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Oral Anatomy > Pharynx, soft palate, neck > Flashcards

Pharynx, soft palate, neck Flashcards

1
Q

Oropharynx-

A

Visible in back of mouth

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2
Q

Pharyngopharynx-

A

Below(inferior to) oropharynx

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3
Q

Pharynx functions

A

Respiratory-helps breathe
Digestive-mastication
Middle ear pressure

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4
Q

Muscles of soft palate forms roof of..

A

The oropharynx and laterally with the tongue

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5
Q

Soft palate muscle functions-

A

Speaking and swallowing

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6
Q

Soft palate innervation-

A

Pharyngeal plexus,

CN- 9,10,11

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7
Q

Palatoglossus muscle forms:

A

Palatoglossal arch

2 arches
*when someone says “ahh”

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8
Q

Palatopharyngeus muscle action-

A

Palate moves posterioinferior and posterior pharyngeal wall anterosuperior.
*closes off the nasopharynx to the oral pharynx

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9
Q

What closes the pharynx?

A

The palate

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10
Q

Levetor veli palatini muscle location

A

Superior to soft palate

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11
Q

Lavator veli palatini action-

A

Elevates the soft palate to contact posterior pharyngeal wall
*so we don’t have stuff go up nose

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12
Q

Levetor veli palatini innervation-

A

Pharyngeal plexus

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13
Q

Tensor veli palatini is active during:

A

All palatine movements

*busy muscle

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14
Q

Tensor veli palatini actions:

A

Opens Eustachian tube, tenses and depresses soft palate

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15
Q

Tensor veli palatini innervation

A

Tensor veli palatini nerve-branch of V3 mandibular division.

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16
Q

Uvula
O:
I:

A

O: posterior margin of soft palate
I: counterpart of opposite side

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17
Q

Uvula action

A

Shorten and broaden the uvula

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18
Q

Uvula innervation

A

Pharyngeal plexus

19
Q

Nasopharynx-

A

Superior to soft palate

20
Q

Constrictor muscles insertions, actions, and innervations:
Superior-
Middle-
Inferior-

A

Insertion-median pharyngeal raphe
Action- elevate pharynx, larynx
Innervation- pharyngeal plexus

21
Q

Stylopharyngeus
O:
I:

A

O: styloid process
I: lateral and posterior pharyngeal walls

22
Q

Stylopharyngeus action

A

Widens and elevates pharynx

23
Q

Stylopharyngeus innervation

A

CN 9

24
Q

Hyoid muscles assist in…

A

Swallowing and mastication

25
Q

The suprahyoid (above hyoid) group contains what 4 muscles

A

Digastric,
Mylohyoid,
Geniohyoid,
Stylohyoid

*all same action: elevate hyoid and depress mandible

26
Q 
Digastric muscle action-
#1 of suprahyoids
A

Elevate hyoid/tarynx, depress mand

*assist in swallowing

27
Q

Digastric innervation
Anterior belly-
Posterior belly-

A

Ant- V3

Post- 7

28
Q 
Mylohyoid forms:
#2 of suprahyoids
A

The floor of the mouth

29
Q

Mylohyoid
O:
I:

A

O: mylohyoid ridge
I: body of hyoid

30
Q

Mylohyoid action-

A

Elevate hyoid, depress mandible, elevate tongue, assist in swallowing

31
Q

Mylohyoid innervation

A

Mylohyoid nerve, V3

32
Q

Geniohyoid
O:
I:
#3 of suprahyoids

A

O: genial tubercules
I: body of hyoid

33
Q

Geniohyoid action

A

Elevate hyoid, depress mandible, assist in swallowing

34
Q

Geniohyoid innervation-

A

1st clavical nerve

35
Q

Stylohyoid- #4 suprahyoid
O:
I:

A

O: styloid process
I: body of hyoid

36
Q

Stylohyoid action

A

Elevate hyoid, depress mandible, assist in swallowing

37
Q

Stylohyoid innervation

A

Stylohyoid nerve, CN 7

38
Q

Infrahyoid muscles contain what 4:

A

Sternothyroid,
Sternohyoid,
Omohyoid,
Thyrohyoid

*actions: bring down(depress)

39
Q

Sternothyroid muscle, sternohyoid muscle, omohyoid muscle, thyrohyoid muscle:

Action-
Innervation-

*all same

A

Action- Depress hyoid cartilage

Innervation- 2nd and 3rd cervical nerves

40
Q

Sternohyoid
Action-
Innervation-

A

Action- depress hyoid

Innervation- 2nd and 3rd cervical nerve

41
Q

Sternocleidomastoid
Origin-
Insertion-

A

O: medial clavicle and superior and lateral sternum
I: mastoid process of temporal bone

*largest and most superficial muscles

42
Q

Sternocleidomastoid
Action-
Innervation-

A

A: moves head side to side

Innervation- 11

43
Q

Trapezius
O:
I:

A

O: occipital and posterior midline of cervical/thoracic spine
I: lateral 1/3 of clavicle/scapula

44
Q

Trapezius
action-
Innervation:

A

A:Elevates scapula and clavicle
*shrugs shoulders

Innervation: 11

Oral Anatomy (16 decks)

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