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Class 215 > Lab 19 > Flashcards

Lab 19 Flashcards

1
Q

What are you looking at

A

The cyst of a entamoeba histolytica in a fecal smear

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2
Q

What are you looking at

A

Trypanosoma gambiense in a blood smear

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3
Q

What are you looking at

A

Trichomonas vaginalis in vaginal discharge

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4
Q

What are you looking at

A

Balantidium coli in a fecal smear

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5
Q

What are you looking at

A

Giardia lamblia in a fecal smear

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6
Q

How it Entamoeba histolytica transmitted and diagnosed

A

T:fecal oral route
D: by microscopically looking for cysts

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7
Q

What is a characteristic of Entamoeba histolytica

A

One or more nuclei

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8
Q

What illness does Entamoeba histolytica cause

A

intestinal amebiasis

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9
Q

How is Trypanosoma gambiense transmitted and diagnosed

A

T: bite of an infected tsetse fly
D: microscopically looking for Trypanosoma in the blood

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10
Q

What illness does Trypanosoma gambiense cause

A

African sleep sickness

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11
Q

What is a characteristic of Trypanosoma gambiense

A

nucleus, flagellum, and undulating membrane

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12
Q

How is Trichomonas vaginalis
transmitted and diagnosed

A

T: venereal contact
D: microscopically looking for T. vaginalis trophozoites

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13
Q

What illness does Trichomonas vaginalis cause

A

Genitourinary trichomoniasis

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14
Q

What is a characteristic of Trichomonas vaginalis

A

large nucleus, flagella, and undulating membrane.

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15
Q

How is Giardia lamblia transmitted and diagnosed

A

T: fécal oral route
D: microscopically looking for cysts of G. lamblia

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16
Q

What illness does Giardia lamblia cause

A

giardiasis

17
Q

What is a characteristic of giardia lamblia

A

two nuclei resembling “eyes.”

18
Q

How is Balantidium coli diagnosed and transmitted. What illness does it cause

A

T: fécal oral route
D: by microscopically looking for B. coli
ill: balantidiasis

19
Q

What are characteristics of Balantidium coli

A

large “dumbell-shaped” macronucleus

20
Q

Basic characteristic of a nematode

A

elongated, unsegmented, cylindrical worms having separate sexes

21
Q

Basic characteristic of a cestode

A

flat segmented worms

22
Q

Basic characteristic of a fluke

A

unsegmented, flat, leaf-shaped worms

23
Q

Basic characteristic of a proglottids

A

rectangular shape with a single, lateral genital pore

24
Q

Basic characteristic of a scolex

A

4 suckers and the rostellum has no hooks

25
Q

Basic characteristic of ova

A

a central nucleus that contains the female’s genetic material

26
Q

Basic characteristic of a cysts

A

an abnormal pocket of fluid, like a blister

27
Q

What are nematodes

A

Roundworms

28
Q

What are cestodes

A

Tapeworms, body is made up of segments called proglottids

29
Q

What are scolex

A

Head of a tapeworm

30
Q

What are proglottids

A

The body segments of a tape worm

31
Q

What are flukes

A

Trematodes

32
Q

What are ova

A

Eggs produced by parasitic worms like nematodes, cestodes, and flukes

33
Q

What are cysts

A

Dormant protective form of parasites like protozoa or worms

34
Q

What color do gram negative bacteria stain under a microscope . Define their cell wall

A

Red or pink. Thin peptidoglycan cell wall

35
Q

What color do gram positive bacteria stain under a microscope. Define their cell wall

A

Stain purple and have a thick peptidoglycan cell wall

36
Q

What is the purpose of gram staining

A

Grouping bacteria by color and shape to help determine which kind of bacteria is causing your infection

37
Q

What is the purpose of a gram stain

A

a test that checks to see if you have a bacterial infection. A sample is taken from the site of a suspected infection, such as your throat, lungs, genitals, or a skin wound. Gram stains may also be used to check for bacteria in certain body fluids, such as blood or urine.

Class 215 (6 decks)

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