Pharynx, soft palate, neck Flashcards Preview

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Flashcards in Pharynx, soft palate, neck Deck (44)
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1

Oropharynx-

Visible in back of mouth

2

Pharyngopharynx-

Below(inferior to) oropharynx

3

Pharynx functions

Respiratory-helps breathe
Digestive-mastication
Middle ear pressure

4

Muscles of soft palate forms roof of..

The oropharynx and laterally with the tongue

5

Soft palate muscle functions-

Speaking and swallowing

6

Soft palate innervation-

Pharyngeal plexus,
CN- 9,10,11

7

Palatoglossus muscle forms:

Palatoglossal arch

2 arches
*when someone says "ahh"

8

Palatopharyngeus muscle action-

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

9

What closes the pharynx?

The palate

10

Levetor veli palatini muscle location

Superior to soft palate

11

Lavator veli palatini action-

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

12

Levetor veli palatini innervation-

Pharyngeal plexus

13

Tensor veli palatini is active during:

All palatine movements

*busy muscle

14

Tensor veli palatini actions:

Opens Eustachian tube, tenses and depresses soft palate

15

Tensor veli palatini innervation

Tensor veli palatini nerve-branch of V3 mandibular division.

16

Uvula
O:
I:

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

17

Uvula action

Shorten and broaden the uvula

18

Uvula innervation

Pharyngeal plexus

19

Nasopharynx-

Superior to soft palate

20

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

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

21

Stylopharyngeus
O:
I:

O: styloid process
I: lateral and posterior pharyngeal walls

22

Stylopharyngeus action

Widens and elevates pharynx

23

Stylopharyngeus innervation

CN 9

24

Hyoid muscles assist in...

Swallowing and mastication

25

The suprahyoid (above hyoid) group contains what 4 muscles

Digastric,
Mylohyoid,
Geniohyoid,
Stylohyoid

*all same action: elevate hyoid and depress mandible

26

Digastric muscle action-
#1 of suprahyoids

Elevate hyoid/tarynx, depress mand

*assist in swallowing

27

Digastric innervation
Anterior belly-
Posterior belly-

Ant- V3
Post- 7

28

Mylohyoid forms:
#2 of suprahyoids

The floor of the mouth

29

Mylohyoid
O:
I:

O: mylohyoid ridge
I: body of hyoid

30

Mylohyoid action-

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