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Human Histology > Epithelial tissue > Flashcards

Epithelial tissue Flashcards

1
Q

Lines the internal and covers the external surfaces of the body.

A

Epithelial tissue

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2
Q

Protects the body from abrasion and injury.

A

Epithelial tissue

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3
Q

Absorption of material from a lumen.

A

Epithelial tissue

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4
Q

Transportation of material along a surface.

A

Epithelial tissue

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5
Q

All epithelial tissue lie at the?

A

basement membrane

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6
Q

All epithelial tissues are what?

A

Avascular

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7
Q

All epithelial cells undergo?

A

metaplasia

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8
Q

5 types of Junctional Complexes

A
  1. Occluding or Tight Junctions
  2. Adherent Junction
  3. Desmosome or macula adherens
  4. Hemidesmosomes
  5. Gap or communicating Junctions
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9
Q

Allows movement of materials along the surface.

A

Cilia

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10
Q

The cells of epithelial tissue have three (3) types of surfaces.

A
  1. basal
  2. apical
  3. lateral
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11
Q

2 major characteristics of epithelial tissue divide it into subclasses:

A
  1. the shape of the cells
  2. presence of the layers
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12
Q

3 Shape of Cells of Epithelial Tissue

A
  1. Squamous
  2. Cuboidal
  3. Columnar
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13
Q

2 layers of Epithelial Tissue

A
  1. Simple
  2. Stratified
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14
Q

Distends tissues of urinary tract stretching.

(specialized epithelial tissue)

A

Transitional Epithelium

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15
Q

Makes up the epidermis of skin keratin.

(specialized epithelial tissue)

A

Keratinized Stratified Squamous Epithelium

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16
Q

Found in regions subject to abrasion, for example oral mucosa and vaginal lining control small amount of keratin.

(specialized epithelial tissue)

A

Non - Keratinized Stratified Squamous Epithelium

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17
Q

Lines the inner surface of the trachea not all cell reached apical level single basil/amina.

(specialized epithelial tissue)

A

Pseudostratified Ciliated Columnar Epithelium

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18
Q

Lines the inner surface of blood vessels simple squamous.

(specialized epithelial tissue)

A

Endothelium

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19
Q

Present in the nervous system Central Nervous System; cuboidal or columnar.

(specialized epithelial tissue)

A

Ependymal Cells

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20
Q

8 types of Epithelium

A
  1. Simple Squamous
  2. Simple Cuboidal
  3. Simple Columnar
  4. Stratified Squamous
  5. Stratified Cuboidal
  6. Stratified Columnar
  7. Transitional
  8. Pseudostratified Columnar
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21
Q

Lining of Loop of Henle, Alveoli, Blood
vessels.

(types of epithelium)

A

Simple Squamous

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22
Q

Ducts of the gland, Lining of kidney
tubules.

(types of epithelium)

A

Simple Cuboidal

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23
Q

Uterine tube, Lining of stomach, gall bladder (non-ciliated), Fallopian tube (ciliated), small intestine (w/ microvilli).

(types of epithelium)

A

Simple Columnar

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24
Q

Non-Keratinized: Vagina, Cervix, Mouth,
Esophagus / Keratinized: Skin

(types of epithelium)

A

Stratified squamous

25
Q

Ducts of sweat glands.

(types of epithelium)

A

Stratified Cuboidal

26
Q

Male Urethra

(types of epithelium)

A

Stratified Columnar

27
Q

Urinary bladder, urinary tract

(types of epithelium)

A

Transitional

28
Q

Trachea (ciliated)

(types of epithelium)

A

Pseudostratified Columnar

29
Q

It creates protective boundaries and is involved in the diffusion of ions and molecules.

A

Epithelial tissue

30
Q

It is a highly cellular tissue that overlies body surfaces, lines cavities, and forms glands.

A

Epithelial tissue

31
Q

Are numerous, exist in close apposition to
each other.

A

Epithelial cells

32
Q

Cells are flattened, can be keratinized or nonkeratinized, involved in protection and diffusion, found in capillary walls and skin.

A

Squamous

33
Q

Cells are cube shaped, can be found forming tubes in the nephrons of the kidney involved in secretion and absorption.

A

Cuboidal

34
Q

Cells are rectangular, cilia are often present, involved in absorption, secretion, protection, and lubrication, form the inner lining of the gut tube

A

Columnar

35
Q

The thinness of these cells facilitates the transfer of materials across the epithelium. — Human Alveoli

[types of epithelium]

A

Simple Squamous

36
Q

This epithelium is often associated with absorption, secretion, or excretion of waste matter. — Kidney tubules

[types of epithelium]

A

Simple Cuboidal

37
Q

This epithelium is often associated with absorption or secretion. — Small intestines

[types of epithelium]

A

Simple Columnar

38
Q

It has multiple layers of cells becoming flattened as they move from the basal layer to the apical layers. It provides protection from abrasion and is keratinized on the external surface of the body.

[types of epithelium]

A

Stratified Squamous

39
Q

Limited distribution - found in the lining of larger ducts. — Salivary gland

[types of epithelium]

A

Stratified Cuboidal

40
Q

It is adapted for extensibility and is restricted to the urinary tract. It has multiple layers of cells with an outermost layer of much larger, dome-shaped cells (umbrella cells) that change shape during contraction and distention. — Urinary bladder

[types of epithelium]

A

Transitional

41
Q

It appears to be stratified because the nuclei of the epithelial cells are at different levels. However, every cell is in contact with the basement membrane, but not all cells reach the lumen. — Trachea

[types of epithelium]

A

Pseudostratified Columnar

42
Q

Faces the lumen or the external environment.

[epithelial surfaces]

A

Apical surface

43
Q

Faces the sides of adjacent cells.

[epithelial surfaces]

A

Lateral surface

44
Q

Attaches to the basement membrane.

[epithelial surfaces]

A

Basal surface

45
Q

These are formed by the down growth of an epithelium into the underlying connective tissue.

A

Glands

46
Q

It separates an epithelium from the underlying connective tissue.

A

Basement membrane

47
Q

Skin protects from sunlight & bacteria & physical damage.

[function]

A

Protection

48
Q

Lining of small intestine, absorbing nutrients into blood.

[function]

A

Absorption

49
Q

Lining of Kidney tubules filtering wastes from blood plasma.

[function]

A

Filtration

50
Q

Different glands produce perspiration, oil, digestive enzymes and mucus.

[function]

A

Secretion

51
Q

4 Functions of Epithelial tissue

A
  1. Protection
  2. Absorption
  3. Filtration
  4. Secretion
52
Q

Present in sites of Exchange as Nephrons & Lungs.

[types of epithelium]

A

Simple squamous

53
Q

Protects the body from abrasion and injury.

[organ]

A

Skin Esophagus

54
Q

Absorption of material from a lumen.

[organ]

A

Tubules in kidney
Small and Large Intestines

55
Q

Transportation of material along a surface.

[organ]

A

Cilia-mediated transport in trachea

56
Q

Secretion of mucus, hormones, and proteins.

[organ]

A

Glands

57
Q

Gas exhange

[organ]

A

Alveoli in lung

58
Q

Lubrication between two surfaces.

[organ]

A

Mesothelium of pleural cavity

Human Histology (8 decks)

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