✅Oral And Nasal Cavity Flashcards
What is there above the nasal cavity?
Olfactory receptors
What does the nasal cavity include, making it complicated?
Septum and nasal conchae
What does the complicated nasal cavity do?
Warms up and moistens the inspired air
What burdens the lungs?
Air going through the oral cavity as it cannot become warm or moist
What is the nasal septum composed of?
Front- cartilage
Back- bone
What do paranasal sinuses reduce?
The weight of ones head and enable good nasal voice
What is the maxillary sinus most likely to do?
Have inflammation (maxillary sinusitis)
Where are the maxillary sinuses?
Cheeks
What are the 4 sinuses?
Maxillary
Frontal
Ethmoid
Sphenoidal
Why does the maxillary sinus have inflammation?
Because its top is connected to the nasal cavity not the bottom.
What happens to dust coming into the nasal cavity?
It is stuck to the nasal secretion which is swallowed together with saliva
Pharynx can be divided into what 3 subsections?
Nasopharynx
Oropharynx
Laryngopharynx
What is the air passage process?
Nasal cavity -> nasopharynx -> oropharynx -> larynx -> trachea
What can be seen with an open mouth and what needs a mirror?
Open mouth= oropharynx
Mirror= nasopharynx and laryngopharynx
Where is the tonsil placed?
Between the oral cavity and oropharynx
How does tonsillitis occur?
Because the tonsil eats the infectious viri that come to pharynx
What is the auditory tube?
A tube connecting the nasopharynx with the middle ear
What does the auditory tube equal?
eustachian tube = pharyngotympanic tube
Why does your ear pop when on a plane?
The decrease in atmospheric pressure causes tympanic membrane to protrude outward.
What does the auditory tube link?
The wall of the nasopharynx to the ear
When does the auditory tube open?
During swallowing and yawning
What does the velum attach to?
The bones of hard palate and muscles of pharynx
Give technical names of what the velum connects to
Palatal tensor (Tensor veli palatini)
Palatal levator (Levator veli palatini)
Palatopharyngeus
Palatoglossus/glossop alatine/palatoglossal
What does the oral cavity include?
Teeth, tongue and palate
What does the palate divide?
Nasal and oral cavities
What is the posterior end of the palate called?
Uvula
What is the anterior part of the palate called?
The hard palate : consists of bones
What is the posterior part of the palate called?
The soft palate consisting of muscles
How do we snore?
Vibration of the soft palate
What is located between the two arches that come below the soft palate?
The tonsils
Describe the hard palate
Bone with mucous membrane
Thicker at front and sides, thinner in the middle
If the hard palate is rugae what does that mean?
It is wrinkled membrane
What are the two bones of the hard palate?
Palatine process (maxilla) and horizontal plates of the palatine bone
What is the palatine raphe?
Raised ridge
What connects the jaw?
Ligament of Temporomandibular joint
Articular Disc of Temporomandibular joint
What are the muscles used in jaw movement?
Pterygoid
Digrastic
Temporalis
Masseter
What does the geniohyoid do to the jaw?
Pulls it down (open)
What are the break downs of the 32 permanent teeth?
8 incisors
4 canines
8 premolars
12 molars
Teeth are symmetric left and right as well as up and down.
What are the 4 digits to remember?
2123
What are teeth embedded in the mandible and maxilla surrounded by?
Gingiva
What is occlusion with regards to teeth?
Relationship between opposing teeth
What is malocclusion with regards to teeth?
Teeth occlude different to normal
What is class I malocclusion?
Overcrowding & misalignment
What is class II malocclusion?
Maxillary arch is further forward that mandibular arch
What is class III?
Mandibular arch is further forward than maxillary arch
