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Week 3 AnaPhy > Tissues > Flashcards

Tissues Flashcards

1
Q

Types of Tissues

A

Epithelial
Connective
Muscle
Nerve

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2
Q

Covers a body surface or lines a body cavity

A

Epithelial Tissue

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3
Q

Forms most glands

A

Epithelial Tissue

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4
Q

Functions of epithelium

A

Protection
Absorption, secretion, and ion transport
Filtration
Forms slippery surfaces

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5
Q

First name of tissue indicates number of ______

A

Layers

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6
Q

One layer of cells

A

Simple

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7
Q

More than one layer of cells

A

Stratified

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8
Q

Last name of tissue describes ______ of cells

A

Shape

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9
Q

Wider than tall (plate or “scale” like)

A

Squamous cells

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10
Q

Are as wide as tall, as in cubes

A

Cuboidal cells

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11
Q

Are taller than they are wide, like columns

A

Columnar cells

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12
Q

The name may also include any _________ of the epithelium

A

Accessory structures

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13
Q

Accessory structures in the epithelium

A

Goblet cells
Cilia
Keratin

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14
Q

Single layer of flat cells with disc shaped nuclei

A

Simple Squamous Epithelium

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15
Q

Special types of Simple squamous epithelium

A

Endothelium

Mesothelium

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16
Q

Lining of blood and lymphatic vessels

A

Endothelium

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17
Q

Lines peritoneal, pleural, and

pericardial cavities

A

Mesothelium

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18
Q

Covers visceral organs of those

cavities

A

Mesothelium

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19
Q

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

A

Simple Cuboidal Epithelium

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20
Q

Function of this epithelium is secretion and absorption

A

Simple Cuboidal Epithelium

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21
Q

Single layer of column shaped (rectangular)

cells with oval nuclei

A

Simple Columnar Epithelium

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22
Q

Some bear cilia at their apical surface (epithelium)

A

Simple Columnar Epithelium

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23
Q

May contain goblet cells (epithelium)

A

Simple Columnar Epithelium

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24
Q

Function of Simple Columnar Epithelium

A 
Protection
Absorption
Secretion of mucus, enzymes, and other
substances
Ciliated type propels mucus or reproductive
cells by ciliary action
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25
Q

Contain two or more layers of cells

A

Stratified Epithelium

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26
Q

Regenerate from below

A

Stratified Squamous Epithelium

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27
Q

Major role is protection

A

Stratified Epithelium

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28
Q

Named according to the shape of cells (plate-like) and number of layers (2) at apical layer

A

Stratified Squamous Epithelium

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29
Q

Contain the protective protein keratin

A

Stratified Squamous Keratinized Epithelium

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30
Q

Surface cells are dead and full of keratin. It is referred as “dry skin”

A

Stratified Squamous Keratinized Epithelium

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31
Q

Forms the moist lining of body openings (lining of

esophagus, mouth, and vagina)

A

Stratified Squamous Non Keratinized Epithelium

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32
Q

Special Epithelial tissues

A

Pseudostratified

Transitional

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33
Q

All cells originate at basement membrane

A

Pseudostratified Columnar Epithelium

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34
Q

Only tall cells reach the apical surface

A

Pseudostratified Columnar Epithelium

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35
Q

May contain goblet cells and bear cilia

A

Pseudostratified Columnar Epithelium

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36
Q

Nuclei lie at varying heights within cells

A

Pseudostratified Columnar Epithelium

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37
Q

Gives false impression of stratification

A

Pseudostratified Columnar Epithelium

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38
Q

Function of Pseudostratified Columnar Epithelium

A

Protection
Secretion of mucus; propulsion of
mucus by cilia

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39
Q

Are a group of tissues which connects or binds other tissues in the body

A

Connective tissues

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40
Q

Fibers found in the connective tissue

A

COLLAGEN
ELASTIC
RETICULAR

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41
Q 
Collagen Fiber
Color:
Stain appearance:
Protein:
Thickness:
Features:
Special stain: 
Sites:
A

Color: Pearly white
Stain appearance: Dull pink with eosin
Protein: Collagen
Thickness: 1 - 12 um
Features: Wavy, do not branch, run in bundles
Special stain: Van Gieson: red; AgNO3: brown;
Masson’s trichome: blue
Sites: To provide strength; tendon, ligament etc.

