Oral cavity Flashcards Preview

A&P 3.1 > Oral cavity > Flashcards

Flashcards in Oral cavity Deck (36):
1

The oral cavity is also called the _______ cavity and opens into the __________.

Buccal cavity
Oropharynx

2

What kind of epithelium lines the oral cavity?

nonkeratinized stratified squamous epithelium

3

What are the boundaries of the oral cavity?

cheeks (buccinator muscle), had/soft palate, tongue, and lips

4

What is the vestibule of the oral cavity?

Area between checks and teeth (where your toothbrush goes)

5

What is the oral fissure?

Anterior opening between the lips

6

What is the posterior opening into throat?

Fauces

7

What are the two arches in the mouth? Which is anterior?

Anterior: Palatoglossal arch
Posterior: Palatopharyngeal arch

8

What is the uvula and what does it do?

A finger-like projection from the palatoglossal arch
Helps to keep food in the mouth until you’re ready to swallow

9

The arches of the mouth are _______ folds.

Muscular

10

________ ____ marks the beginning of pharynx

Palatopharyngeal arch

11

Where is the palatine tonsil?

Between the two arches

12

What is gingiva?

Gums around the teeth

13

What is a frenulum?

A small fold of tissue

14

What 3 frenulums does Beachy want us to know?

Lingual frenulum- Attached tongue to floor of mouth, in the middle
Superior/Inferior labial frenulum- attaches lip on inside

15

What are the two areas of the lips?

Cutaneous area- colored like the rest of the face (think under mustache)
Red area- Blood capillaries near the surface, hence red color
Hairless region, think lipstick area

16

The tongue is ______ muscle.

Skeletal

17

What are the intrinsic muscles of the tongue?

Contained completely within the tongue, alter the shape for speech and swallowing

18

What are the extrinsic muscles of the tongue and what do they do?

Hyoglossus, retracts tongue
Styloglossus, retracts tongue
Genioglossus, protrude tongue
Palatoglossus, bring down sides of tongue

19

Where are the lingual and pharyngeal tonsils?

Lingual- Just posterior to circumvallate papillae
Pharyngeal- In posterior nasopharynx

20

What are the three salivary glands?

Parotid
Submandibular
Sublingual

21

Where is the parotid gland?

Between skin and masseter muscle, anterior to ear

22

What is the largest salivary gland?

Parotid

23

What does the parotid produce?

Salivary amylase

24

What does salivary amylase do?

digests carbohydrates

25

What gland does the mumps attack?

Parotid salivary gland

26

Where is the parotid duct?

Passes over masseter, pierces buccinator, and opens near 2nd molar into mouth

27

Where is the submandibular gland? How big is it?

Located along medial aspect of mandibular body
Size of a walnut

28

What does the submandibular gland produce?

Produces some salivary amylase, some mucus, a mixed gland

29

Where is the duct of the submandibular gland?

Duct goes along lingual frenulum

30

What gland has a serous demilune?

Submandibular

31

What is a serous demilune?

A crescent-shaped area of serous (enzyme-secreting) cells
A “cap” on top of acinus that secretes enzymes into lumen

32

What does serous demilune indicate?

A mixed gland

33

Where is the sublingual gland?

Anterior to submandibular gland under the tongue

34

What does the sublingual gland secrete? How big is it?

Secretes mostly mucus, is the size of an almond

35

What are the 2 mixed salivary glands?

Sublingual
Submandibular

36

How does product get from the sublingual gland to the mouth?

Opens via 10-12 ducts into the floor of the mouth