L6 Oral, Nasal Cavity & Paranasal Sinuses Flashcards
Oral cavity
Roof and floor
Hard and soft palate
Innervation
What main nerve innervates the hard palate
— three branch?
Trigeminal maxillary division V2 — because it’s part of the maxillary bone
— nasopalatine
— greater palatine
— lesser palatine
Soft palate : tensor veil palatini muscle
Levator veil palatini muscle
Just learn their actions
Levator veli palatini
Tensor veli palatini
Levator veli palatini — elevates soft palate
Tensor veli palatini — tenses softa palate
Related muscles 643
Tensor innervated by?
All the rest?
Tensor innervated by? Trigeminal V3
which makes sense because this is the mouth! Therefore, mandible division
All the rest? vagus via pharyngeal plexus
Submandibular duct and lingual nerve
lingual nerve is a branch of?
Trigeminal V3 mandibular
Lingual nerve is a branch of?
Trigeminal V3
Submandibular ganglion (look this up)
Glossopharyngeal nerve CN IX
Runs laterally to which muscle?
Dives deep in between which two muscles?
Runs laterally to which muscle? stylopharyngeus muscle
Dives deep in between which two muscles? superior and middle constrictor
Hypoglossal nerve CN XII
Tongue
Anterior 2/3 innervated by?
Posterior 1/3 innervated by?
Anterior 2/3 innervated by? facial VII
Posterior 1/3 innervated by? glossopharngeal IX
Sensory innvervation of the tongue
Tongue — intrinsic muscles
Which nerve?
Hypoglossal XII