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42
Q 
Elastic Fiber
Color:
Stain appearance:
Protein:
Thickness:
Features:
Special stain: 
Sites:
A

Color: Yellow
Stain appearance: Bright, highly refractive
Protein: Elastin
Thickness: 0.1 - 0.2 um
Features: less wavy, branch, run singly
Special stain: Orcein: Black
Sites: To provide elasticity; lig nuchae, vocal cords, lungs,

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43
Q 
Reticular Fiber
Color:
Stain appearance:
Protein:
Thickness:
Features:
Special stain: 
Sites:
A 
Reticular Fiber
Color: -
Stain appearance: Not stained by H & E
Protein: Reticulin
Thickness: Thinnest
Features: Straight, branch &anastomose-reticulum
Special stain: AgNO3:Black
Sites: To provide support spleen, liver, lymph nodes, kidney, BM
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44
Q

Cells of connective tissue

A 
Fibroblast
Plasma cell
Adipose cell
Large lymphocyte
Macrophage
Fibrocyte
Eosinophil
Neutrophil
Cell with pigmented granules
Small lymphocyte
Mast cell
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45
Q

A group of cells with similar structure and function, plus the extracellular substance surrounding them.

A

Tissue

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46
Q

Is the study of tissues.

A

Histology

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47
Q

A covering or lining tissue

A

Epithelial

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48
Q

A diverse primary tissue type that makes up part of every organ in the body

A

Connective

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49
Q

A tissue that contracts or shortens, making movement possible

A

Muscle

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50
Q

Responsible for coordinating and controlling many body activities

A

Nervous

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51
Q

Covers and protects surfaces, both outside and inside the body.

A

Epithelium or epithelial tissue

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52
Q

Included under the classification of epithelial tissue are the __________

A

Exocrine and endocrine glands.

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53
Q

Characteristics of Epithelial Tissue

A 
Mostly composed of cells
Covers body surfaces
Distinct cell surfaces
Cell and matrix connections
Nonvascular
Capable of regeneration
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54
Q

Functions of Epithelial Tissues

A 
Protects underlying structures
Acts as a barrier
Permits passage of substances
Secretes substances
Absorption of substances
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55
Q

Epithelial tissues are classified primarily according to the ___________ and the _______________.

A

Number of cell layers

Shape of the superficial cells

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56
Q

The cell layers can be

A

Simple, stratified, or pseudostratified.

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57
Q

The cell shapes can be

A

Squamous, cuboidal, columnar, or a special transitional shape, that varies with the degree of stretch.

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58
Q

Epithelium that consists of a single layer of cells, with each cell extending from the basement membrane to the free surface.

A

Simple epithelium

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59
Q

Epithelium that consists of more than one layer of cells, but only the basal layer attaches the deepest layer to the basement membrane.

A

Stratified epithelium

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60
Q

Is a special type of simple epithelium, that appears to be falsely stratified.

A

Pseudostratified columnar epithelium

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61
Q

It consists of one layer of cells, with all the cells attached to the basement membrane but not all appear at the apical surface.

A

Pseudostratified columnar epithelium

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62
Q

Due to variations in the shape of the cells, the epithelia appears stratified.

A

Pseudostratified columnar epithelium

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63
Q

There are three types of epithelium based on idealized shapes of the epithelial cells:

A

Squamous cells
Cuboidal cells
Columnar cells

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64
Q

Are flat or scale-like.

A

Squamous cells

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65
Q

Cube-shaped—about as wide as they are tall.

A

Cuboidal cells

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66
Q

Tend to be taller than they are wide.

A

Columnar cells

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67
Q

Is a single layer of thin, flat cells.

A

Simple squamous epithelium

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68
Q

Some substances easily pass through this thin layer of cells, but other substances do not.

A

Simple squamous epithelium

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69
Q

True of False

The lungs, simple squamous epithelium, allows for gas exchange.

A

True

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70
Q

True or False

The kidneys, stratified squamous epithelium, helps filter wastes from the blood while keeping blood cells inside the blood vessels.

A

False

Kidney is a simple squamous epithelium

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71
Q

Is a single layer of cube-like cells that carry out active transport, facilitated diffusion, or secretion.

A

Simple cuboidal epithelium

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72
Q

They have a greater secretory capacity than simple squamous epithelial cells.

A

Simple cuboidal epithelium

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73
Q

Is a single layer of tall, thin cells. The large size of these cells enables them to perform complex functions, such as secretion.

