Mouth and Tongue
Terms
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copy deck
- frenulum
- connection of floor of mouth to tongue
- sublingual caruncles
- openings of the submandibular ducts, located on either side of the frenulum of the tongue
- the mobility of the tongue as a whole is accomplished by its suspension from three well-separated bilateral attachments. what are they?
-
the mandible via genial tubercles
the styloid process
the hyoid bone - three principle extrinsic muscles of the tongue
-
genioglossus
styloglossus
hyoglossus - genioglossus fxn
- protruder of the tongue
- styloglossus fxn
- retracts and elevates the tongue
- hyoglossus fxn
- flattens the tongue and draws it down on both sides
- palatoglossus fxn
- attaches the tongue to the palate, pulls the tongue and soft palate together, squeezing the bolus back into the oropharynx in the process of swallowing
- what would happen to the tongue in a lesion of the hypoglossal N?
- protrusion of the tongue will show a deviation toward the side of the lesion
- what divides the tongue into the anterior 2/3 and posterior 1/3?
- vallate papillae