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Microbiology > Parasitology > Flashcards

Parasitology Flashcards

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Biology 101 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?

A

mosquito

24
Q

What disease does Plasmodium cause?

Malaria is has increased susceptibility amongst what populations?

A

Malaria
children and AIDS

25
Q

The cycle of Plasmodium is when P.vivax and P. ovale can remain dormant for years

A

Liver cycle

26
Q

The cycle of Plasmodium is when it feeds on RBC hemoglobin, causing fever and cause cell to rupture

A

blood cycle

27
Q

The cycle of Plasmodium is when one ingest sexually active form of RBC that mature in gut

A

mosquito cycle

28
Q

What are the symptoms of Palasmodium?

A

fever, chills, diarrhea
hemolytic anemia (jaundice, weakness and fatigue)

29
Q

How is Plasmodium Malaria diagnosed?

A

Blood smear
spiking fevers

30
Q

What are the 4 plasmodium species?

A

P. falciparum
P. vivax
P. ovale
p. malariae

31
Q

This plasmodium species can cause black water fever and cerebral malaria

A

P. Falciparum

32
Q

This complication of P. Falciparum causes extreme cell lysis, dark urine and kidney failure

A

black water fever

33
Q

This complication of P. Falciparum causes hemorrhage in the bran form inelastic RBCs

A

cerebral malaria

34
Q

What are protective conditions of Plasmodia?

A

sickle cell trait
Hemoglobin C
Glucose 6
Lack of duffy antigens

35
Q

This apicomplexan, definitive host is a cat and is spread fecal-orally and through inhalation causing toxoplasmosis

A

toxoplasma gondii

36
Q

This apicomplexan causes spastic paralysis, blindness and brain infection

A

toxoplasma gondii

37
Q

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

A

cryptosporidia and cyclospora

38
Q

This parasite is a microscopic, multicellular eukaryotic worm and complex life cycles

A

helminthic parasites

39
Q

this type Helminthic host is in larval/immature forms

A

intermiate hosts

40
Q

this type of Helminthic host come in adult forms and release a large number of eggs

A

definitive host

41
Q

An increase of eosinophils is an indicator of what kinda of parasitic infestation?

A

helminthic infestation

42
Q

what are the 3 classification of helminthic parasites>

A

trematodes (flukes)
nematodes (roundworms)
cestodes (tapeworms)

43
Q

This helminthic parasite is flat leaf shaped worm and requires snails as intermediates

A

trematodes

44
Q

this helminthic parasite is a cylindrical tapering worm, transmitted fecal orally or through direct penetration of the skin and is found in human

A

nematodes

45
Q

This helminth is vector-borne and can result in elephantiasis

A

wucheria bancrofti

46
Q

This helminth is the most common roundworm infection and is transmitted fecal orally and causes ascariasis

A

ascaris lumbricoides

47
Q

what are the symptoms of ascariasis

A

dry cough
abdominal pain
eosinophilia

48
Q

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

A

enterobius vermicularis

49
Q

This helminth is free living in soil and directly penetrates the skin with hooks causing diarrhea, itching, eosinophilia

A

strongyloides stercoralis

50
Q

The helminth is flat-segmented. Has a scolex (head for attachment; and cuticle for protection and transmitted fecal orally

A

cestodes (tapeworm)

51
Q

cestodes
What is taenia saginata?

A

beef tape worm

52
Q

cestode
what is taenia solium?

A

pork tape wom

Microbiology (7 decks)

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