A

Simple columnar epithelium

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74
Q

This epithelium of the small intestine produces and secretes mucus and digestive enzymes.

A

Simple columnar epithelium

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75
Q

Secretes mucus, which covers its free surface.

A

Pseudostratified columnar epithelium

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76
Q

_______ in the airways move the mucus and accumulated debris toward the throat, where it is swallowed.

A

Cilia

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77
Q

Forms a thick epithelium because it consists of several layers of cells.

A

Stratified squamous epithelium

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78
Q

Though the deepest cells are cuboidal or columnar and are capable of dividing and producing new cells, the naming is based on the shape of the surface cells.

A

Stratified squamous epithelium

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79
Q

There are two types of stratified squamous epithelia:

A

Keratinized stratified squamous and nonkeratinized stratified squamous epithelia.

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80
Q

The outer layer of the skin is comprised of a ____________.

A

Keratinized stratified squamous epithelium

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81
Q

The _______ reduces the loss of water from the body.

A

Keratin

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82
Q

Epithelium of the mouth is a moist _____________.

A

Nonkeratinized stratified squamous epithelium

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83
Q

This________________________ provides protection against abrasion and acts as a mechanical barrier.

A

Nonkeratinized stratified squamous epithelium

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84
Q

______, however, can move across it more readily than across the skin (keratinized stratified squamous).

A

Water

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85
Q

Consists of more than one layer of cuboidal epithelial cells.

A

Stratified cuboidal epithelium

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86
Q

This epithelial type is relatively rare and is found in sweat gland ducts, ovarian follicular cells, and the salivary glands.

A

Stratified cuboidal epithelium

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87
Q

It functions in absorption, secretion, and protection.

A

Stratified cuboidal epithelium

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88
Q

Consists of more than one layer of epithelial cells; the surface cells are columnar but the deeper cells are irregular or cuboidal in shape.

A

Stratified columnar epithelium

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89
Q

Relatively rare, found in the mammary gland ducts, the larynx, and a portion of the male urethra.

A

Stratified columnar epithelium

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90
Q

This epithelium carries out secretion, protection, and some absorption

A

Stratified columnar epithelium

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91
Q

Is a special type of stratified epithelium that can be greatly stretched.

A

Transitional epithelium

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92
Q

The shape of the cells change as the epithelium is stretched.

A

Transitional epithelium

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93
Q

Lines cavities that can expand greatly, such as the urinary bladder.

A

Transitional epithelium

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94
Q

It also protects underlying structures, like the urinary bladder, from the caustic effects of urine.

A

Transitional epithelium

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95
Q

Most epithelia have a _________ that is not in contact with other cells and faces away from underlying tissues.

A

Free surface

96
Q

The free surface can be ____________________.

A

Smooth or lined with microvilli or cilia.

97
Q

Move materials over the top of the cell.

A

Cilia

98
Q

Increase surface area.

A

Microvilli

99
Q

Cells have several structures that hold one cell to one another or to the basement membrane.
These structures do three things:

A

Mechanically bind the cells together
Help form a permeability barrier
Provide a mechanism for intercellular communication.

100
Q

_________ are mechanical links that bind cells together.

A

Desmosomes

101
Q

________ are half desmosomes that anchor cells to the basement membrane.

A

Hemidesmosomes

102
Q

Prevent the passage of materials between epithelial cells because they completely surroundeach cell, similar to the way a belt surrounds the waist.

A

Tight junctions

103
Q

True or False

Materials that pass through the epithelial layer must pass through the cells, so those cells regulate what materials can cross.

A

True

104
Q

Are found in the lining of the intestines.

A

Tight junctions

105
Q

Are small channels that allow small molecules and ions to pass from one epithelial cell to an adjacent one.

A

Gap junctions

106
Q

Most epithelial cells are connected to one another by __________, and researchers believe that molecules or ions moving through the this act as communication signals to coordinate the activities of the cells.

A

Gap junctions

107
Q

Are secretory organs that secrete substances onto a surface, into a cavity, or into the bloodstream.

A

Glands

108
Q

Are composed primarily of epithelium, with a supporting network of connective tissue.

A

Glands

109
Q

Glands with ducts are called ________.

A

Exocrine glands

110
Q

Both the gland and its ducts is lined with epithelium.

A

Exocrine glands

111
Q

Are ductless glands

A

Endocrine glands

112
Q

They secrete their products (termed hormones) into the bloodstream.

