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PARASITOLOGY > Chapter 5: Review Questions > Flashcards

Chapter 5: Review Questions Flashcards

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0
Q

An amebae that has a chromatoid bodies in the cyst stage

A

Entamoeba

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1
Q

The motile, reproducing stage, feeding stage of the Protozoa

A

Trophozoites

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2
Q

Amebiasis is caused by?

A

E. histolytica

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3
Q

Which organ of the body is most often involved in extra intestinal amebiasis?

A

Liver

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4
Q

Amebae that inhabits the gastrointestinal tract of man are nonmotile, no feeding and in infective stage

A

Cyst

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5
Q

Mature cyst of E. polecki have how many nuclei?

A

1

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6
Q

Has cyst with chromatoid bodies that have two pointed ends or that can be round, triangular or oval?

A

E. coli

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7
Q

Is likely to ingest red blood cell?

A

E. histolytica

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8
Q

The mature cyst of Entamoeba histolytica has how many nuclei?

A

Four (4)

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9
Q

Failure to find bacteria in purulent spinal fluid should alert one to find the possibility of an infection with?

A

Amebae

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10
Q

Trophozoite of achromatic granules surrounding its karyosomal chromatin?

A

I. butschilii

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11
Q

Double walled, wrinkled cyst form

A

A. Castellanii

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12
Q

A cyst that possesses a single nucleus and a large glycogen vacuole that stains deeply with iodine belong to?

A

I. butachilii

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13
Q

Some amebae have spiny, hyaline extensions called:

A

Acanthopods

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14
Q

Best staining procedure for species of naegleria and Acanthamoeba?

A

Hematoxylin and Eosin and Wright stain

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15
Q

Amebae inhabiting the central nervous system enter the body through the?

A

Nasal mucosa

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16
Q

The trophozoites whose karyosomal chromatin appears as a rosette of 4-6 granules is identified as:

A

N. fowleri

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17
Q

Usually mistaken as a cyst of amebae?

A

Blastocystis hominis

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18
Q

Instetinal flagellates are usually which shape in the trophozoites stage?

A

Pear-shaped

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19
Q

Is pathognomic for G. lamblia and the stage it is found in?

A

Ventral sucking disk-trophozoites

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20
Q

A flagellate that Can be pathogen in small intestine

A

G. lamblia

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21
Q

Intestinal flagellate trophozoite has a sucking disc, 2 nuclei, 8 flagella and an axostyle

A

G. lamblia

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22
Q

Red and white blood cells in stool specimen are characteristics of :

A

Bacillary dysentery

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23
Q

A pear-shaped flagellate with jerky motility is found in a urine specimen identified as:

A

T. vaginalis

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24
The only bilaterally symmetrical protozoan is?
G. lamblia
25
Which of the following is the intracellular form of blood and tissue flagellates
Trypanosomal
26
Cause of African sleeping sickness
Trypanosoma
27
The vector of African sleeping sickness
Tsetse fly (Glossina)
28
Specie of trypanosoma that cause Chagas' disease
Cruzi
29
How is trypanosoma cruzi transmitted?
Bite of reduviid bug
30
A chagoma is a lesion seen in infections with:
Trypanosoma cruzi
31
Organism that cause kala-azar
L. donovani
32
Is the only ciliates that is pathogenic in humans?
Isospora
33
Nucleus in trophozoite of Balantidum coli is the reproductive one?
Micronucleus
34
The definitive host of plasmodium
Female (Anopheles Mosquito)
35
Malarial organisms present as pale, very ameboid ring trophozoite, infecting a large pale red blood cell with dots of hgb
P. vivax
36
Malarial organism preferentially invades reticulocytes
P. vivax
37
Schizont resembles as "fruit pie" in which meron outer form a rosette around the malarial pigment
P. malariae
38
Band from trophozoite stretching across the red blood cell
P. malariae
39
Ziemanns stippling
Malariae
40
Maurer's dot
Falciparum
41
Malarial org. features ring trophozoite that have double chromatin dots, appliqué form often have multiple parasites in the infected red blood cell
P. ovale
42
Coarse red dots with large place red cell with frimbriated edges
P. ovale
43
The sexual reproduction cycle in plasmodium and coccidia is referred to as
Sporogony
44
Infective stage of malarial parasites to the vector
Gametocyte
45
Infective stage of malarial parasites to the human
Sporozoites
46
Synchronized rupture of the red cells in every 72 hours
Malariae
47
What stage of Isospora is infective to humans
Oocyts
48
Isospora belli immature oocyts contains
Sporoblast
49
Definitive and intermediate host of Toxoplasma gondii
Cat
50
Appearance of Toxoplasma gondii in tissue fluids of man
Crescent
51
Example of test for Cryptosporidium
Sheather's sugar floatation
52
Parasite that is associated with AIDS
Cryptosporidium
53
Schistosome eggs that maybe recovered in rectal biopsy
S. mansoni and S. japonicum
54
The scientific name of the head of a tapeworm
Scolex
55
Worms that have an oral and ventral suckers in the adult stage
Trematodes
56
First intermediate host of the flukes
Snails
57
Common names for schistosomes
Blood flukes
58
What is schistosomule
Cercaria minus tail
59
A hexacant embryo enclosed in a radially striated shell belongs to the genus
Taenia
60
Tapeworm infection has to be treated with great care so that man doesn't not acquire the larval infection
Taeniasis solium
61
A bile stained eggs that is 75 microns as it's greater diameter and contains a hexacant embryo that lacks polar knobs
H. diminuta
62
Hydatid cyst infection if man is due to a larva of the tapeworm
E.granulosus
63
First intermediate host of D. latum
Copepod
64
Second intermediate host of D. latum
Fresh water fish
65
What is the infective stage of the broad fish tapeworms to human
Plerocercoid
66
Eggs that are bile stained and have clear polar plugs belongs to
Whipworm
67
Unholy triad
T. trichiura, Hookworm and Ascaris lumbricoides
68
First stage of intestinal nematode
Rhabditiform larva
69
A roundworm that inhabits the small intestines and is usually demonstrated as rhabditiform larvae in the fecal specimen
Threadworm
70
Dirofilaria immitis is the
Dog heartworm
71
Body of tapeworm
Strobila
72
When stained with trichome stain, chromatoid bodies appear what color
Bright to red
73
Specific gravity of zinc sulfate
1.8 SG
74
Venipuncture blood is not recommended for
Malaria, Babesia , hemoflagellates

PARASITOLOGY (5 decks)

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