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pathology/histology > Epithelial tissues > Flashcards

Epithelial tissues Flashcards

1
Q

light microscopy

A

based on interactions of light and tissue components

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2
Q

electron microscopy

A

based on interactions of electrons and tissue components

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3
Q

transmission electron microscopy

A

small

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4
Q

scanning electron microscopy

A

extremely small

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5
Q

unaided resolution

A

200 um

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6
Q

light microscopy

A

0.2 um (x1000 magnification)

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7
Q

transmission electron microscopy

A

1 nm (x100,000 magnification)

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8
Q

fixation

A

first step of light microscopy

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9
Q

grossing

A

second step of light microscopy

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10
Q

dehydration

A

third step of light microscopy

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11
Q

embedding

A

fourth step of light microscopy

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12
Q

sectioning

A

fifth step of light microscopy

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13
Q

staining

A

sixth step of light microscopy

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14
Q

hematoxylin

A

purple stain, basophilic, stains negatively charged tissue components (e.g. DNA and RNA)

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15
Q

eosin

A

pink stain, acidophilic, stains positively charged tissue components

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16
Q

Periodic Acid-Shiff

A

reaction used to visualize carbohydrates

17
Q

Epithelium

A

closely associated cells that cover the body or organ’s surface

18
Q

Epithelium functions

A

protection, absorption, secretion, excretion, gas exchange, gliding between inner body surfaces

19
Q

simple layers

A

one layer

20
Q

stratified layers

A

several layers

21
Q

psudostrafied layers

A

one layer that looks like several layers due to different placements of nucleui

22
Q

exocrine

A

secrete via duct system

23
Q

endocrine

A

no duct

24
Q

paracrin

A

unknonw

25
Q

autocrine

A

unknown

pathology/histology (14 decks)

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