Oral Cavity Flashcards
Name the intrinsic muscles of the tongue
Longitudinal
Transverse
Vertical
Role of the instrinsic muscles?
Change shape of tongue
What nerve innervates the intrinsic muscles
Hypoglossal
What are the extrinsic muscles of the tongue?
Palatoglossus
Hyoglossus
Styloglossus
Genioglossus
What nerve innervates the palatoglossus?
Vagus
What nerve innervates the hyglossus?
Hypoglossal
What nerve innervates the styloglossus?
Hypoglossal
What nerve innervates the genioglossus?
Hypoglossal
What is the arterial supply to the tongue and where does this vessel originate from?
Lingual artery - External carotid
What is the venous drainage of the tongue and where does this drain into?
Lingual vein - internal jugular vein 9
Where does the lingual nerve arise from?
Post div of CNVc
What does the lingual nerve supply?
general sensation to the tongue
Where does taste sensation arise from?
Chorda typmani ant 2/3
Glosssopharangeal nerve - post 1/3
Where does the chorda tympani arise from?
Facial nerve
Where does the glossopharngeal nerve emerge from?
Medulla oblongata
Where does the glossopharyngeal nerve descend down the neck?
Internal and external carotid artery
Position of hypoglossal nerve?
Crosses both internal and external carotid arteries
Passes ant to the facial artery
What are the 2 lobes of the submandibular gland and what separates them?
Superficial and deep
Mylohyoid muscle
What is the smallest salivary gland?
Sub-lingual
What are the submandibular and sublingual glands innervated by?
Chorda tympani