A

Endocrine glands

113
Q

True or False

Most exocrine glands are single-cellular, comprised of many cells.

A

False

Multicellular

114
Q

Some exocrine glands are composed of a single cell, like__________, that secrete mucus.

A

Goblet cells

115
Q

Multicellular exocrine glands classification according to the structure of their ducts and secretory regions.

A 
Simple glands
Compound exocrine glands
Tubular
Acinar or alveolar
Tubuloacinar or tubuloalveolar.
116
Q

Have a single, non-branched duct, some have branched ducts.

A

Simple exocrine glands

117
Q

Have multiple, branched ducts.

A

Compound exocrine glands

118
Q

Glands with secretory regions shaped as tubules (small tubes) are called ________

A

Tubular

119
Q

Glands shaped in saclike structures are called ______

A

Acinar or alveolar

120
Q

Tubular glands can be ____________

A

Straight or coiled

121
Q

Glands with a combination of the two are called ________

A

Tubuloacinar or tubuloalveolar.

122
Q

Exocrine glands classification according to how products leave the cell.

A

Merocrine
Apocrine
Holocrine

123
Q

Secretion involves the release of secretory products by exocytosis.

A

Merocrine

124
Q

Secretion involves the release of secretory products as pinched-off fragments of the gland cells.

A

Apocrine

125
Q

Secretion involves the shedding of entire cells.

A

Holocrine

126
Q

Is a diverse primary tissue type that makes up part of every organ in the body.

A

Connective tissue

127
Q

Connective tissue differs from the other three tissue types in that it consists of cells separated from each other by abundant ________________.

A

Extracellular matrix

128
Q

Is diverse in both structure and function.

A

Connective tissue

129
Q

Connective tissue is comprised of _______________

A

Cells, protein fibers, and an extracellular matrix.

130
Q

Functions of Connective tissues

A 
Enclose and separate other tissues
Connecting tissues to one another
Supporting and moving parts of the body
Storing compounds
Cushioning and insulating
Transporting
Protecting
131
Q

The specialized cells of the various connective tissues produce the _______________.

A

Extracellular matrix

132
Q

Connective tissue cells:

A

Osteoblasts, Osteocytes, Osteoclasts
Fibroblasts, fibrocytes
Chondroblasts, chondrocytes

133
Q

CT cells that form bone

A

Osteoblasts

134
Q

CT cells that form fibrous connective tissue

A

Fibroblasts

135
Q

CT cells that form cartilage

A

Chondroblasts

136
Q

CT cells that maintain the bone

A

Osteocytes

137
Q

CT cells that break the bone down.

A

Osteoclasts

138
Q

Maintain the fibrous connective tissue

A

Fibrocytes

139
Q

Maintain the cartilage

A

Chondrocytes

140
Q

White blood cells:

A

Macrophages

Mast cells

141
Q

Are large cells that are capable of moving about and ingesting foreign substances, including microorganisms in the connective tissue.

A

Macrophages

142
Q

Are nonmotile cells that release chemicals, such as ________, that promote inflammation.

A

Mast cells

Histamine

143
Q

The extracellular matrix of connective tissue has three major components:

A

Protein fibers
Ground substance
Fluid

144
Q

Consists of non-fibrous protein and other molecules.

A

Ground substance

145
Q

True or False

The structure of the matrix is responsible for the functional characteristics of connective tissues—for example, they enable bones and cartilage to bear weight.

A

True

146
Q

Three types of protein fibers:

A

Collagen, reticular, and elastic fibers

147
Q

Help form most connective tissues.

A

Collagen, reticular, and elastic fibers

148
Q

Resemble microscopic ropes, are very flexible but resist stretching.

A

Collagen fibers

149
Q

Are very fine, short collagen fibers that branch to form a supporting network.

A

Reticular fibers

150
Q

Have the ability to return to their original shape after being stretched or compressed, giving tissue an elastic quality.

A

Elastic fibers

151
Q

The ground substances:

A

Proteoglycans

152
Q

Are large molecules that consist of a protein core attached to many long polysaccharides.

A

Proteoglycans

153
Q

Can trap large quantities of water between the polysaccharides, which allows them to return to their original shape when compressed or deformed.

A

Proteoglycans

154
Q

Consists of non-fibrous molecules and is shapeless.

A

Ground Substance

155
Q

The two main types of connective tissue

A

Embryonic and adult connective tissue.

