Parasitology Flashcards

1
Q

What are unicellular eukaryotes?

A

free living parasitic pathogens

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2
Q

what is another name for unicellular eukaryotes?

A

protozoa

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3
Q

what is metabolically active form of a protozoa called?

A

trophozoite

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4
Q

whaat is the dormant form of a protoza called and why is the dormant form created?

A

cyst
created when challenged by the immune system

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5
Q

what are cilliates?

A

allow for locomotion

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6
Q

This protozoa has no defined shaped (pseudopodia ‘fake feet’) and are free living

A

amoebae

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7
Q

This amoebae is distributed by poor sanitation and high population density carried by humans

A

Entamoeba histologica

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8
Q

what does amebiasis mean?

A

asymptomatic

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9
Q

Entamoeba histolytica
what is another name for Luminal amebiasis and Amebic dysentery?
What are the characteristics

A

travelers diarrhea
bloody diarrhea and mucus

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10
Q

What does is entamobea histolytica cause?

A

tear drop ulcers in the colon

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11
Q

Entamoeba histolytica
What does invasive extraintestinal amebiasis cause?

A

necrotic lesion at sites of invasion
liver abcesses

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12
Q

What is the treatment for Entamoeba histolytica?

A

hygiene and rehydration
metronidazole (-azole)

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13
Q

What are the two amoebae parasites?

A

Entamoeba histolytica
Naegleria fowleri

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14
Q

Is Naegleria fowleri lethal T/F?

A

True

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15
Q

What amoebae causes direct infection of the nervous tissue through the nostrils and is caused by the inhalation of fresh water?

A

Naegleria fowleri

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16
Q

What diseases does the amobae Naegleria fowleri cause?

A

Primary Amebic Meningoencephalitis (PAM)

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17
Q

What are the sysmptoms of Primary Amebic Meningoencephalitis (PAM)?

A

change in taste and smell
v&n, fever, headache
rapid onset of coma

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18
Q

What how is Naegleria fowleri diagnosed and treated?

A

diagnosis through a spinal tap
treatment by amphotericin B

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19
Q

what are the two flagellates parasites?

A

Giardia
Trichomonas vaginalis

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20
Q

The flagellates is also called “bever fever,” and causes pale, loose ,smelling fatty stools, weight loss, abdominal pain and distention?

A

Giardia (Diarrhea)

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21
Q

What does Giardia come from and how is it spread?

A

untreated water
spread by humans and animals

22
Q

How is Giardia prevented?

A

hygiene
clean water
no pets

23
Q

This apicomplexan called Plasmodium is transmitted by what vector?

24
Q

What disease does Plasmodium cause?

Malaria is has increased susceptibility amongst what populations?

A

Malaria
children and AIDS

25
The cycle of Plasmodium is when P.vivax and P. ovale can remain dormant for years
Liver cycle
26
The cycle of Plasmodium is when it feeds on RBC hemoglobin, causing fever and cause cell to rupture
blood cycle
27
The cycle of Plasmodium is when one ingest sexually active form of RBC that mature in gut
mosquito cycle
28
What are the symptoms of Palasmodium?
fever, chills, diarrhea hemolytic anemia (jaundice, weakness and fatigue)
29
How is Plasmodium Malaria diagnosed?
Blood smear spiking fevers
30
What are the 4 plasmodium species?
P. falciparum P. vivax P. ovale p. malariae
31
This plasmodium species can cause black water fever and cerebral malaria
P. Falciparum
32
This complication of P. Falciparum causes extreme cell lysis, dark urine and kidney failure
black water fever
33
This complication of P. Falciparum causes hemorrhage in the bran form inelastic RBCs
cerebral malaria
34
What are protective conditions of Plasmodia?
sickle cell trait Hemoglobin C Glucose 6 Lack of duffy antigens
35
This apicomplexan, definitive host is a cat and is spread fecal-orally and through inhalation causing toxoplasmosis
toxoplasma gondii
36
This apicomplexan causes spastic paralysis, blindness and brain infection
toxoplasma gondii
37
This apicomplexan is transmitted fecal-oral from drinking water. One is limited to intestines and the other is linked with fruit washed in contaminated water
cryptosporidia and cyclospora
38
This parasite is a microscopic, multicellular eukaryotic worm and complex life cycles
helminthic parasites
39
this type Helminthic host is in larval/immature forms
intermiate hosts
40
this type of Helminthic host come in adult forms and release a large number of eggs
definitive host
41
An increase of eosinophils is an indicator of what kinda of parasitic infestation?
helminthic infestation
42
what are the 3 classification of helminthic parasites>
trematodes (flukes) nematodes (roundworms) cestodes (tapeworms)
43
This helminthic parasite is flat leaf shaped worm and requires snails as intermediates
trematodes
44
this helminthic parasite is a cylindrical tapering worm, transmitted fecal orally or through direct penetration of the skin and is found in human
nematodes
45
This helminth is vector-borne and can result in elephantiasis
wucheria bancrofti
46
This helminth is the most common roundworm infection and is transmitted fecal orally and causes ascariasis
ascaris lumbricoides
47
what are the symptoms of ascariasis
dry cough abdominal pain eosinophilia
48
This helminth is the most common worm in the US and is found in primary school children who may have an itchy bottom, transmitted fecal oral
enterobius vermicularis
49
This helminth is free living in soil and directly penetrates the skin with hooks causing diarrhea, itching, eosinophilia
strongyloides stercoralis
50
The helminth is flat-segmented. Has a scolex (head for attachment; and cuticle for protection and transmitted fecal orally
cestodes (tapeworm)
51
cestodes What is taenia saginata?
beef tape worm
52
cestode what is taenia solium?
pork tape wom