Mouth and Tongue Flashcards
Which nerves supply the hard palate?
Greater palatine branch of V2
Nasopalatine branch of V2
Which nerve supplies the soft palate?
Lesser palatine branch of V2
Which artery supplies the hard palate?
Greater palatine artery (Maxillary branch)
Which artery supplies the soft palate?
Lesser palatine artery (Maxillary branch)
Name the 5 muscles associated with the soft palate?
Tensor veli palatini (tenses the soft palate)
Levator veli palatini
Palatoglossus (continues with extrinisic muscle of tongue)
Palatopharygeus
Muculae uvulae
What is the nerve innervation for tensor veli palatini?
V3 mandibular branch
What is the nerve innervation for levator veli palatini?
CN X - vagus
What is the nerve innervation for palatoglossus?
CN X - vagus
What is the nerve innervation for palatopharyngeus?
CN X - vagus
What is the nerve innervation for uvula musculae?
CN X - vagus
Which bone is commonly fractured during strangulation?
Hyoid bone
In the mouth name the anterior arch?
Palatoglossal arch (palatoglossus muscle)
In the mouth name the posterior arch?
Palatopharyngeal arch (palatopharyngeal muscle)
In the mouth which structure lies in-between the two arches?
Palatine tonsil
Which two muscles form the floor of the mouth?
Mylohyoid
Geniohyoid
What is the nerve innervation to mylohyoid?
V3 - Posterior branch
Where does mylohyoid attach within the mouth?
To the mylohyoid line on the mandible
What is the nerve innervation to geniohyoid?
C1
Where does geniohyoid attach within the mouth?
To the inferior geniohyoid tubercle on the mandible
Name the 4 extrinsic muscles of the tongue?
Genioglossus - largest
Hypoglossus - lateral to genioglossus
Styloglossus
Palatoglossus
What is the nerve innervation of genioglossus?
CN XII - hypoglossal
What is the nerve innervation of hypoglossus?
CN XII - hypoglossal
What is the nerve innervation of styloglossus?
CN XII - hypoglossal
Name the four structures that can be found within the space between hypoglossus and mylohyoid?
Lingual nerve
Lingual artery
Lingual vein
Submandibular duct
Name the four intrinsic muscles of the tongue?
Superior longitudinal
Inferior longitudinal
Transverse
Vertical
Where does the submandibular duct empty?
On either side of the frenulum
Name the three types of papillae?
Fungiform papillae
Filiform papillae
Circumvallet papillae
What nerve supplies the anterior 2/3’s of the tongue with taste?
Chorda tympani - CN VII
What nerve supplies general sensation to the anterior 2/3’s of the tongue?
Lingual nerve - posterior branch of V3
Which nerve supplies the posterior 1/3 of the tongue with taste and general sensation?
CN IX - glossopharyngeal
Name the two branches of the lingual artery which supply the tongue?
Dorsal branch
Deep sublingual branch
Where does CN IX - glossopharyngeal exit the cranium?
Jugular foreman
Where does CN XII - hypoglossal exit the cranium?
Hypoglossal canal
Which muscle does the submandibular duct wrap around and which nerve does the submandibular duct cross superiorly?
Mylohyoid
Lingual nerve
Parasympathetic pre-ganglionic fibres to the submandibular ganglion travel with which cranial nerve?
Chorda tympani - CN VII
Parasympathetic post-ganglionic fibres from the submandibular ganglion travel with which cranial nerve?
Lingual - Posterior branch of V3
Which muscles lie superior and inferior to mylohyoid?
Superior = Geniohyoid Inferior = Anterior belly of digastric
Which two nerves lie superficial to hypoglossus?
Lingual - posterior division of V3
Hypoglossal - CN (XII)
Which nerve wraps around the submandibular duct?
Lingual nerve - posterior division of V3
