Palate Flashcards
Which mm form the palatine aponeurosis?
tensor veli palatini m and palatoglossus m
- add strength to ant 1/3 soft palate
Where is tensor Veli Palatini located in relation to the choanae?
lateral
Where does the aponeurosis attach?
ant to margin of hard palate but unattached posteriorly
Clinical test for CN X
ask patient to say ah and soft palate should elevate evenly at midline
Where is levator Veli Palatini m located in relation to tensor Veli Palatini m?
posteromedial
What is the arterial supply of the palate?
- descending palatine a gives rise to greater and lesser palatine aa
- ascending palatine a is a branch of facial a
- palatine a is br of ascending pharyngeal a
What do greater and lesser palatine aa supply?
greater = anterior (hard) palate lesser = posterior (soft) palate
What is the path of ascending palatine a?
ascends along external surface of pharynx, loops medially on top of superior pharyngeal constrictor m and follows levator Veli Palatini to soft palate (palatine a follows same course)
What is the venous drainage of palate?
pterygoid and pharyngeal plexuses or directly into facial v
Where is the lymphatic drainage of the palate?
to deep cervical nodes (unilaterally)
Where do the nerves supplying the palate arise?
CN V2
Where does nasopalatine n run?
supplies tip of palate thru incisive canal
- runs medially in nasal cavity across septum and anteriorly to incisive canal to supply gingiva and mucosa adjacent to incisors and canine
Where are the palatine tonsils located?
bilaterally in oropharynx in tonsillar bed between palatoglossal arch and palatopharyngeal arch between soft palate and lingual tonsils
Which n is in danger during tonsillectomy?
CN IX, lies on lateral pharyngeal wall
What commonly causes bleeding from tonsillectomy?
paratonsillar v