156
Q

By _______ of development, most of the embryonic connective tissue has become specialized to form the types of connective tissue seen in adults.

A

Eight weeks

157
Q

Consists of relatively few protein fibers that form a lacy network, with numerous spaces filled with ground substance and fluid.

A

Loose connective tissue

158
Q

Three subdivisions of loose connective tissue are

A

Areolar, adipose, and reticular

159
Q

Primarily consists of collagen fibers and a few elastic fibers.

A

Areolar connective tissue

160
Q

The most common cells in loose connective tissue are the _______

A

Fibroblasts

161
Q

Adipose tissue consists of ______________, which contain large amounts of lipid for energy storage.

A

Adipocytes or fat cells

162
Q

Pads and protects parts of the body and acts as a thermal insulator.

A

Adipocytes or fat cells

163
Q

Forms the framework of lymphatic tissue, such as in the spleen and lymph nodes, as well as in bone marrow and the liver.

A

Reticular tissue

164
Q

Has a relatively large number of protein fibers that form thick bundles and fill nearly all of the extracellular space.

A

Dense connective tissue

165
Q

There are two major subcategories of dense connective tissue:

A

Collagenous and elastic

166
Q

Has an extracellular matrix consisting mostly of collagen fibers.

A

Dense collagenous connective tissue

167
Q

Dense collagenous connective tissue has an extracellular matrix consisting mostly of ______

A

Collagen fibers

168
Q

Dense collagenous connective tissue having the collagen fibers oriented in the same direction is termed

A

Dense regular

169
Q

Examples of dense regular are

A

Tendons and ligaments

170
Q

Dense collagenous connective tissue having the collagen fibers oriented in the multiple directions is termed __________

A

Dense irregular

171
Q

Examples of dense irregular are in the ___________

A

Dermis of the skin and in organ capsules.

172
Q

Has abundant elastic fibers among its collagen fibers.

A

Dense elastic connective tissue

173
Q

Allow the tissue to stretch and recoil.

A

Elastic fibers

174
Q

Examples include the dense elastic connective tissue in the ____________.

A

Vocal cords

175
Q

A genetic condition called _______ results from, in part the inability to properly maintain and form elastic fibers.

A

Marfan syndrome

176
Q

_________ is composed of chondrocytes, located in spaces called lacunae within an extensive matrix.

A

Cartilage

177
Q

Cartilage is composed of

A

Chondrocytes

178
Q

Chondrocytes are located in spaces called

A

Lacunae

179
Q

______ in the matrix gives cartilage flexibility and strength.

A

Collagen

180
Q

Cartilage is resilient because the _________ of the matrix trap water.

A

Proteoglycans

181
Q

True or False

Cartilage provides support, but if bent or slightly compressed, it resumes its original shape.

A

True

182
Q

There are three types of cartilage:

A

Hyaline, fibrocartilage, and elastic cartilage.

183
Q

Is the most abundant type of cartilage

A

Hyaline cartilage

184
Q

Has many functions, such as covering the ends of bones, where they form joints.

A

Hyaline cartilage

185
Q

Has more collagen than does hyaline cartilage and is able to withstand compression and resist tearing or pulling.

A

Fibrocartilage

186
Q

Fibrocartilage is found in the

A

Intervertebral disks

187
Q

Is found in the disks between the vertebrae (bones of the back) and in some joints, such as the knee and temporomandibular (jaw) joints.

A

Fibrocartilage

188
Q

Contains elastic fibers in addition to collagen and proteoglycans.

A

Elastic cartilage

189
Q

Appear as coiled fibers among bundles of collagen fibers.

A

Elastic fibers

190
Q

Is able to recoil to its original shape when bent.

A

Elastic cartilage

191
Q

Contain elastic cartilage.

A

The external ear, epiglottis, and auditory tube

192
Q

Is a hard connective tissue that consists of living cells and a mineralized matrix.

A

Bone

193
Q

The strength and rigidity of the mineralized matrix enables _____ to support and protect other tissues and organs.

A

Bones

194
Q

Two types of bone tissue exist:

A

Spongy bone and compact bone

195
Q

Has spaces between trabeculae or plates, of bone and therefore resembles a sponge.

A

Spongy bone

196
Q

Is more solid, with almost no space between many thin layers of mineralized matrix.

A

Compact bone

197
Q

Is a liquid connective tissue

A

Blood

198
Q

It contains a liquid matrix, termed the _____, along with formed elements.

