Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Med Micro Boards > Parasites > Flashcards

Parasites Flashcards

1
Q

what are the two different classifications of parasites

A

protozoa

metazoa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is a protozoa

what is a metazoa

A

unicellular animal like parasites

helminths or multicellular parasites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the 3 different types of protozoa

characteristics of each type

A

amoebae - motile by pseudopodia

flagellate - motile by flagella

sporozoa - non motile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the 3 different types of metazoa

characteristics of each type

A

nematodes - round worms

trematodes - flat worms or flukes

cestodes - flat or tape worms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what groups of parasites are considered flat worms or platyhelminthes

A

trematodes (flukes) and cestodes (tape worms)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what group of parasites are considered to be nemathelminthes

A

nematodes (round worms)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the only amoeba we talk about and what disease does it cause

A

entamoeba histolytica

amoebiasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what two forms does entamoeba histolytica exist as

whats the difference

A

trophozoites - active and motile - irregular shape with pseudopodia

cysts - resistant and nonmotile - spherical shape with 4 nuclei and mass of glycogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

when a cyst forms a trophozoite, what is this called?

when a trophozoite forms a cyst, what is this called?

A

excystation

encystation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

how does entamoeba histolytica infection occur

A

ingestion of mature cysts in fecal contaminated water, food, hands, insects

cysts will convert to trophozoites via excystation and then multiply producing more cysts and trophozoites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the infective form of entamoeba histolytica

A

cysts are the infective form

NOT trophozoites (which are responsible for pathogenicity)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what is the life cycle of entamoeba histolytica

A

ingest cyst (infective form) in contaminated food or water

cysts go to small intestine where excystation occurs
(cyst –> trophozoite)

trophozoites migrate to large intestine where they multiply by binary fission and produce cysts via encystation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the cause of amebiasis

what are the symptoms

A

entamoeba histolytica

bloody diarrhea

will end up leading to liver abscess and RUQ pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what are the flagellate parasites

A

trichomonas vaginalis

giardia lambiia

trypanosmoma

leishmania

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what are the sporozoa parasites

A

cryptosporidium

toxoplasma gondii

plasmodium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what parasite causes vaginitis

A

trichomonas vaginalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

trichomonas vaginalis causes

A 
vaginitis 
foul smelling*
green discharge*
itching 
burning
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

how is trichomonas vaginalis transmitted

A

sex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what parasite causes hikers diarrhea

A

giardia lambiia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what disease does giardia lambiia cause

symptoms

A

hiker diarrhea or giardiasis

bloating
flatulence
foul smelling diarrhea
fatty mucousy diarrhea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what parasite causes bloating, flatulence, and foul smelling diarrhea

A

giardia lambiia

contain 4 pairs of flagella

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

how is giardia lambiia transmitted

A

cysts in water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what are the different types of trypansoma

A

trypansoma

  • cruzi
  • gambiense
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is the parasite that causes chagas disease

A

trypansoma cruzi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is the vector or insect that causes trypansoma cruzi/chagas disease

A

kissing reduviid sand fly or bug

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

what is the parasite that causes african sleeping sickness

A

trypansoma gambiense

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what is the vector or insect that causes trypansoma gambiense/african sleeping sickness

A

tsetse fly bite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

what organ does chagas disease affect

A

heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

what parasite causes kala azar

what is this disease also called

A

leishmania donovani

black fever

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

what is the vector or insect that transmit leishmania donovani

A

sandfly bite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

what are the different types of sporozoa

A

cryptosporidium

toxoplasma gondii

plasmodium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

what is also known as beaver fever

A

giardiasis

  • hikers diarrhea from drinking stagnant stream water
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

what are the symptoms of kala azar or black fever

A

viscerotropic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

what parasite causes severe diarrhea in AIDS patients and mild disease in non HIV (watery diarrhea)

A

cryptosporidium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

how is cryptosporidium transmitted

A

cysts in water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

what parasite causes toxoplasmosis

A

toxoplasma gondii

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

what parasite causes miscarriages in first trimester and birth defects

A

taxoplasma gondii

38
Q

what parasite is transmitted via cat feces or uncooked meat

A

toxoplasma gondii

39
Q

how is toxoplasma gondii transmitted

A

cat feces or undercooked meat

40
Q

what parasite is most common form of malaria

what is the most deadly or fatal form

A

MC - plasmodium vivax

MD - plasmodium falciparum

41
Q

what form of malaria can cause black water fever

A

plasmodim falciparum

most fatal form of malaria

42
Q

what parasite causes malaria

A

plasmodium

43
Q

what is the vector for plasmodium vivax

A

female anopheles mosquito bite

most common form of malaria

injects sporozoites into human blood which then multiply as merozoites inside RBCs

