Eha Chap 8

Front 1

What is the time it takes for the newly divided cells to be completely replaced throughout the tissue?

Back 1

turnover time

Front 2

What is the tissue type that covers and lines the external and internal body surfaces, including vessels and small cavities?

Back 2

epithelium

Front 3

What embryonic layer is epithelium derived from?

Back 3

all three

Front 4

Why is epithelium highly regenerative?

Back 4

its deepest and germinal layers are capable of mitosis

Front 5

Epithelial cells are tightly joined by intercellular junctions to one another in the form of what?

Back 5

desmosomes

Front 6

Epithelial cells are joined to nearby noncellular surfaces by what?

Back 6

hemidesmosomes

Front 7

Is epithelial tissue vascular or avascular?

Back 7

avascular

Front 8

What is located between the skin and connective tissue in the both the skin and oral mucosa?

Back 8

basement membrane

Front 9

What is the basement produced by?

Back 9

epithelium and connective tissue

Front 10

What type of epithelium consists of a single layer of epithelial cells?

Back 10

simple epithelium

Front 11

Simple squamous epithelium consists of flattened cells called what?

Back 11

squames

Front 12

What term is used to refer to the simple squamous epithelium lining blood and lymphatic vessels, heart, and serous cavities?

Back 12

endothelium

Front 13

What epithelium falsely appears as multiple cell layers when viewed under a low-power microscopic magnification?

Back 13

pseudostratified epithelium

Front 14

Pseudostratified epithelium is what type of epithelium?

Back 14

simple epithelium

Front 15

What type of epithelium consists of two or more layers of cells, with only the lower level contacting the basement membrane?

Back 15

stratified epithelium

Front 16

What is used to determine the classification of stratified epithelium?

Back 16

shape of the surface layer

Front 17

Most of the epithelial cells in the body are what type of epithelium?

Back 17

stratified squamous epithelium

Front 18

What is a tough, fibrous, opaque, waterproof protein that is impervious to bacterial invasion and resistant to friction?

Back 18

keratin

Front 19

Keratin is produced during the maturation of what type of epithelial cells as they migrate to the surface of the keratinized tissue?

Back 19

keratinocyte

Front 20

What is an example of keratinized stratified squamous epithelium?

Back 20

epidermis

Front 21

Why do epithelial cells relesae and then regain their desmosomal intercellular junctions in the more superficial location?

Back 21

in order to migrate

Front 22

What is the term used for the superficial cells being shed or lost at the same rate as the deeper germinal cells are dividing into more cells?

Back 22

desquamation

Front 23

What is a thin, acellular, chemicalbased structure always located between any form of epithelium and its underlying connective tissue?

Back 23

basement membrane

Front 24

Is the basement membrane cellular or acelluar?

Back 24

acellular

Front 25

What is the name for the superficial portion of the basement membrane?

Back 25

basal lamina

Front 26

What is the basal lamina produced by?

Back 26

epithelium

Front 27

What is the deeper portion of the basement membrane?

Back 27

reticular layer

Front 28

What does the reticular layer consist of?

Back 28

collagen and reticular fibers

Front 29

What are the two layers of the basal lamina?

Back 29

lamina lucida and lamina densa

Front 30

What is the most abundant type of basic tissue in the body?

Back 30

connective tissue

Front 31

Where is connective tissue derived from?

Back 31

somites

Front 32

What attachment mechanisms are part of the basement membrane?

Back 32

hemidesmosomes
tonofilaments
anchoring collagen fibers

Front 33

Is connective tissue vascular or avascular, with the exception of what?

Back 33

vascular
cartilage

Front 34

What is the most common type of cell found in connective tissue?

Back 34

fibroblast

Front 35

Fibroblasts are considered what because they don't leave the tissue to enter the blood?

Back 35

fixed cells

Front 36

Young fibroblasts that are actively engaged in the production of fibers and intercellular substances appear to have large amounts of what?

Back 36

cytoplasm
mitochondria
rough ER

Front 37

What are the main connective tissue fiber found in the body?

Back 37

collagen fibers

Front 38

What is the name for tissue containing large amounts of collagen fibers?

Back 38

collagenous connective tissue

Front 39

What is the name for the dermis in the mouth?

Back 39

lamina propria

Front 40

What is the name for the hypodermis in the mouth?

Back 40

submucosa layer

Front 41

What are the cells responsible for the synthesis of Type I collagen?

Back 41

fibroblasts, osteoblasts, and odontoblasts

Front 42

What are composed of microfilaments embedded in the protein elastin?

Back 42

elastic fibers

Front 43

What are found in relationship to an embryonic tissue and thus are more rarely found in the body?

Back 43

reticular fibers

Front 44

Loose and dense connective tissue are found together in two layers in the form of what?

Back 44

connective tissue proper

Front 45

The connective tissue proper in the skin is termed what and is found deep to the epidermis?

Back 45

dermis

Front 46

What is found deep to the epidermis?

Back 46

hypodermis

Front 47

The superficial layer of the dermis of the skin and lamina propria of the oral mucosa is composed of what?

Back 47

loose connective tissue

Front 48

In the dermis or lamina propria, the layer of loose connective tissue is also called what?

Back 48

papillary layer

Front 49

The papillary layer contains what, which are extensions of loose connective tissue into the epithelium?

Back 49

connective tissue papillae

Front 50

What is found deep to the loose connective tissue?

Back 50

dense connective tissue

Front 51

In contrast to loose connective tissue, dense connective tissue is what?

Back 51

tightly packed and consists mainly of protein fibers

Front 52

The dense connective tissue in the dermis and lamina propria is also called what?

Back 52

reticular layer

Front 53

What is the name for immature connective tissue?

Back 53

granulation tissue

Front 54

Specialized connective tissue includes what?

Back 54

adipose, elastic, or reticular

Front 55

What is a fatty tissue that is found beneath the ksin, around organs and various joints, and in portions of the oral cavity?

Back 55

adipose connective tissue

Front 56

After fibroblasts, the predominant type of cell found in connective tissue is what?

Back 56

adipocyte

Front 57

What is a firm, noncalcified connective tissue that serves as a skeletal tissue in the body?

Back 57

cartilage

Front 58

Cartilage has some flexibility resulting from its fibers in them matrix, however, it has no what?

Back 58

no inorganic or mineralized materials

Front 59

Is cartilage vascular or avascular?

Back 59

avascular

Front 60

The connective tissue surrounding most connective tissue is what?

Back 60

perichondrium