1/9 Lecture

Question 1

movable soft tissue:

Answer 1

soft palate, l and B mucosa, tongue, floor of mouth

Question 2

Oral mucosa comprises;

Answer 2

CT, keratinized, para, and nonk SSE

Question 3

3 types of oral mucosa:

Answer 3

lining, specialized, masticatory

Question 4

Cell type of oral mucosa:

Answer 4

SSE, polygonal, highly approximated

Question 5

Layers of keratinized:

Answer 5

basal, spinosum, granulosum, corneum

Question 6

Layers of non-k

Answer 6

basal, spinosum, intermedium, suprficale

Question 7

What are the 2 layers below basale?

Answer 7

BM, dermis

Question 8

Layer closest to CT:

Answer 8

basale

Question 9

Where are tissues k?

Answer 9

wherever we have friction, barrier function

Question 10

Main cell type in epi of oral mucosa;

Answer 10

keratinocyte

Question 11

Final stage of epi oral mucosa differentiation:

Answer 11

keratinized

Question 12

Keratinocytes form:

Answer 12

functional barrier

Question 13

Nucleus of keratinocyte:

Answer 13

pyknotic

Question 14

Layer w keratohyaline:

Answer 14

Granular

Question 15

Shape of cells of basale:

Answer 15

cuboidal, low clumnar

Question 16

Layers to basale:

Answer 16

1 cell thick

Question 17

basale is interface of:

Answer 17

epi and LP

Question 18

TF? Basale is constantly renewed

Answer 18

T.

Question 19

Shape of nucleus in basale:

Answer 19

oval, R angle to plane of epi/CT junction

Question 20

Layers of spinosum:

Answer 20

4-5, superficial layer flattened

Question 21

TF? Cells of spinosum do not undergo mitosis.

Answer 21

F. few mitoses

Question 22

Origin of new epi:

Answer 22

spinosum

Question 23

TF? spinosum cells are connected via hemi-desmosomes.

Answer 23

F. desmosomes

Question 24

These can be seen in upper layer of spinosum:

Answer 24

membrane-coating granules

Question 25

Function of membrane-coating granules:

Answer 25

unknown

Question 26

spinosum is aka:

Answer 26

prickle layer

Question 27

stratum germanotum:

Answer 27

basale + spinosum

Question 28

Markers to determine the origin of a cancerous tumor

Answer 28

cytokeratin markers

Question 29

TF? granulosum is present in both k and non-k

Answer 29

F. not non-k

Question 30

Layer of granulosum

Answer 30

3-5

Question 31

Most prominent layer in k:

Answer 31

granulosum

Question 32

Cytoplasmic keratohyaline granules form:

Answer 32

matrix for keratin fibers

Question 33

TF? There are numerous cytokerating present in oral mucosa.

Answer 33

T

Question 34

Shape of nucleus, corneum:

Answer 34

no nucleus!

Question 35

Turn over of oral mucosa:

Answer 35

12-13d

Question 36

Layer w abundant k filaments:

Answer 36

corneum

Question 37

how long should it take for an ulcer to heal?

Answer 37

2w

Question 38

Is lining mucosa k or non-k?

Answer 38

non-k

Question 39

TF? Surface cells of k tissue is alive.

Answer 39

F. no nucleus

Question 40

TF? There are very few keratin filaments in non-k tissue.

Answer 40

F. none

Question 41

Layers absent in non-k tissue:

Answer 41

corneum, granulosum

Question 42

Describe the submucosa of non-k epi:

Answer 42

loosely organized, free mobility of mucosa in relation to underlying tissue

Question 43

Lining mucosa covers all surfaces of OC except:

Answer 43

gingiva, hard palate, dorsal tongue

Question 44

Function of keratin:

Answer 44

withstand frictional forces

Question 45

This binds epi to bone:

Answer 45

collagenous fibers

Question 46

TF? Collagenous fibers are thinner and less organized than lining mucosa.

Answer 46

F thicker/ more organized

Question 47

Masticatory tissue in mouth:

Answer 47

gingiva, palate

Question 48

masticatory, k or non-k?

Answer 48

k

Question 49

Nucleus of para-k surface cells:

Answer 49

dark stained

Question 50

TF? Para-k has no corneum or granulosum.

Answer 50

t

Question 51

Layers of para-k:

Answer 51

basale, spinosum, intermedium, superficiale

Question 52

Layer directly below epi:

Answer 52

LP

Question 53

Layers of LP

Answer 53

papillary, reticular

Question 54

BV that give rise t secondary plexus in papillary layer of LP:

Answer 54

BV is submucosa

Question 55

TF?> Epi is vascular.

Answer 55

F. avascular

Question 56

Submucosa is below this layer if present:

Answer 56

reticular

Question 57

Location of secondary plexus:

Answer 57

Papillary layer (LP)

Question 58

Blood supply for LP

Answer 58

submucosa

Question 59

Are there lymphocytes in the CT?

Answer 59

yes

Question 60

TF? Submucosa is present in most of the OC:

Answer 60

F. absent or limited in most of OC

Question 61

Fxn of submucosa:

Answer 61

attaches to LP to bone/muscle

Question 62

Submucosa contains:

Answer 62

BV's, nn., lymphatics

Question 63

Functions of submucosa:

Answer 63

nutrition, defense

Question 64

What does LP attach to if there is no submucosa?

Answer 64

directly to bone (mucoperiosteum)