44
Q

where does malaria parasite replication take place

A

replicates in RBCs

45
Q

what are the symptoms of malaria

A

anemia - affects RBCs

chronic splenomegaly

46
Q

what is the infective stage of malaria

A

sporozoites

47
Q

what stage of malaria occurs where is spreads throughout body and creates pathogenicity

48
Q

what is the infective form of giardiasis

49
Q

what are the different types of nematodes

A

ascaris lumbricoides

necator americanus

enterobius vermicularis

stronglyoides stercoralis

trichuris trichuria

trichinella spiralis

onchocerca volvulus

wuchereria bancrofti

loa loa - eye worms

50
Q

what is the plasmodium associated with convulsions

A

plasmodium falciparum

51
Q

ascaris lumbricoides is what kind of nematode

A

round worm

52
Q

necator americanus is what kind of nematode

53
Q

enterobius vermicularis is what kind of nematode

54
Q

strongyloides stercoralis is what kind of nematode

A

threadworm

55
Q

trichuris trichura is what kind of nematode

56
Q

trichinella spiralis is what kind of nematode

A

pork roundworm

57
Q

what is the vector that carries onchocerca volvulus

A

simulium blackfly bite

58
Q

what nematode causes river blindness

A

onchocerca volvulus

59
Q

what vector causes river blindness

A

simulinium blackfly bite

via onchocerca volvulus

60
Q

what nematode causes elephantiasis

A

wuchereria bancrofti

61
Q

what vector causes elephantiasis

A

aedes aegypti mosqutio

via wuchereria bancrofti

62
Q

what vector carries the nematode wuchereria bancrofti

A

aedes aegypti mosquito

63
Q

what nematode causes eye worms

64
Q

what vector carries the nematode loa loa

A

mango or chrysops fly bite

65
Q

what nematode is carried by the mango or chrysops fly

66
Q

where is loa loa commonly found

A

west central africa

67
Q

which parasite is associated with filarial worms

A

wuchereria bancrofti

causes elephantiasis

68
Q

inverted flask shaped ulcers of large intestine are associated with what parasite

A

entamoeba histolytica

69
Q

what is the most common roundworm in the US

A

enterobius vermicularis

70
Q

what nematode or roundworm is found in the soil and penetrates the skin of bare feet

A

necator americanus

strongyloides stercoralis

71
Q

what roundworm is transmitted by undercooked meat

A

trichinella spiralis - pork worm

not taenia because thats a tapeworm

72
Q

what parasite is caused by infected freshwater that penetrates skin while swimming or standing in water

what is the intermediate host

A

schistosoma

snails

73
Q

what are the different types of trematodes

A

schistosoma

clonorchis sinsensis

paragonimus westermani

74
Q

what organs are mainly affected by

schistosoma hematobium -

schistosoma mansoni -

schsitosoma japonicum -

A

bladder

liver

gut

75
Q

chinese liver fluke is another name for

A

clonorchis sinsensis

76
Q

how is clonorchis sinsensis or chinese liver fluke transmitted to humans

A

ingestion of raw undercooked, raw, smoked, pickled freshwater fish

77
Q

what roundworm is transmitted by ingestion of contaminated food or water with feces

A

ascaris lumbricoides

78
Q

what tapeworm is acquired after eating undercooked pork

A

taenia solium

79
Q

what roundworm is acquired after eating undercooked pork

A

trichinella spiralis

80
Q

what is a tape worm associated with anemia (B12 to be specific)

A

diphyllobothrium

81
Q

what cestode or tape worm is found in beef

A

taenia saginata

82
Q

what cestode or tape worm is found in pork

A

taenia solium

83
Q

what cestode is the largest fish tapeworm and located in fish of canada and alaska

A

diphyllobothrium

84
Q

what parasite is the smallest and is considered the dwarf tapeworm

A

hymenolepis nana

85
Q

what are the cestodes or tapeworms

A

taenia

diphyllobothrium

hymenolepis nana

echinococcus granulosus

86
Q

what cestode causes hydatid disease because it contains hydatid cysts

A

echinococcus granulosus

87
Q

where do tapeworms reside

A

small intestine

88
Q

what parasite is associated with sheep raising areas and could be related to contact with contaminated dog/canine feces

A

echinococcus granulosus

89
Q

what is a chlorine resistant cyst

A

crytosporidium parvum

90
Q

what is scotch tape test for

A

enterobious vermicularis

91
Q

walking on a beach

A

nector americanus

Med Micro Boards (35 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions