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Anatomy 1 > Tissues > Flashcards

Tissues Flashcards

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1
Q

Tissues?

A

groups of cells in similar structure and function

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2
Q

What the four kinds of tissues?

A

1) Epithelial-covering
2) Connective-support
3) Muscle-movement
4) Nerve-Control

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3
Q

Function of Epithelial Tissue

A 
Protection
Absorption
Filtration
Excretion
Secretion
Sensory Reception
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4
Q

Cellularity

A

composed almost entirely of cells

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5
Q

Special Contacts

A

Form continuous sheets held together by tight junctions and demosomes

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6
Q

Polarity

A

Apical (microvilli) (top)

Basal (glucoproteins) (bottom) surfaces

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7
Q

Basal acts as a what?

A

filter

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8
Q

Supported by connective tissue

A

rest upon and supported by connective tissues/ Deep to basal lamina is reticular lamina

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9
Q

Avascular

A

receive nerve impulses

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10
Q

regenerative

A

rapidly replaces lost cells by cell division

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11
Q

How’s each epithelia named?

A

2 names first is layers (simple or stratified); second is shape

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12
Q

Simple

A

one layer

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13
Q

Stratified

A

2 or more layers

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14
Q

example of stratified

A

high abrasion areas

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15
Q

Three shape kinds

A

Squamus, cuboidal, columnar

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16
Q

Squamus

A

flat

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17
Q

cuboidal

A

sperical

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18
Q

columnar

A

elongated

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19
Q

Shape in nucleus determines what for cell?

A

shape

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20
Q

If part of body needs fast absorption what shape cell do you not want?

A

columnar

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21
Q

Epithealia: Simple Squamous Defintion

A

Single layer of flattened cells with disc-shaped nuclei and sparse cytoplasm

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22
Q

Function of Simple Squamous

A

Diffusion and Filtration

Provide a slick, friction-reducing lining in lymphatic and cardiovascular systems

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23
Q

Where are simple squamous located?

A

Present in the kidney, glomeruli, lining of heart, blood vessels, lymphatic vessels, and sersae

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24
Q

Definition of Simple Cuboidal

A

Single layer of cube like cells with large, spherical central nuclei

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25
Functions of Simple Cuboidal
Secretion | Absorbtion (thick operations)
26
Location of Simple Cuboidal
kidney tubules | ducts and secretory portions of small glands and ovary surface
27
Simple Columnar
single layer of tall cells with oval nuclei; many contain cilia
28
What cells are found in simple columnar?
goblet cells
29
Function of Simple Columnar
Absorption and Secretion
30
What do nonciliated type of simple columnar line in the human body?
digestive tract and gallbladder
31
What do ciliated type of simple columnar line in human body?
small bronchi, uterine tubes, and some regions of the uterus
32
What does Cilia help do?
move through internal passageways
33
Pseudostratified Columnar
single layer of cells with different heights; some do not reach the free surface
34
What are seen at different layers in Pseudostratified columnar ?
Nuclei
35
Pseudostratified Columnar functions
secretion and propulsion of mucus
36
Where is pseudo stratified columnar located?
Present in the male sperm-carrying ducts (conciliated) and trachea (cilated)
37
Stratified Squamous
Thick membrane composed of several layers of cells
38
Function of Stratified Squamous
protection of underlying areas subjected to abrasion
39
Stratified Squamous forms
the external part of skin's epidermis (keratinized cells)
40
Stratified Squamous lines?
esophagus, mouth, and vagina (nonkeratinized cells)
41
Stratified Cuboidal
rare in body, typically two cell layers
42
Where are stratified cuboidal found?
some sweat and mammary glands
43
Stratified Columnar
limited distribution in the body
44
Where are stratified columnar located?
pharnyx, male uretha
45
Where does stratified columnar line?
some glandular ducts
46
Transitional Definition
Several cell layers, basal cells are cuboidal or columnar, surface cells are dome shaped
47
Transitional stretches to?
permit the dissension of the urinary bladder
48
Transitional lines?
the urinary bladder, ureters, and part of the urethra
49
Gland
one or more cells that makes and secretes an aqueous fluid, releases proteins, steroids or lipids
50
Glandular are classified by?
site of product release | relative numbers of cells forming the gland
51
site of product release
endocrine (internal) or exocrine (external)
52
Relative number of cells forming the gland
unicellular (w/in epithelial) or multicellular (invagination, evagination)
53
Endocrine Gland
Ductless gland that produces hormones (regulatory chemicals), hormones will enter blood or lymp to target organ
54
EXAMPLE OF ENDOCRINE GLAND
hormones produced by intestinal cells causes the pancreas to release enzymes Secretions include amino acids, proteins, glycoproteins, and steroids
55
Exocrine Glands is more?
numerous than endocrine glands
56
Exocrine gland secretes what?
their products onto body surfaces (skin) or into body cavities
57
Example of exocrine glands
mucous, sweat, oil and salivary glands
58
The only vital unicellular exocrine gland is?
goblet cell forms mucin
59
Multicellular exocrine glands are composed of ...?
a duct and secretory unit
60
Multicellular exocrine are more complex than?
unicellular glands
61
Multicellular exocrine glands are classified according to ...?
``` structure of their secretory units Simple (unbranched duct) Compound duct (branched duct) ```
62
Multicellular exocrine glands shapes
tubular (if secretory cells forms tubes), alveolar (flask like sacs), tub alveolar (have both types of secretory units

Anatomy 1 (8 decks)

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