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Histology > Epithelium > Flashcards

Epithelium Flashcards

1
Q

5 types of tissues

A

epithelial, connective, muscle, nervous and specialized tissues

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2
Q

large sheets of cells

A

epithelial tissues

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3
Q

cutaneous membranes (outer)

A

ectoderm

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4
Q

mucuos membrane (inner)

A

endoderm

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5
Q

vessels and open spaces (middle)

A

mesoderm

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6
Q

et lining vessels in the lymphatic and cardiovascular system is called

A

endothelium

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7
Q

et forming the serous membranes lining the true cavities is called

A

mesothelium

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8
Q

highly cellular

A

epithelial

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9
Q

specialized intracellular connections called

A

cell junctions

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10
Q

nutrients enter the tissue by diffusion or absorption

A

avascular

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11
Q

special tissue function

A

protection and secretion

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12
Q

extensions of the apical membrane

A

cilia

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13
Q

cell types

A

squamous, columnar, cuboidal

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14
Q

thin scales, flat

A

squamous cells

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15
Q

square like/cube-like

A

cuboidal cells

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16
Q

longer than wide, rectangular

A

columnar cells

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17
Q

single layer of flat cells resembling scales of fish

A

simple squamous epithelium

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18
Q

tissue classification based on cell shape

A

squamous, cuboidal, columnar epithelial tissue

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19
Q

tissue classification based on cell layers

A

simple and stratified epithelial tissues

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20
Q

compose of one layer

A

simple epithelial tissues

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21
Q

made up of two or more layers

A

stratified epithelial tissues

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22
Q

tissue classification based on cell type and cell layer

A

simple and stratified epithelial tissues

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23
Q

simple epithelial tissues

A

simple squamous, simple cuboidal, simple columnar

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24
Q

location of simple squamous epithelium

A

pulmonary alveoli, Bowman’s capsule, loop of Henle, endothelium of blood and lymphatic vessels, mesothelium

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25
Q

function of simple squamous epithelium

A

lines blood vessel

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26
Q

single layer of cube-shaped cells with large, central nuclei

A

simple cuboidal epithelium

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27
Q

function of simple cuboidal epithelium

A

secretion and absorption

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28
Q

location of simple cuboidal epithelium

A

thyroid follicles, kidney tubules, glands and their ducts

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29
Q

single layer of tall cells with round to oval nuclei

A

simple columnar epithelium

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30
Q

function of simple columnar epithelium

A

absorption and secretion

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31
Q

location of simple columnar epithelium

A

non-ciliated type lines most of the digestive tract

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32
Q

stratified epithelial tissues

A

stratified squamous, cuboidal and columnar

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33
Q

2 or more layers of cells

A

stratified squamous epithelium

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34
Q

function of stratified squamous epithelium

A

protects underlying tissues in areas subjected to abrasion

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35
Q

location of stratified squamous epithelium

A

nonkeratinized type forms the moist linings of the esophagus, mouth and vagina

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36
Q

typically lines the larger ducts of glands

A

stratified cuboidal epithelium

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37
Q

location of stratified cuboidal epithelium

A

ducts of sweat glands

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38
Q

consists of columnar surface cells

A

stratified columnar epithelium

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39
Q

function of stratified columnar epithelium

A

protection and secretion

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40
Q

location of stratified columar epithelium

A

lining of conjuctiva of eye

41
Q

other types of complex epithelial tissues

A

pseudostratified ciliated and non ciliated epithelial tissue, and transitional epithelial tissue

42
Q

single layer of cells differing heights, some not reaching the free surface

A

pseudostratified columnar epithelium

43
Q

found in the urinary system

A

transitional epithelium

44
Q

one layer of irregularly shaped and differently sized columnar cells

A

pseudostratified columnar epithelium

45
Q

function of pseudostratified columnar epithelium

A

secrete substance, particularly mucus

46
Q

location of pseudostratified columar epithelium

A

non-ciliated types in male’s sperm-carrying ducts

47
Q

cells are connected closely to each other

A

epithelial cell junctions

48
Q

three basic types of connections

A

tight, anchoring, and gap junctions

49
Q

restricts movement of fluids between adjacent cells

A

tight junctions

50
Q

provides strong but flexible connection between epithelial cells

A

anchoring junction

51
Q

types of anchoring junction

A

desmosomes and hemidesmosomes

52
Q

link cells to components in the extracellular matrix

A

hemidosmosomes

53
Q

passageway between membranes of adjacent cells

A

gap junction

54
Q

holds cell by way of cadherin molecules

A

desmosomes

55
Q

why cell adhesion molecules?

A

for epithelial cohesion and mutual recognition

56
Q

boundary between epithelium and underlying connective tissue

A

basal lamina

57
Q

closest to the epithelium

A

lamina lucida

58
Q

central layer

A

lamina densa

59
Q

distal to the epithelium

A

lamina fibroreticularis

60
Q

very long slender processes

A

stereocilia

61
Q

made up of microvilli

A

brush border

62
Q

aka cilia

63
Q

function of kinocilia

A

specialized for transport of fluid over the epithelial surface

64
Q

location of kinocilia

65
Q

function of steriocilia

A

absorption and sensory

66
Q

function of brush border

A

digestive and absorptive capacity of the epithelium

67
Q

longer than cilia

68
Q

location of flagella

A

spermatozoa

69
Q

epithelial cells specialized to perform secretory function

70
Q

elaboration or release of useful intracellular molecules into the surrounding medium

71
Q

elaboration or release of metabolic waste products

72
Q

the mesothelial linings of organs and body cavities

A

serous membranes

73
Q

the moist, inner lining of some organs and body cavities

A

mucous membrane

74
Q

discharge their secretion on internal or external body surfaces

75
Q

release discharge directly into the blood stream or lymph stream

76
Q

glands with both endocrine and exocrine components

A

mixed glands

77
Q

release their secretion either by diffusion or exocytosis

78
Q

part of glandular cell usually the apical portion is discharged with secretion

79
Q

the entire cell is discharged with secretion causing membrane rupture

80
Q

one-celled glands

A

unicellular

81
Q

more than one cell

A

multi-cellular glands

82
Q

high concentration of content usually enzymes and hormones

A

serous glands

83
Q

higher water and mucin contents

A

mucous glands

84
Q

mucous-serous

85
Q

may open directly to the surfaces

A

simple tubular

86
Q

terminal secretory unit

A

simple branched tubular

87
Q

mucous glands of oral active

A

compound tubular

88
Q

terminal secretory unit forms a long coil

A

simple coiled tubular

89
Q

one terminal secretory unit

A

simple alveolar

90
Q

several alveoli

A

simple branched alveolar

91
Q

glands of respiratory tract

A

compound acinar

92
Q

glands associated with the mouth

A

compound tubuloalveolar

93
Q

have large complex terminal secretory inits

A

saccular gland

94
Q

lined by simple squamous and may be supported by myoephitelial cells

A

intralobular duct

95
Q

smallest

A

intercalary duct

96
Q

larger than intercalated duct

A

striated duct

97
Q

lined by simple cubiodal epithelium

A

interlobular duct

98
Q

larger ducts line by simple columnar epithelium

A

lobar ducts

99
Q

largest duct lined by either stratified squamous epithelium

A

primary duct

Histology (10 decks)

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