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Parasitology > Amoeba, Flagellates, & Ciliates > Flashcards

Amoeba, Flagellates, & Ciliates Flashcards

1
Q

Amoeba of pigs and monkeys

A

Entamoeba polecki

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2
Q

Entamoeba found in the mouth

A

Entamoeba gingivalis

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3
Q

Entamoeba that doesn’t encyst

A

Entamoeba gingivalis

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4
Q

Food vacuoles contain cellular debris mostly leukocytes

A

Entamoeba gingivalis

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5
Q

Small intestinal amoeba

A

Endolimax nana

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6
Q

Cross-eyed cyst

A

Entamoeba nana

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7
Q

Amoeba of pigs

A

Iodamoeba butschlii

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8
Q

Has a large glycogen vacuole and large karyosome arranged like a basket of flowers

A

Iodamoeba butschlii

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9
Q

Stained by Iodine

A

Iodamoeba butschlii

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10
Q

FECT

A

Formalin ether concentration technique

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11
Q

What is recovered from formed stool?

A

Cyst stage

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12
Q

What is recovered from watery stool?

A

Trophozoite stage

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13
Q

Treatment for commensal amoeba

A

No treatment is necessary

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14
Q

Ubiquitous free-living amoeba

A

Acanthamoeba

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15
Q

GAE

A

Granulomatous amebic encephalitis

By Acanthamoeba

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16
Q

AK

A

Acanthamoeba keratitis By Acanthamoeba

- opportunistic ocular surface pathogen

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17
Q

Characterized by an active trophozoite stage

A

Acanthamoeba

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18
Q

Thorn-like apendages

A

Acanthapodia in Acanthamoeba

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19
Q

Aquatic organism

A

Acanthamoeba

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20
Q

Trophozoite is its infective stage although both troph and cyst gain entry to the body

A

Acanthamoeba

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21
Q

Portal of entry of Acanthamoeba

A

Through the ye, nasal passages to the respiratory tract, or ulcerated or broken skin

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22
Q

Acanthamoeba is a possible reservoir host for what bacteria?

A

Legionella spp.

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23
Q

Associated with the use of improperly disinfected contact lenses

A

Acanthamoeba keratitis

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24
Q

Invades the CNS

A

Acanthamoeba and Naegleria fowleri

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25
Family of Acanthamoeba
Family Acanthamoebidae
26
Diagnosed by corneal scraping or epithelial biopsy
Acanthamoeba keratitis
27
Diagnosis of GAE
Usually post-mortem
28
First diagnosed Acanthamoeba GAE in living patient
DeJonckheere in 1991
29
Treatment for Acanthamoeba
A- amphotericin B F- fluorocystine K- ketoconazole
30
Free-living protozoan with 2 vegetative forms
Naegleria fowleri - ameboid (trophozoite form): humans - flagellate (swimming form): water * dormant cyst form- when conditions are not favorable
31
Thermophilic organisms
Naegleria
32
What are found in the CSF
N. Fowleri trophozoites
33
PAM
Primary amebic meningoencephalitis by N. fowleri | - rare but rapidly destructive and fatal
34
Portal of entry of N. fowleri
Olfactory bulb
35
Characteristics of the CSF of an individual with PAM
- elevated WBC count with neutrophilic predominance - high protein - low glucose
36
Treatment for N. fowleri
A- amphotericin B | C- clotrimazole
37
Presence of amebostomes
Naegleria fowleri
38
Free-living ameboflagellate
Naegleria fowleri
39
Other pathogenic determinants of N. fowleri
- secretion of lytic enzymes - membrane pore-forming proteins - induction of apoptosis - direct feeding of the amoeba
40
N. fowleri belongs to what family?
Family Vahlkampfiidae
41
Morphologically similar but biochemically distinct species present in the country
N. philippinensis
42
Initially identified as Paramecium coli by blank in blank
Balantidium coli | -by malmsten in 1857
43
Virulance factor of balantidium coli
Hyaluronidase
44
Largest protozoa of man
Balantidium coli
45
Reservoir host of B. Coli
Pigs
46
Movement of B. coli
Thrown ball or rotary
47
Treatment for B. coli
M- metronidazole I- iodoquinole T- tetracycline Mit? Diba karne yon tapos galing sa PIG 😪😂
48
Characteristics of Balantidium coli trophozoite
- cytostome: mouth (funnel-like) - cytopyge: anus - cilia - micronucleus: contains DNA for reproduction - macronucleus: for vegetative func. - contracting vacuoles: 2 for osmoregulation
49
Characteristics of B. Coli cyst
- micronucleus - macronucleus - double walled
50
Classified member of stramenopiles
Blastocystis hominis
51
Other term for Giardia lamblia
G. duodenalis | G. Intestinalis
52
Causes traveller’s diarrhea, beaver fever, gay bowel syndrome
Giardia lamblia
53
Habitat of G. lamblia
Small intestine
54
Reservoir host of G. lamblia
Beaver
55
Falling leaf movement
G. lamblia
56
Enterotest/ beales’ string test
G. lamblia
57
Characteristics of G. lamblia troph
- pyriform - 2 nuclei - bilaterally symmetrical - 8 flagella - ventral sucking disc (virulence factor): for attachment - parabasal bodies (claw hammer shaped): energizing sttucture - axostyle: support and movement
58
Characteristics of G. lamblia cyst
- oval shaped - up to 4 nuclei - parabasal bodies - axostyle
59
First discovered by Leeuwenhoek in 1681
G. lamblia
60
Crcomonas intestinalis
By Lambl in 1859 who forst described G. lamblia
61
Trichomonas vaginalis cause disease called
Trichomoniasis
62
Trichomonas vaginalis was first observed by ____ in _______
Donne in 1836
63
Most prevalent nonviral sexually transmitted infection
Trichomonas vaginalis
64
Characteristics of Trichomonas vaginalis
- trophozoite stage only - pyriform shape - 4 free anterior flagella and 5th flagellum embedded in the undulating membrane - median axostyle - 1nucleus
65
Strawberry cervix is caused by?
T. vaginalis
66
Motility of T. vaginalis
Jerky tumbling motion
67
Habitat of Chilomastix mesnili
Large intestine
68
Stages present in Chilomastix mesnili
Trophozoite and cyst stage
69
Characteristics of a C. mesnili trophozoite
Pear shaped 3 anterior free flagella and 1 beside the cytostome (shepherd’s crook) Cytostome Spiral groove
70
Boring or corkscrew motion
Chilomastix mesnili
71
American lemon or nipple shape appearance
C. mesnili cyst stage
72
MOT of C. mesnili
Ingestion
73
4 morphological forms of B. Hominis
``` Vacuolated (most predominant) Amoeba-like Granular Multiple fission Additional: cyst and avacuolar ```
74
Wenyon 1909
First discovered Dientamoeba fragilis
75
Formerly classified as an amoeba now an ameboflagellate
Dientamoeba fragilis
76
Dientamoeba fragilis has a trophozoite and cyst stage. T or F
False, it has no cyst stage
77
Habitat of D. fragilis
Colon
78
Rosette shaped nuclei
D. fragilis
79
D. fragilis coexist with
Enterobius vermicularis
80
Treatment for D. fragilis
Iodoquinole
81
Only pathogenic amoeba
Entamoeba histolytica

Parasitology (2 decks)

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