H&N 4: Oral & Nasal Cavities #2 Flashcards
What is function of mandibular nerve?
- provides sensory supply to lower part of mouth, floor + ant. part of tongue + teeth
What is function of lingual nerve?
- provides general sensation to ant. 2/3 of tongue
- also supplies floor of mouth
What is the origin + function of chorda tympani?
- from facial nerve
- brings taste fibres to ant. 2/3 of tongue
What is function of inf. alveolar nerve?
supply lower teeth
What is mental branch?
supply skin of chin
What is the nerve to mylohyoid?
motor branch
What is the function of the maxillary nerve branches?
supplies mucous mem of roof of oral cavity
What is function of branches of mandibular div (lingual nerve)?
- supplies lat. walls + floor of mucous mem of oral cavity
- supplies ant. belly of digastric + mylohyoid?
What is function of facial nerve?
supplies muscle in lat. walls of oral cavity
What nerve supplies geniohyoid?
C1 fibres
What are teeth supplied by?
- alveolar branches of maxillary (upper)
- mandibular nerve (lower)
Where does the tongue lie?
- ant. 2/3 in oral cavity
- post. 1/3 in oropharynx
What is the tongue + its function?
- mobile, muscular organ (intrinsic + extrinsic) covered by mucous mem
- involved with mastication, taste, deglutiton (swallowing), articulation + oral cleansing
Where are taste fibres located?
- fungiform (keratinised) + vallate papillae
What is the function of the vallate papillae?
joins ant. + post. part of tongue
What is function of glossopharygeal?
post 1/3 taste + sensation