Oral and Nasal Cavities Flashcards
What is the name given to the space in the oral cavity between the teeth and cheeks/lips?
The vestibule
Between which X2 arches do the tonsils sit?
Which is anterior and which is posterior?
Anteriorly = palatoglossal arch
TONSILS
Posteriorly = palatopharyngeal arch
Where are the adenoids located?
Behind the soft palate where the nasopharynx meets the oropharynx
Which X2 muscles pull the soft palate down when chewing to allow swallowing?
Palatoglossus and palatooharyngeal
Which X2 muscles pull the soft palate up when swallowing to block off the nasal cavity?
Levator palati and tensor palati
What does the buccinator muscle do and which nerve supplies this?
Contracts to keep food out of the vestibule
Facial nerve
Which main X2 muscles makes up the floor of the oral cavity?
Which nerve innervates these?
Mylohyoid and the anterior belly of digastric
The mandibular division of the trigeminal
Which other X2 muscle (non-major) are included in the floor of the oral cavity?
Where do they connect from/to?
Geniohyoid (bend of mandible to hyoid bone)
Genioglossus (bend of mandible to tongue)
What X2 landmarks does the parotid gland sit between?
The mastoid process and the ramus of the mandible
Which muscle does the parotid gland pierce to enter the oral cavity?
The buccintor
What is the name of the circular muscles around the:
1) eyes
2) mouth
1) obicularis oculi
2) obiculris oris
Where does the masseter muscle sit?
It covers the buccinator muscle anteriorly
What is the name of the facial nerve branch which deals with taste?
Chorda tympani
Where does the lingual artery arise from?
It is a branch of the external carotid artery.
What is the lymphatic drainage of the tongue?
Sub-mental nodes - sternocleidomastoid nodes
