Final Exam Flashcards
(131 cards)
1
Q
Trypanosoma gambiense vector
A
tsetse fly
1
Q
what does direct development mean
A
rhabditiform directly develops into filariform
2
Q
vector of Leishmania braziliensis
A
sand fly
2
Q
What is the causative agent of bilhariasis
A
any schistosome
3
Q
what protozoan is indicated by pear-shaped troph with jerky motility that is found in urine
A
Trichomonas vaginalis
3
Q
What species of fluke is indicated by being associated with bladder cancer
A
Schistosoma haematobium
3
Q
What is the main use of a permanent stained smear
A
to see protozoan cysts and trophs
3
Q
What is the causative agent of eye worm
A
Loa loa
3
Q
What species prefers retics
A
Plasmodium vivax
4
Q
what protozoan is indicated by sluggish random motility
A
Entamoeba coli
4
Q
causative agent of espundia
A
Leishmania braziliensis
5
Q
Of Wucheria bancrofti and Brugia malaya, which has a higher number of microfilaria in the blood stream
A
Brugia
6
Q
list the two major concentration procedures and the principle of each
A
formalin ether-sedimentation and zinc sulfate-floatation
7
Q
how are most protozoan diseases transmitted?
A
fecal-oral ingestion of cyst
7
Q
what does indirect development mean
A
rhabditiform larvae develops into a free-living adult
9
Q
How can chromomycoses be described?
A
dematiaceous fungi
9
Q
What is the intermediate host of D. latum?
A
freshwater fish
9
Q
What species has split ring forms
A
Plasmodium falciparum
10
Q
How is psittacosis spread
A
aerosol
11
Q
Which virus is indicated by Burkitt’s lymphoma?
A
Epstein Barr
12
Q
What is the causative agent of thread worm
A
Strongyloides stercoralis
13
Q
What species of fluke is indicated by an egg that has prominent shoulders that resembles a light bulb
A
Clonorchis sinensis
14
Q
causes spidemic scalp ringworm
A
Trichophyton tonsurans
15
Q
Brown sclerotic bodies
A
Chromomycoses
15
What preservative is usually used for the trichrome stain
PVA
15
What species has irregular, fimbriated red blood cells?
Plasmodium ovale
16
What is cutaneous larval migrans also called
creeping eruption
18
thick-wall barrel-shaped arthrospores
Coccidioides
19
causes phycomycoses
mucor or rhizopus
19
What is cutaneous larval migrans caused by
Ancylostoma braziliense
20
How are infections due to hookworm and threadworm usually acquired
penetration of skin by filariform larvae
21
Of nematodes and trematodes, which alternates between free-living and parasitic
nematodes
21
What is the infective stage of Ascaris lumbricoides
embryonated egg
23
Examples of asexual spores
arthrospores, blastospores, and chlamydospores
23
what protozoan is indicated by lacking a cyst form
Dientamoeba fragilis, Trichomonas vaginalis, Entamoeba gingivalis
23
What are spicules
associated in nematode with ejaculatory duct
24
What is the infective stage of Echinococcus granulosus
egg
25
causative agent of Kala-azar
Leishmania donovani
26
What is the common name of Trichuris trichiuria
whipworm
26
what parasite often causes pneumonitis in children
Ascaris
27
What is the common name of Trichinella spiralis
pork tapeworm
27
what is the causative agent of blackwater fever
Plasmodium falciparum
28
Examples of sexual spores
ascospore, basidiospore, zygospore
29
What is the infective stage of Taenia solium
cysticercus
30
What is the infective stage of Taenia saginata
cysticercus
30
What type of specimen is needed to diagnose Onchocerca volvulus
skin
32
Define reservoir host
animals other than man that can harbor a disease
32
Of nematodes and trematodes, which is completely parasitic
trematodes
34
mastigophoran means of motility
flagella
35
What species of fluke is indicated by having ova often confused with D. latum?
Paragonimus westermani
36
What is the infective stage of D. latum
plerocercoid
37
what protozoan is indicated by fine, even peripheral chromatin
Entamoeba histolytica
38
Brown, gritty deposits in sputum
Aspergillus
39
List several environmental or climatic factors which are important in the spread and/or prevention of parasitic infections
temperature, sand, soil, controlling insect population, water filtration
40
What is the intermediate host of Onchocerca volvulus
simulium fly
41
causative agent of rocky mountain spotted fever
Rickettsia rickettsii
42
what protozoan is indicated by large glycogen vacuole stains deeply with iodine
Iodamoeba bütschlii
43
What virus is indicated by large, red intranuclear inclusions
CMV
44
What is the causative agent of guinea worm
Dracunculus medinensis
46
thick-walled, broad-based yeast
Blastomycoses
48
vector of Leishmania tropica
tsetse fly
48
What is another name for the simulium fly
black fly
49
How do rickettsia differ from chlamydia
rickettsia needs an arthropod vector
50
What is the infective stage of Trichinella spiralis
encysted larvae in muscle
52
What virus is indicated by infectious mono
Epstein-Barr
53
What is the common name of Necator americanus
hookworm
55
thin-walled, club-shaped macroconidia in clusters
Epidermophyton
56
Is the egg of Taenia solium infective for man?
yes
57
What is the diagnostic stage of Echinococcus granulosus
hydatid cyst found in man
58
what protozoan is indicated by oval cyst that has large, blot-like karyosome
Endolimax nana
59
How can Hymenolepsis nana and Hymenolepsis dominate be differentiated?
