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Histology > Epithelium > Flashcards

Epithelium Flashcards

(99 cards)

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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
function of simple squamous epithelium
lines blood vessel
26
single layer of cube-shaped cells with large, central nuclei
simple cuboidal epithelium
27
function of simple cuboidal epithelium
secretion and absorption
28
location of simple cuboidal epithelium
thyroid follicles, kidney tubules, glands and their ducts
29
single layer of tall cells with round to oval nuclei
simple columnar epithelium
30
function of simple columnar epithelium
absorption and secretion
31
location of simple columnar epithelium
non-ciliated type lines most of the digestive tract
32
stratified epithelial tissues
stratified squamous, cuboidal and columnar
33
2 or more layers of cells
stratified squamous epithelium
34
function of stratified squamous epithelium
protects underlying tissues in areas subjected to abrasion
35
location of stratified squamous epithelium
nonkeratinized type forms the moist linings of the esophagus, mouth and vagina
36
typically lines the larger ducts of glands
stratified cuboidal epithelium
37
location of stratified cuboidal epithelium
ducts of sweat glands
38
consists of columnar surface cells
stratified columnar epithelium
39
function of stratified columnar epithelium
protection and secretion
40
location of stratified columar epithelium
lining of conjuctiva of eye
41
other types of complex epithelial tissues
pseudostratified ciliated and non ciliated epithelial tissue, and transitional epithelial tissue
42
single layer of cells differing heights, some not reaching the free surface
pseudostratified columnar epithelium
43
found in the urinary system
transitional epithelium
44
one layer of irregularly shaped and differently sized columnar cells
pseudostratified columnar epithelium
45
function of pseudostratified columnar epithelium
secrete substance, particularly mucus
46
location of pseudostratified columar epithelium
non-ciliated types in male's sperm-carrying ducts
47
cells are connected closely to each other
epithelial cell junctions
48
three basic types of connections
tight, anchoring, and gap junctions
49
restricts movement of fluids between adjacent cells
tight junctions
50
provides strong but flexible connection between epithelial cells
anchoring junction
51
types of anchoring junction
desmosomes and hemidesmosomes
52
link cells to components in the extracellular matrix
hemidosmosomes
53
passageway between membranes of adjacent cells
gap junction
54
holds cell by way of cadherin molecules
desmosomes
55
why cell adhesion molecules?
for epithelial cohesion and mutual recognition
56
boundary between epithelium and underlying connective tissue
basal lamina
57
closest to the epithelium
lamina lucida
58
central layer
lamina densa
59
distal to the epithelium
lamina fibroreticularis
60
very long slender processes
stereocilia
61
made up of microvilli
brush border
62
aka cilia
kinocilia
63
function of kinocilia
specialized for transport of fluid over the epithelial surface
64
location of kinocilia
trachea
65
function of steriocilia
absorption and sensory
66
function of brush border
digestive and absorptive capacity of the epithelium
67
longer than cilia
flagella
68
location of flagella
spermatozoa
69
epithelial cells specialized to perform secretory function
glands
70
elaboration or release of useful intracellular molecules into the surrounding medium
secretion
71
elaboration or release of metabolic waste products
excretion
72
the mesothelial linings of organs and body cavities
serous membranes
73
the moist, inner lining of some organs and body cavities
mucous membrane
74
discharge their secretion on internal or external body surfaces
exocrine
75
release discharge directly into the blood stream or lymph stream
endocrine
76
glands with both endocrine and exocrine components
mixed glands
77
release their secretion either by diffusion or exocytosis
merocrine
78
part of glandular cell usually the apical portion is discharged with secretion
apocrine
79
the entire cell is discharged with secretion causing membrane rupture
holocrine
80
one-celled glands
unicellular
81
more than one cell
multi-cellular glands
82
high concentration of content usually enzymes and hormones
serous glands
83
higher water and mucin contents
mucous glands
84
mucous-serous
mixed
85
may open directly to the surfaces
simple tubular
86
terminal secretory unit
simple branched tubular
87
mucous glands of oral active
compound tubular
88
terminal secretory unit forms a long coil
simple coiled tubular
89
one terminal secretory unit
simple alveolar
90
several alveoli
simple branched alveolar
91
glands of respiratory tract
compound acinar
92
glands associated with the mouth
compound tubuloalveolar
93
have large complex terminal secretory inits
saccular gland
94
lined by simple squamous and may be supported by myoephitelial cells
intralobular duct
95
smallest
intercalary duct
96
larger than intercalated duct
striated duct
97
lined by simple cubiodal epithelium
interlobular duct
98
larger ducts line by simple columnar epithelium
lobar ducts
99
largest duct lined by either stratified squamous epithelium
primary duct

Histology (10 decks)

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