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BDS2 Anatomy > Oral cavity 3 > Flashcards

Oral cavity 3 Flashcards

1
Q

Muscle?

A

Buccinator

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2
Q

What is the motor innervation of the buccinator muscle?

A

Buccal branch of facial nerve

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3
Q

What is the sensory innervation of the buccinator muscle?

A

Buccal branch of mandibular nerve

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4
Q

What is the function of the buccinator?

A

Holds cheeks against the alveolar arches
and keeps food between the teeth when chewing
Whistling
Smiling

Neonates use it to suckle

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5
Q
A
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6
Q
A
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7
Q

What are the 2 parts of the palate?

A

Hard and soft

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8
Q

What does the hard palate form?

A

The floor of the nasal cavity

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9
Q

What structures form the palate?

A

Palatine processes of maxillae (front)

Horizontal plates of palatine bones (back)

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10
Q

What palate lies anteriorly and posteriorly?

A

Anteriorly = hard palate

Posteriorly = soft palate

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11
Q

what surface covers the hard palate?

A

Mucoperiosteum

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12
Q

does the hard palate have submucosa?

A

No

Difficult to inject

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13
Q
A

Ridges

Palatal rugae

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14
Q

What is the role of palatal rugae?

A

Help with mastication and speech

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15
Q

Where does the soft palate attach to the hard palate?

A

attached to posterior border of hard palate

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16
Q

What covers the soft palate?

A

Covered on it upper and lower surfaces by mucous membrane

17
Q
A
18
Q

What is the aponeurosis?

A

Fibrous sheet

flat sheets of connective tissue in your body that are similar to tendons

19
Q

What does the palatine aponeurosis attach to?

A

the posterior border of hard palate

20
Q

What does the palatine aponeurosis give origin and insertion to?

A

The palatine muscles

21
Q
A

Palatine aponeurosis

22
Q

Muscles of palate?

A
23
Q

What is the action of the tensor veil palatini?

A

Tenses soft palate

24
Q

what is the role of the levator veli palatini?

A

Raise soft palate

25
Q

What is the role of the muscular uvulae?

A

Elevates uvula

26
Q

What is the palatine aponeurosis an extension of?

A

The expanded tendon of the tensor veli palatini

27
Q

What does the palatine aponeurosis split to enclose?

A

The muscles uvulae

28
Q

What is the action of the palatoglossus?

A

Pulls root of tongue upward, narrowing oropharyngeal isthmus

29
Q

What is the action of the palatopharyngeus?

A

Elevates wall of pharynx

30
Q
A

BDS2 Anatomy (32 decks)

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