DH 1350 Quiz 8 chap 9 oral mucosa

Oral epithelium is classifed as:

Simple squamous epithelium
Stratified squamous epithelium
Pseudostratified columnar epithelium
Simple cuboidal epithelium

The turnover time for all types of epithelium is higher compared to connective tissue. The rapid turnover time is the result of high levels of mitosis in the deepest cells near the basement membrane.  

 Both the statement and reason are correct and related

Both the statement and reason are correct but NOT related

The statement is NOT correct, but the reason is correct

NEITHER the statement NOR the reason is correct

Where is the lamina propria located?

 connective tissue proper region of oral mucosa

alveolar bone proper of the mandible and maxilla

within closely apposed sheets of bone tissue in compact bone

small space that surrounds chondrocytes or ostoecytes

What type of tissue makes up the bulk of the lamina propria of the oral mucosa?

connective tissue
muscle tissue
nerve tissue
epithelium

Where is the capillary blood plexus located in the lamina propria of the oral mucosa?

basal layer
basement membrane
submucosa
between the superficial deeper layers

The lamina propria of the attached gingiva is directly attached to the underlying bone acts as a periosteum and thus is termed _______

The basal layer of oral mucosa generally has:

columnar-shaped cells
two cell layers
cells undergoing mitosis
Nonkeratinized Stratified Squamous Epithelium

Which of the following is a deep tissue that may or may not be present in the oral mucosa, overlies bone or muscle in the oral cavity, and usually contains loose connective tissue and may also contain adipose connective tissue or salivary glands?  

dermis
keratin layer
hypodermis
submucosa

Which of the following is an intermediate protein filament found in calloused epithelial tissues consisting of opaque waterproof substance?

collagen
keratin
inclusion
elastic fibers

Attached gingiva is found between the mucogingival junction and the free gingival groove.

True
False
True False

The attached gingiva and buccal mucosa are mainly pinkish in color and not reddish due to the:

vascularity of the lamina propria
closeness to bone tissue
decreased number of melanocytes
increased thickness of the epithelial layers
Nonkeratinized Stratified Squamous Epithelium,

Keratohyalin granules are located in which of the following epithelial layers?

Stratum spinosum
Stratum granulosum
Orthokeratinized Stratified Squamous Epithelium
Stratum corneum
Stratum basale

Which of the following is the immature connective tissue formed during the initial repair of the skin or oral mucosa?

reticular tissue
dense tissue
loose tissue
granulation tissue

The dorsum of the tongue has on it many papillae of different kinds. The kinds of papilla may include: 

Circumvallate, fibroform, fungiform, and fusiform
Fungiform, foliform, and circumvallate, filiate
Circumvallate, fungiform, filiform, and foliate
Circumvallate, filiform and fatty

Match the following six (6) terms with their descriptions

submucosa
Prickle layer
capillary plexus
keratin layer
papillary layer
granular layer

1 Has desmosome intercellular junctions

2 loose connective tissue with fingerlike projections for interdigitation

3 contains keratohyaline

4 contains loose connective tissue, adipose tissue or salivary glands and may or may not be present in the oral mucosa

5 between the dense layer and papillary layer of lamina propria

6 comparable to the superficial layer of nonkeratinized stratified squamous epithelium

Melanin is a pigment formed by melanocytes, derived from the neural crest cells, injecting cytoplasmic granules or inclusions called [blank1] into neighboring, newly formed
epithelial cells of the basal layer _______

Which tissue listed below is CLOSELY
associated with parakeratinized stratified squamous epithelium?

 marginal gingiva
attached ginigva
free gingival crest
junctional epithelium

The buccal mucosa may contain Fordyce's
spots, which are:

salivary gland tissue trapped in the lamina propria
deposits of sebum from misplaced sebaceous gland tissue
hyperkeratinized areas from localized tissue trauma
remnants of tonsillar tissue misplaced in the epithelium

Stippling is associated with which of the following?

cartilage
attached gingiva
buccal mucosa
lamina dura

The mucogingival junction is absent from which of the following surfaces?

mandibular lingual surface
maxillary buccal surface
maxillary palatal surface
mandibular facial surface

Which of the following areas of the oral cavity is categorized as a lining mucosa?

attached gingiva
hard palate
dorsal tongue surface
soft palate
palatal rugae

Which of the following statements concerning pigmentation in the oral cavity is CORRECT?

Melanin is formed by epithelial basal cells.

Pigmentation is most noticeable in the alveolar mucosa.

Number of melanocytes differs according to clinical appearances.

Pigmentation serves no known function in the oral cavity.

Melanocytes are derived from the mesodermal layer.

Which of the following mucosa is found on the dorsal and lateral surface of the tongue in the form of the lingual papillae?

buccal mucosa
labial mucosa
specialized mucosa
oral mucosa

Which of the following body of the tongue lesions appear first as red, then paler pink, and finally white patches?

black hairy tongue
bifid tongue
geographic tongue
ankyloglossia of the tongue

What type of cell listed below has prominent granules in the cytoplasm that form a keratin chemical precursor?

osteoblasts
fibroblasts
epithelial cells
leukocytes

Shows a marked transition between the epithelium of the attached gingiva
(masticatory) and that of the alveolar mucosa (lining) __________

Keratinized stratified squamous epithelium may readily be transformed into a  nonkeratinizing type of epithelium in response to frictional or chemical trauma in such case it undergose hyerpkeratinization.

True
False
True False

MULTIPLE ANSWERS POSSIBLE

In the oral cavity, masticatory mucosa always contains a(n):

keratinized layer without or with nuclei
distinct granular layer
prickle layer
underlying submucosa