Deck 14: Oral Mucosa

Question 1

The oral epithelium of an older individual is ____________.

A) thin
B) moist
C) resilient
D) texturized

Answer 1

thin

Question 2

Lining mucosa covers which structure?

A) Hard palate
B) Alveolar ridges
C) Floor of the mouth
D) Surface of the tongue

Answer 2

Floor of the mouth

Question 3

Masticatory mucosa is found on the ____________.

A) lips
B) soft palate
C) alveolar ridges
D) surface of the tongue

Answer 3

alveolar ridges

Question 4

Which papillae do not house taste buds?

A) Foliate
B) Filiform
C) Fungiform
D) Circumvallate

Question 5

Cellular activity __________ and fibrosis __________ with age.

A) decreases, increases
B) increases, decreases
C) plateaus, increases
D) decreases, plateaus

Question 6

Melanocytes inject the pigment melanin into neighboring ___________.

A) leukocytes
B) lymphocytes
C) keratinocytes
D) nonkeratinocytes

Question 7

Which of the following is characterized by thin,nonkeratinized epithelium?

A) Free gingiva
B) Median raphe
C) Interdental col
D) Filiform papillae

Question 8

Organize the layers of masticatory mucosa from the most superficial layer to the most internal.

A) Stratum corneum, stratum granulosum, stratum spinosum, basal lamina
B) Stratum spinosum, basal lamina, stratum corneum, stratum granulosum
C) Basal lamina, stratum spinosum, stratum granulosum, stratum corneum
D) Stratum granulosum, stratum corneum, basal lamina, stratum spinosum

Question 9

Nonkeratinocytes constitute about ______ of the mucosal cell population.

A) 5%
B) 10%
C) 20%
D) 50%

Question 10

____________ inject melanosomes into the basal cells of the gingival epithelium.

A) Melanocytes
B) Lymphocytes
C) Merkel cells
D) Langerhans cells

Question 11

Oral nerve endings are most highly concentrated ________ of the oral cavity.

A) on the roof
B) on the floor
C) in the anterior regions
D) in the posterior regions

Question 12

All epithelial cells function with desmosomes.

Question 13

Lymphocytes,leukocytes,and mast cells are associated with ______________.

A) health
B) halitosis
C) necrosis
D) inflammation

Question 14

The lamina propria consists of which two layers?

A) Granular and surface
B) Papillary and reticular
C) Basal and intermediate stratum
D) Hemidesmosomes and stratum granulosum

Question 15

The three types of nonkeratinized cells are Langerhans,Merkel,and Fordyce.

Question 16

Eleidin,a transparent protein,is found in the vermillion border of the lips.

Question 17

Which papillae lie in a V-shaped sulcus between the base and body of the tongue?

A) Foliate
B) Filiform
C) Fungiform
D) Circumvallate

Question 18

Oval or polygonal cells differentiate which layer of mucosa?

A) Basal lamina
B) Stratum corneum
C) Stratum spinosum
D) Stratum granulosum

Question 19

Which of the following best describes the shape of the col between the anterior teeth?

A) Flat
B) Concave
C) Sharp peak
D) Slightly convex

Question 20

Which of the following best defines hemidesmosomes?

A) Discoid cells anchored by tonofibrils
B) Sebaceous glands located at the angles of the mouth
C) Minute disks that attach basal cells to the basal lamina
D) Cuboidal cells providing a basal layer for lining mucosa

Question 21

Name the five taste modalities of the oral cavity.

Question 22

Lymphocytes and leukocytes appear most often beneath the __________ epithelium

Question 23

Ectopic sebaceous glands at the angle of the mouth are called ______ _______.

Question 24

Name two changes in oral mucosa that happen as a result of age.

Question 25

Merkel cells function as ____________ receptors.

Question 26

Taste buds are derived from the surrounding epithelium and are not associated with nerve endings of the tongue.

Question 27

As oral mucosa ages,it appears less moist.

Question 28

Hemidesmosomes attach the lamina propria to the stratum basal.

Question 29

Nonkeratinocytes are also known as __________ cells.

Question 30

Von Ebner glands are serous salivary glands with ducts that empty into the trough surrounding the foliate papillae.

Question 31

Rugae of the hard palate are ridges of tissue that function during mastication.

Question 32

Name the four types of papillae found on the tongue.

Question 33

Langerhans cells are restricted to the stratum spinosum.

Question 34

During inflammation,lymphocytes and leukocytes can migrate into the gingival epithelium.