H. dimunata eggs are large and have no polar filaments
61
spherules filled with endspores
Coccidioides
62
What virus is indicated by Negri bodies
rabies
64
What is the intermediate host of Taenia solium
pig
64
What is the definitive host of Echinococcus granulosus
intestines of canines
65
spin tuberculate macroconidia
Histoplasma
66
What is the first intermediate host of all human flukes
snails
66
What are some distinctive features of filarial worms
female gives birth to live larvae, have periodicity, some have sheath derived from egg shell
68
vector of Trypanosoma cruzii
kissing bug
69
If negative results were obtained using the zinc sulfate method, what would be the best course to follow if the doctor still felt the patient had a parasitic disease?
repeat using formalin ether
70
What is the specific gravity of the solution employed in the floatation method
1.18
71
What does auto infection mean
person infects themselves
72
What is a proglottid
individual segments of a tapeworm
74
ciliate means of motility
cilia
76
thick-walled, spindle shaped macroconidia
microsporum
77
causative agent of oriental sore, Baghdad/New Delhi boil
Leishmania tropica
78
sarcodina means of motility
pseudopods
80
what is a hydatid cyst
tapeworm larvae of Echinococcus granulosis
81
colony has a red reverse
Trichophyton rubrum
82
What is the infective stage of Stongyloides stercoralis
filariform larvae
83
If an ova and parasite exam cannot be performed right away, what procedure should be followed?
perform quick macro and micro exam, add preservative and refrigerate within 30 minutes
85
causative agent of Chagas disease
Trypanosoma cruzii
86
What is the common name of Ascaris lumbricoides
round worm
87
What is the causative agent of whipworm
Trichuris trichiura
88
Multiple buds in tissue
Paracoccidioides
89
List several species of parasites which can be transmitted by contaminated drinking water
Entamoeba histolytica, all schistosomes, not hookworms
91
what protozoan is indicated by a troph that is bilaterally symmetrical?
Giardia lamblia
92
What is a stroblia
general term for entire tapeworm
93
What is the infective stage of Hymenolepsis dimunata
cystercercoid
94
Which species exist in the Leishmania form in human cells?
All Leishmania and Trypanosoma cruzii
95
mode of transmission of rocky mountain spotted fever
deer tick
97
sporozoa means of motility
non motile
99
Broad, non-septate hyphae in tissue
Mucor Rhizopus
100
What species of fluke is indicated by having ova that can appear in the stool or sputum
Paragonimus westermani
101
Is the egg of Taenia saginata infective for man
no
102
Which organism is known as the dwarf tapeworm
Hymenolepsis nana
103
what is visceral larval migrants caused by
Toxocara canis
104
What is the infective stage of Enterobius vermicularis
embryonated egg
105
What is the intermediate host of Taenia saginata?
cow
106
Of nematodes and trematodes, which has a more simple life style
nematodes
107
What is the infective stage of Hymenolepsis nana
fully embryonated egg
108
What morphological form of the blood and tissue flagellates is intracellular?
Leishmania forms
109
What species has 9 merozoites
Plasmodium malariae
111
What is the common name of Enterobius vermicularis
pinworm
112
What is the infective stage of Necator americanus
filariform larvae
114
What is a neck
narrowest part of the tapeworm located just behind the scolex
116
What is a scolex
organ for attachment
117
causative agent of west african sleeping sickness
Trypanosoma gambiense
118
vector of Leishmania donovani
sand fly
119
What is the common name of Strongyloides stercoralis
threadworm
120
What is the infective stage of Trichuris trichiuria
embryonated egg
121
Define definitive host
host in which sexual or adult stage or life cycle occurs
122
What is a rostellum
fleshy extension of scolex that has one or two rows of hooks
123
what protozoan is indicated by a cyst that is lemon-shaped with "nipple" on end?
Chilomastix mesnili
124
what diseases are caused by chlamydia
psittacosis
125
produces germ tube
Candida
127
What virus is indicated by shingles
Varicella-Zoster
128
What species of fluke is indicated by being the largest fluke found in man
Fasciolopsis buski
129
Define intermediate host
host in which the larval or asexual stage of life cycle occurs
130
What species of fluke is indicated by being a usual parasite of sheep that has an extremely large egg?
Fasciola hepatica
131
In which two parasitic infections is autoinfecton most common
Pin worm and strongyloides
