turnover and repair quiz

Question 1

turnover of epithelium occurs as the newly formed deepest cells migrate_______ from their formation near the _______

Answer 1

superficially

basement membrane

Question 2

the time taken for a cell to divide and pass through the entire thickness of tissue

Answer 2

turnover time

Question 3

in order to migrate, the cells release and then regain their _______ from their intercellular junctions in the more superficial location

Answer 3

desmosomal connections

Question 4

the turnover time is higher for epithelium or connective tissue?

Answer 4

epithelium

Question 5

the higher turnover time is a result of the _____ level of mitosis in those deepest diving cells near the basement membrane

Answer 5

higher

Question 6

the older, superficial epithelial cells are being shed or lost______ as deeper germinal cells are dividing into more cells

Answer 6

at the same rate

Question 7

what epithelium has a higher turnover time than the epidermis of skin?

Answer 7

oral mucosa

Question 8

the differences of turnover time are especially noted during repair or healing of the tissue after ____

Answer 8

injury

Question 9

the epithelium that lines the cheek (buccal mucosa) has higher turnover time than the ep of the

Answer 9

skin(27 days)

buccal(14 days)

Question 10

turnover time for hard palate

Answer 10

24 days

Question 11

turnover time for floor of mouth

Answer 11

20 days

Question 12

turnover time for buccal and labial mucosa

Answer 12

14 days

Question 13

turnover time for attached gingiva

Answer 13

10 days

Question 14

turnover time for taste buds

Answer 14

10 days

Question 15

turnover time for junctional epithelium(attached to tooth)

Answer 15

4-6 days

Question 16

immediately after an injury to either the skin or oral mucosa, a ___ from blood products forms in the area, and the inflammatory response is triggered by the bloods white blood cells as they migrate into the tissue

Answer 16

clot

Question 17

the epithelial cells at the ____ of the injury will lose their desmosomal intercellular junctions and ___ to form a new epithelial surface layer beneath the clot

Answer 17

periphery

desmosomal

Question 18

turnover of ct proper in skin or oral mucosa occurs as a result of the production of____ and _____ by _____

Answer 18

fibers
intercellular substance
fibroblasts

Question 19

when injured, the ct proper in the skin or oral mucosa goes through stages of repair that are ____ to the events in the more superficial epithelium

Answer 19

related

Question 20

after a clot forms and a inflammatory response is triggered with WBC, ____ migrate to produce an immature ct deep to the clot and newly forming epithelial surface

Answer 20

fibroblasts

Question 21

the immature connective tissue is considered_____ and has few fibers and an increased number of blood vessels

Answer 21

granulation tissue

Question 22

appears as a redder, soft tissue that bleeds easily

Answer 22

granulation tissue

Question 23

may become abundant and can interfere with the repair process. surgical removal of excess granulation tissue may be necessary to allow for optimum repair. sometimes occurs after the extraction of teeth or with periodontal disease

Answer 23

granulation tissue

Question 24

later, during the repair process, this temporary granulation tissue is replaced by paler and firmer ______ in the area

Answer 24

scar tissue

Question 25

contains an increased number of fibers and fewer blood vessels

Answer 25

scar tissue

Question 26

what shows more scar tissue both clinically and microscopically after repair than does the oral mucosa

Answer 26

skin

Question 27

unlike skin and lips, the oral mucosa is ____ from changes due to ultraviolet radiation

Answer 27

protected

Question 28

it is sometimes_____ to distinguish oral mucosa changes caused by aging from changes caused by chronic disease

Answer 28

difficult

Question 29

in some regions of oral mucosa, there is a slight ____ of the epithelium with a concomitant flattening of the epithelial-connective tissue interface

Answer 29

thinning

Question 30

aging of oral mucosa:there is a reduction of ___ on the attached gingiva

Answer 30

stippling

Question 31

aging of oral mucosa: an increase in _____ in the labial and buccal mucosa

Answer 31

fordyce's spots

Question 32

aging of oral mucosa: enlargement of ____ veins to form lingual varicosities on the ventral surface of tongue

Answer 32

lingual

Question 33

aging of oral mucosa: the _____ decrease in quantity, appear smaller, and are less active in older oral mucosa

Answer 33

fibroblasts

Question 34

aging of oral mucosa: the ____ has a slower collagen turnover time

Answer 34

entire lamina propria

Question 35

aging of oral mucosa: the ability of the oral mucosa to repair itself is____ and the length of the repair time is _____ just as turnover time

Answer 35

reduced | increased

Question 36

the number of lingual papillae, especially the ___ lingual papillae, and associated taste buds is also reduced and may be related to changes in taste perception

Answer 36

foliate

Question 37

changes in the salivary glands that result in less production of saliva

Answer 37

hyposalivation

Question 38

less production of saliva, which makes the oral mucosa drier and less protective

Answer 38

xerostomia

Question 39

less defined division between the ___ and dense layers of lamina propria with age

Answer 39

papillary

Question 40

in older oral mucosa, collagen fibers appear ____ and arranged into dense bundles resembling those found in tendons or ligaments

Answer 40

thickened

Question 41

elastic fibers in older oral mucosa, if present in lamina propria, appear ____ even though more of them are present; loss of resiliency found in aged oral mucosa

Answer 41

changed