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4.1 - Entamoeba, Giardia and others > review > Flashcards

review Flashcards

1
Q

chilomastix mesnili is

more/less

common than other flagella

A

less common

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2
Q

chilomastix mesnili shape

A

lemon - nipple like protuberance

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3
Q

single nucleus & karyosome: vesicular type

A

chilomastix mesnili cyst

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4
Q

shape of chilomastix mesnili trophozoite

A

asymmetrical pear shaped - due to spiral groove

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5
Q

what is the movement of chilomastix mesnili

A

corkscrew / boring motion

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6
Q

shape of chilomastix mesnili cyst with cytostome

A

hour-glass

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7
Q

shape of chilomastix mesnili trophozoite with 1 nucleus and karyosome

A

karyosome near rounded, anterior end

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8
Q

chilomastix mesnili is

pathogenic
non-pathogenic

A

non-pathogenic

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9
Q

reproduction of chilomastix mesnili

A

binary fission

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10
Q

habitat of chilomastix mesnili

A

colon; lower GIT

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11
Q

infective stage of chilomastix mesnili

A

cyst

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12
Q

giardia lamblia is

pathogenic
non-pathogenic

A

pathogenic

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13
Q

what is the shape of giardia lambia cyst

A

ovoid

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14
Q

what is diagnostic feature of giardia lamblia cyst

A
  • 2 axosomes
  • retracted cytoplasm: space between cytoplasm and cyst wall
  • 4 nuclei in mature cyst
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15
Q

mature cyst of giardia lamblia have

2 nuclei
4 nuclei
6 nuclei

A

4 nuclei

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16
Q

infective stage of giardia lamblia

A

trophozoite

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17
Q

shape of giardia lamblia

A
  • symmetrically pear shaped

- no spiral groove

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18
Q

what is movement of giardia lamblia

A

tumbling motility - no spiral grove

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19
Q

motility of giardia lamblia

A

falling leaf

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20
Q

manner of transmission is via

A

ingestion of the cyst through contaminated food and drink

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21
Q

where does giardia lamblia excytation take place

A

small intestine

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22
Q

where does trophozoite habitate

A
  • duodenum

- coat or carpet intestinal mucosa

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23
Q

how does giardia lamblia cause malabsroption

A

coating or carpeting the interstinal mucosal

24
Q

Steatorrheic or Gruelly stool is due to

A

malabsorption of fat

25
Q

special diagnostic tool of giardia lamblia

A

entero or string test

26
Q

doc for giardia lablia

A

metronidazole

27
Q

5 Parasites in which Trophozoite is Infective Stage

A
  • Entamoeba gingivalis
  • Trichomonas tenax
  • Trichomonas hominis
  • Trichomonas vaginalis
  • Dientamoeba fragilis
28
Q

morphology of dientamoeba fragilis

A
  • granular cytoplasm, irregular shape
  • Karyosome in the form of 4-8 beads
  • Tetracocci karyosome – 4 karyosome
29
Q

ingestion of dientamoeba fragilis

A

thru eggs of enterobius vernicularis

30
Q

habitat of dientamoeba fragilis

A

large intestine

31
Q

3 pathogenic but non invasive

A
  • dientamoeba fragilis
  • giardia lamblia
  • trichomonas vaginalis
32
Q

characteristic of dientamoeba fragilis disease

A
  • mucous diarrhea

- due to irriation of intesinal mucosa, mucous secretion

33
Q

doc for dientamoeba fragilis

A

metronidazole

34
Q

shape of trichomonas

A

ovoidal

35
Q

infective stage of trichonomas

cyst
trophozoite

A

trophozoite - no cyst stage

36
Q

how is trichomonas hominis different from the other trichomonas

A
  • post trailing post end of flagellum
  • rigid axostyle
  • one granules look like karyosome
  • conspicuous cytostome
37
Q

Parasites that have Cytostome in Cyst and Trophozoite Stage

A

chilomastix mesnili

38
Q

since features are hard to find, how do we diagnostically examine

A
  • look where the specimen came from

- proper collection without contamination

39
Q

“pyuria alveolaris” associated with

A

trichonomas tenax

40
Q

habitat of trichonomas tenax

A

oral cavity

41
Q

habitat of trichonomas vaginalis

A

vaginal mucosa or prostate gland

42
Q

habitat or trichonomas hominis

A

large intestine

43
Q

shape of t. tenax trophozoite

A

ovoidal

44
Q

pathogenic stage of t. tenax

A

non pathogenic

45
Q

what stages of kissing is t. tenax spread

A

3rd and 4th

46
Q

infective stage of t. hominis

A

trophozoite

47
Q

habitat of t. hominis

A

large intestin; cecum

48
Q

this type of patient susceptible to t. hominis

A

in patient with achlordydria aka without acid

49
Q

pathogenic stage of t. hominis

A

non pathogenic

50
Q

t. vaginalis causes

A

trichomoniasis

51
Q

“ping pong infection” associtated with

A

trichomonoiasis - t. vaginalis

52
Q

non venereal transmission

A
  • communal bathing
  • contaminated toilet seats
  • through birth canal
  • sharing of douche equipment
53
Q

doc for t. vaginalis

A

metronidazole

54
Q

infective stage is trophozoite

A
  • t. hominis
  • t. tenax
  • t. vaginalis
  • e. gingivalis
  • d. fragilis
55
Q

3 organisms with cytostome

A

c. mesnili - cyst and trophozoite
e. coli - trophozoite
t. hominis - conspicuous

4.1 - Entamoeba, Giardia and others (3 decks)

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