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A&P 3.1 > Oral cavity > Flashcards

Oral cavity Flashcards

1
Q

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

A

Buccal cavity

Oropharynx

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2
Q

What kind of epithelium lines the oral cavity?

A

nonkeratinized stratified squamous epithelium

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3
Q

What are the boundaries of the oral cavity?

A

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

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4
Q

What is the vestibule of the oral cavity?

A

Area between checks and teeth (where your toothbrush goes)

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5
Q

What is the oral fissure?

A

Anterior opening between the lips

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6
Q

What is the posterior opening into throat?

A

Fauces

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7
Q

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

A

Anterior: Palatoglossal arch
Posterior: Palatopharyngeal arch

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8
Q

What is the uvula and what does it do?

A

A finger-like projection from the palatoglossal arch

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

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9
Q

The arches of the mouth are _______ folds.

A

Muscular

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10
Q

________ ____ marks the beginning of pharynx

A

Palatopharyngeal arch

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11
Q

Where is the palatine tonsil?

A

Between the two arches

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12
Q

What is gingiva?

A

Gums around the teeth

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13
Q

What is a frenulum?

A

A small fold of tissue

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14
Q

What 3 frenulums does Beachy want us to know?

A

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

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15
Q

What are the two areas of the lips?

A

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

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16
Q

The tongue is ______ muscle.

A

Skeletal

17
Q

What are the intrinsic muscles of the tongue?

A

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

18
Q

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

A

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

19
Q

Where are the lingual and pharyngeal tonsils?

A

Lingual- Just posterior to circumvallate papillae

Pharyngeal- In posterior nasopharynx

20
Q

What are the three salivary glands?

A

Parotid
Submandibular
Sublingual

21
Q

Where is the parotid gland?

A

Between skin and masseter muscle, anterior to ear

22
Q

What is the largest salivary gland?

A

Parotid

23
Q

What does the parotid produce?

A

Salivary amylase

24
Q

What does salivary amylase do?

A

digests carbohydrates

25
Q

What gland does the mumps attack?

A

Parotid salivary gland

26
Q

Where is the parotid duct?

A

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

27
Q

Where is the submandibular gland? How big is it?

A

Located along medial aspect of mandibular body

Size of a walnut

28
Q

What does the submandibular gland produce?

A

Produces some salivary amylase, some mucus, a mixed gland

29
Q

Where is the duct of the submandibular gland?

A

Duct goes along lingual frenulum

30
Q

What gland has a serous demilune?

A

Submandibular

31
Q

What is a serous demilune?

A

A crescent-shaped area of serous (enzyme-secreting) cells

A “cap” on top of acinus that secretes enzymes into lumen

32
Q

What does serous demilune indicate?

A

A mixed gland

33
Q

Where is the sublingual gland?

A

Anterior to submandibular gland under the tongue

34
Q

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

A

Secretes mostly mucus, is the size of an almond

35
Q

What are the 2 mixed salivary glands?

A

Sublingual

Submandibular

36
Q

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

A

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

A&P 3.1 (20 decks)

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