A

Plasma

199
Q

The formed elements in the blood are

A

Erythrocytes, leukocytes, and platelets.

200
Q

It functions in transport of food, oxygen, waste, hormones, and other substances.

A

Blood

201
Q

Attaches to the skeleton and enables the body to move.

A

Skeletal muscle

202
Q

____________ are striated, or banded, because of the arrangement of contractile proteins within the cells.

A

Skeletal muscle cells

203
Q

Is the muscle of the heart; it is responsible for pumping blood.

A

Cardiac muscle

204
Q

Are cylindrical but much shorter than skeletal muscle cells.

A

Cardiac muscle cells

205
Q

Are striated and usually have one nucleus per cell.

A

Cardiac muscle cells

206
Q

They are often branched and connected to one another by intercalated disks.

A

Cardiac muscle

207
Q

Forms the walls of hollow organs; it is also found in the skin and the eyes.

A

Smooth muscle

208
Q

Responsible for a number of functions, such as moving food through the digestive tract and emptying the urinary bladder.

A

Smooth muscle

209
Q

Are tapered at each end, have a single nucleus, and are not striated.

A

Smooth muscle cells

210
Q

Forms the brain, spinal cord, and nerves.

A

Nervous tissue

211
Q

It is responsible for coordinating and controlling many body activities.

A

Nervous tissue

212
Q

Nervous tissue consists of neurons and support cells, termed ______.

A

Nervous tissue

Glial cells

213
Q

Nervous tissue is composed of 3 parts

A

Cell body, dendrites, and an axon.

214
Q

The ______ is responsible for conducting action potentials.

A

Neuron

215
Q

A __________ is a thin sheet or layer of tissue that covers a structure or lines a cavity.

A

Tissue membrane

216
Q

Most membranes consist of ___________ on which the epithelium rests.

A

Epithelium and connective tissues

217
Q

There are four tissue membranes in the body:

A

Cutaneous, mucous, serous, and synovial.

218
Q

The __________ is an external body surface membrane.

A

Skin, called as cutaneous membrane

219
Q

The __________ line cavities that open to the outside of the body, such as the digestive, respiratory, and reproductive tracts.

A

Mucous membranes

220
Q

True or False

Mucous membranes consist of epithelial cells, their basement membrane, and a thick layer of loose connective tissue.

A

True

221
Q

Many, but not all, mucous membranes secrete _____.

A

Mucus

222
Q

Line cavities that do not open to the exterior of the body, such as the pericardial, pleural, and peritoneal cavities.

A

Serous membranes

223
Q

True or False

Serous membranes consist of three components: a layer of simple squamous epithelium, its basement membrane, and a delicate layer of loose connective tissue.

A

True

224
Q

Serous membranes do not contain glands, but they secrete a small amount of fluid called _______, which lubricates the surface of the membranes.

A

Serous fluid

225
Q

Line the cavities of freely movable joints.

A

Synovial membranes

226
Q

True or False

They are made up of only connective tissue and consist of modified connective tissue cells.

A

True

227
Q

Synovial membranes produce ________, which makes the joint very slippery, thereby reducing friction and allowing smooth movement within the joint.

A

Synovial fluid

228
Q

Is usually a beneficial process occurring when tissues are damaged.

A

Inflammation

229
Q

When _____ infect epithelial cells of the upper respiratory tract, inflammation and the symptoms of the common cold are produced.

A

Viruses

230
Q

Inflammation mobilizes the body’s defenses and isolates and destroys ____________________ so that tissue repair can proceed.

A

Microorganisms, foreign materials, and damaged cells

231
Q

Inflammation produces five major symptoms:

A

Redness, heat, swelling, pain, and disturbance of function.

232
Q

Involves substitution of dead cells for viable cells.

A

Tissue repair

233
Q

Tissue repair can occur by ______________.

A

Regeneration

Fibrosis

234
Q

The new cells are the same type as those that were destroyed, and normal function is usually restored.

A

Regeneration

235
Q

A new type of tissue develops that eventually causes scar production and the loss of some tissue function.

A

Fibrosis or replacement

236
Q

Regeneration can completely repair some tissues, such as the skin and the mucous membrane of the intestine. In these cases, regeneration is accomplished primarily by _______.

A

Stem cells

237
Q

Are self-renewing, undifferentiated cells that continue to divide throughout life.

A

Stem cells

Week 3 AnaPhy (1 decks)

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