ENT Flashcards
What veins can be seen on the ventral surface of the tongue?
Right lingual and left lingual
What is the frenulum of the tongue?
Stringy part underneath tongue
Name the three pairs of major salivary glands?
- Parotid
- Submandibular
- Sublingual
Is the parotid gland normally palpable?
No
Is the submandibular gland normally palpable?
Yes
What muscle does the parotid duct cross before medially piercing through buccinator then opening onto the parotid papilla of teh buccal mucosa?
Masseter
Where does the submandibular duct open up into?
The sublingual papilla
Where are ducts of the sublingual gland found?
On the sublingual fold in the floor of the mouth
Name a muscle of the cheek?
Buccinator
What nerve supplies the sublingual salivary gland?
CN VII
What cranial nerve gives parasympathetic innervation (secretomotor) to the parotid gland?
IX - glossopharyngeal
What nerve does IX hitch a ride on when supplying the parotid gland?
V3
What is the general sensory and special sensory of the anterior 2/3rd of the tongue?
General sensory = CN V3
Special sensory = CN VII
What is the general and sensory supply of the posterior 1/3rd of the tongue?
CN IX
What is the origin of teh thyroid gland which is at the apex of terminal groove?
Foramen caecum
What taste buds are present just anterior to the foramen caecum?
Vallate papillae
How do thyroid swellings move when swallowing?
Superiorly then inferiorly due to attachment to the larynx
What group of muscles of the tongue change the position of it during mastication, swallowing and speech?
Extrinsic muscles
Name the four muscles of the tongue?
Palatoglossus
Styloglossus
Hyoglossus
Genioglossus
What group of muscles modify the shape of the tongue?
Intrinsic muscles of the tongue
What nerve descends in the neck, lateral to the carotid sheath?
Hypoglossal
How do you test the function of the facial nerves?
Ask patient to stick tongue out straight - abnormal will drift to bad side
What artery supplies the tongue?
Right lingual artery - XII passes anteriorly through the neck lateral to the loop of the lingual artery
What two structures make up the hard palate?
Palatine processes of maxillae (anteriorly) and palatine bones
What part of the sphenoid bone is part of the posterior hard palate?
Medial pterygoid plate of spenoid bone
How many muscles of the soft palate are there?
5