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Epithelial > Epithelial Tissue > Flashcards

Epithelial Tissue Flashcards

1
Q

Epi

A

Sit on top of something

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2
Q

Where is the epithelial tissue located?

A

It sits on top of other tissues and forms outer layer.

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3
Q

Epithelial tissue can also be found where? (Other then the outer layer)

A

The lining of hollow organs

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4
Q

True or false?

Always free top and apex

A

True

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5
Q

Cellularity?

A

Tightly packed cells

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6
Q

True or false

Avascular with nerve endings

A

True

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7
Q

Innervation characteristic

A

supplied with nerves

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8
Q

Regenerative characteristic

A

Replaced frequently

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9
Q

The cleaners, sweepers, and absorbers

A

Cilia and microvilli

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10
Q

Squamos

A

Flat(squashed)

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11
Q

Cuboidal

A

Cube-shaped

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12
Q

Columnar

A

Column-like(oval shaped nuclei sit at bottom and is easy to ID)

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13
Q

Transitional

A

Stretchy and variably shaped

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14
Q

Simple(layer type)

A

Single layer all the same type

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15
Q

Stratified(layer type)

A

Lots of layers; named by type of cell on outer layer

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16
Q

Simple squamos

A

Structure-single layer of thin flat cells
Function-diffusion(very thin/permeable, very slick)
Location-inside of blood vessels, inside of heart, lines walls of capillaries, feeds tissue, and alveoli(air sacs of lungs)

17
Q

Simple cuboidal

A

Structure-single layer of subs-shaped cells w/ central nuclei
Function-secretion(glands) and absorption(places w/ microvilli)
Location-kidney tubes, ducts of some glands(salivary, thyroid, pancreas, liver), absorption, gland excretion

18
Q

Endocrine(gland type)

A

Makes product inside and secretes into matrix

  • capillaries come inside gland and pick up the product
  • product=ALWAYS HORMONE
19
Q

Exocrine(gland type)

A

Gland secretes its products outside itself using a duct

-Ex. Saliva, mucous, sweat, enzymes, oil/wax, reproductive fluids, milk

20
Q

Histology

A

Study of tissue

21
Q

Cells are anchored with…

A

Desmosomes and tight junctions

22
Q

Simple columnar

A

Structure-long cells, nuclei at bottom, microvilli & cilia
Function- absorber, cilia helps move things
Location-uterus, Fallopian tubes, stomach, intestines

23
Q

Pseudo stratified columnar

A

Structure-looks like one layer but not, nuclei not all on bottom, have cilia and goblet cells
Function-sweeps debris out of lungs goblet cells produce mucin, histamine released by WBCs
Location-upper respiratory tract(bronchi, trachea, bronchioles)

24
Q

Stratified squamous

A

Structure-flattened multiple laters of cells
Function-body’s wear and tear tissue, takes friction and exposure
Structure-outer layer of skin, lines mouth, throat, vagina, and anal canal

25
Q

Melanocytes

A

Give people their pigment, and people can varying amounts

26
Q

Keratin

A

Tough protective and waterproof protein

27
Q

Epithelial sits on what type of tissue?

A

Connective tissue

28
Q

3 types of carcinoma?

A

Basal cell:least severe and most common

Squamous cell

Malignant melanoma:deadly and least common

29
Q

What does the ABCD method stand for in mole observation?

A

A-asymmetry

B-boarder

C-color

D-diameter

30
Q

1st degree burn

A

Top of epidermis burned
Signs and symptoms: painful, red, no blisters
Heals in 3-7 days
Treatment: cool and compress, aloe Vera

31
Q

2nd degree burn

A

Epidermis and part of dermis burned
S&S: painful, red, blister, pealing and dead skin days later
Heals in 7-10 days depending on depth
Treatment: cool compress, aloe Vera, do not break blisters

32
Q

3rd degree burn

A

Epidermis and dermis burned entirely
S&S: no pain, nerve endings burned, oozing and skin slippage, whitish or grayish color
Heals in months to a year depending on location and % burned
Treatment: rule of nines

33
Q

Stratified cuboidal

A

Structure- 2 or 3 layers of cuboidal cells lining opening of larger glands
Function- greater protection and secretor
Location- mammary glands, sweat glands(larger glands)

34
Q

Stratified columnar

A

Structure- several layers of columnar cells
Location- male reproductive, pharynx, distal esophagus, cardiac sphincter, can be replaced by stratified squamous, constantly being damaged by acid reflux

35
Q

Transitional

A

Designed to distend and return to normal size
Lining of urinary bladder
Transitions from cuboidal to squamous as bladder fills

36
Q

Cutaneous membrane

A

Functions like tarp over boat

Example: skin

37
Q

Mucous membrane

A

Lines openings to outside(digestive tract, respiratory, urinary, reproductive)
Contains specialized cells that produce mucus

38
Q

Serous membrane

A

2 layered membrane with potential space between

  • parietal: lines walls of cavities
  • visceral: wraps around organs and both produce serous fluid which reduces friction between tissues and organs

Epithelial (1 decks)

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