuberculosis surveillance. ]

technique can differentiate the causative agents of pTB (acid-
fast baccili) and paragonimiasis from one another.

A

Ziehl-Neelsen Staining (ZNS)

54
Q

used
when the sputum is too viscous, a 3% of sodium hydroxide is
added and processed for clearing and concentration.

A

naoh concenrtation technique

55
Q

definitive host of p westermani

A

mammals

56
Q

reservoir host/paratenic host

A

mammal pork and wild pig that eat crustaceans

57
Q
A

PARASITOLOGY (7 decks)

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