Histology of the Oral Cavity and Salivary Glands Flashcards Preview

GI Exam 1 > Histology of the Oral Cavity and Salivary Glands > Flashcards

Flashcards in Histology of the Oral Cavity and Salivary Glands Deck (31):
1

What are the four functions of the alimentary mucosa?

1.) Secretion
2.) Absorption
3.) Barrier
4.) Immunologic protection

2

What is the vestibule in the oral cavity?

The space between the teeth and the lips/cheeks

3

What are the borders of the cavity proper?

Superior: hard and soft palates
Inferior: tongue
Posterior: entrance to the oropharynx
Anterior: teeth

4

What does the oral mucosa that lines the oral cavity consist of?

1.) Masticatory mucosa
2.) Lining mucosa
3.) Specialized mucosa

5

What does masticatory mucosa consist of?

Gingiva and hard palate

6

What does lining mucosa consist of?

Layers of lips, cheeks, alveolar mucosal surfaces, floor of mouth, inferior surface of the tongue and soft palate

7

What does lining mucosa cover?

1.) Striated muscle
2.) Bone
3.) Glands

8

What is thicker: keratinized or non-keratinized lining epithelium?

Non-keratinized lining epithelium

9

What does the non-keratinized lining epithelium consist of?

Stratum basale: single layer
Stratum spinosum: several layers
Stratum superficiale: multilayered

10

What is the lamina propria?

Layer underlying the lining mucosa with a thick papillary layer of loose connective tissue containing blood vessels and nerves

11

Where is the specialized mucosa found?

On the dorsal surface of the tongue

12

What is the role of specialized mucosa?

Associated with the sensation of taste

13

What does the specialized mucosa contain?

Papillae and taste buds responsible for generating the chemical sensation of taste

14

What are the four types of papillae?

Circumvallate
Fungiform
Filliform
Foliate

15

What is the only papillae to not contain taste buds?

Filliform

16

How many primary teeth do we have?

20 teeth 8 incisors 4 canine 8 molars

17

How many secondary teeth do we have?

32 teeth 8 incisors 4 canine 8 premolars 12 molars

18

What are the three layers that make up teeth?

Enamel
Dentin
Cementum

19

How is enamel formed?

Initially secreted by secretor-stage ameloblasts and then maturation-stage ameloblasts

20

What is enamel mostly consist of?

Calcium hydroxyapatite

21

What is dentin?

Calcified material deep to the enamel and cementum

22

What creates dentin?

Secreted by odontoblasts

23

Where is cementum found?

Covering the tooth's root

24

What are parakeratinized cells?

Cells that are not fully keratinized yet and have a nuclei

25

What are the three salivary glands?

Parotid
Submandibular
Sublingual

26

What are acini?

Cells that produce fluid

27

What color do mucous secreting cells stain?

Light pink

28

What color do fluid secreting cells stain?

Dark pink

29

What type of gland is the parotid gland?

Serous secreting

30

Submandibular gland:

Both serous and mucous secreting

31

Sublingual gland:

Mucus fluid secreting