Oral cavity

Question 1

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

Answer 1

Buccal cavity

Oropharynx

Question 2

What kind of epithelium lines the oral cavity?

Answer 2

nonkeratinized stratified squamous epithelium

Question 3

What are the boundaries of the oral cavity?

Answer 3

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

Question 4

What is the vestibule of the oral cavity?

Answer 4

Area between checks and teeth (where your toothbrush goes)

Question 5

What is the oral fissure?

Answer 5

Anterior opening between the lips

Question 6

What is the posterior opening into throat?

Answer 6

Fauces

Question 7

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

Answer 7

Anterior: Palatoglossal arch
Posterior: Palatopharyngeal arch

Question 8

What is the uvula and what does it do?

Answer 8

A finger-like projection from the palatoglossal arch

Helps to keep food in the mouth until you’re ready to swallow

Question 9

The arches of the mouth are _______ folds.

Answer 9

Muscular

Question 10

________ ____ marks the beginning of pharynx

Answer 10

Palatopharyngeal arch

Question 11

Where is the palatine tonsil?

Answer 11

Between the two arches

Question 12

What is gingiva?

Answer 12

Gums around the teeth

Question 13

What is a frenulum?

Answer 13

A small fold of tissue

Question 14

What 3 frenulums does Beachy want us to know?

Answer 14

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

Question 15

What are the two areas of the lips?

Answer 15

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

Question 16

The tongue is ______ muscle.

Answer 16

Skeletal

Question 17

What are the intrinsic muscles of the tongue?

Answer 17

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

Question 18

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

Answer 18

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

Question 19

Where are the lingual and pharyngeal tonsils?

Answer 19

Lingual- Just posterior to circumvallate papillae

Pharyngeal- In posterior nasopharynx

Question 20

What are the three salivary glands?

Answer 20

Parotid
Submandibular
Sublingual

Question 21

Where is the parotid gland?

Answer 21

Between skin and masseter muscle, anterior to ear

Question 22

What is the largest salivary gland?

Answer 22

Parotid

Question 23

What does the parotid produce?

Answer 23

Salivary amylase

Question 24

What does salivary amylase do?

Answer 24

digests carbohydrates

Question 25

What gland does the mumps attack?

Answer 25

Parotid salivary gland

Question 26

Where is the parotid duct?

Answer 26

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

Question 27

Where is the submandibular gland? How big is it?

Answer 27

Located along medial aspect of mandibular body | Size of a walnut

Question 28

What does the submandibular gland produce?

Answer 28

Produces some salivary amylase, some mucus, a mixed gland

Question 29

Where is the duct of the submandibular gland?

Answer 29

Duct goes along lingual frenulum

Question 30

What gland has a serous demilune?

Answer 30

Submandibular

Question 31

What is a serous demilune?

Answer 31

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

Question 32

What does serous demilune indicate?

Answer 32

A mixed gland

Question 33

Where is the sublingual gland?

Answer 33

Anterior to submandibular gland under the tongue

Question 34

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

Answer 34

Secretes mostly mucus, is the size of an almond

Question 35

What are the 2 mixed salivary glands?

Answer 35

Sublingual | Submandibular

Question 36

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

Answer 36

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