Pharynx, soft palate, neck Flashcards
(44 cards)
Oropharynx-
Visible in back of mouth
Pharyngopharynx-
Below(inferior to) oropharynx
Pharynx functions
Respiratory-helps breathe
Digestive-mastication
Middle ear pressure
Muscles of soft palate forms roof of..
The oropharynx and laterally with the tongue
Soft palate muscle functions-
Speaking and swallowing
Soft palate innervation-
Pharyngeal plexus,
CN- 9,10,11
Palatoglossus muscle forms:
Palatoglossal arch
2 arches
*when someone says “ahh”
Palatopharyngeus muscle action-
Palate moves posterioinferior and posterior pharyngeal wall anterosuperior.
*closes off the nasopharynx to the oral pharynx
What closes the pharynx?
The palate
Levetor veli palatini muscle location
Superior to soft palate
Lavator veli palatini action-
Elevates the soft palate to contact posterior pharyngeal wall
*so we don’t have stuff go up nose
Levetor veli palatini innervation-
Pharyngeal plexus
Tensor veli palatini is active during:
All palatine movements
*busy muscle
Tensor veli palatini actions:
Opens Eustachian tube, tenses and depresses soft palate
Tensor veli palatini innervation
Tensor veli palatini nerve-branch of V3 mandibular division.
Uvula
O:
I:
O: posterior margin of soft palate
I: counterpart of opposite side
Uvula action
Shorten and broaden the uvula
Uvula innervation
Pharyngeal plexus
Nasopharynx-
Superior to soft palate
Constrictor muscles insertions, actions, and innervations:
Superior-
Middle-
Inferior-
Insertion-median pharyngeal raphe
Action- elevate pharynx, larynx
Innervation- pharyngeal plexus
Stylopharyngeus
O:
I:
O: styloid process
I: lateral and posterior pharyngeal walls
Stylopharyngeus action
Widens and elevates pharynx
Stylopharyngeus innervation
CN 9
Hyoid muscles assist in…
Swallowing and mastication