Facial skeleton Flashcards
(30 cards)
How many bones make up the facial skeleton
16
What can the facial skeleton be split into
Thirds:
Upper facial skeleton
Middle facial skeleton
Lower facial skeleton
In which third are most facial bones found
Middle facial skeleton
What is the upper facial skeleton made up of
Frontal bone
What is the lower facial skeleton made up of
Mandible
Name the unpaired facial bones
- Frontal
- Mandible
- Ethmoid
- Vomer
Name the paired bones of the facial skeleton
- Zygomatic
- Lacrimal
- Nasal
- Maxilla
- Inferior nasal conchae
- Palatine
How do we classify facial fractures
Using le Fort fracture patterns
What is Le fort fracture patterns split into
3 categories:
I, II, III
What is a level I Le Fort fracture pattern
Transmaxillary fracture
What is a level II Le Fort fracture
A pyramidal fracture going over the nose
What is a level III Le Fort fracture
A craniofacial dissociation
Name the most common site where the mandible fractures
Condylar process accounting for 36% of mandible fractures
Name the different sites mandibles can fracture from most common to least common
- Condylar process (36%)
- Body of mandible (21%)
- Angle of mandible (20%)
- Symphysis (14%)
- Ramus (3%)
- Alveolar process (3%)
- Coronoid process (2%)
How many regions make up the nasal cavity
3 regions
Name the 3 regions that make up the nasal cavity
- Olfactory region
- Respiratory region
- Nasal vestibules
Where does the nasal conchae lie
In the lateral walls of the respiratory and olfactory regions
What is the nasal conchae made up of
- Superior
- Middle
- Inferior
Which bone makes up the superior and middle nasal conchae
Ethmoid bone
Name the different paranasal sinuses
- Frontal
- Ethmoid
- Sphenoid
- Maxillary
What happens to the paranasal sinuses with age
They expand as the head gets bigger
How many sinuses does a new born baby have
Just 1: the maxillary sinus
How are the sinuses drained
Thought meatus
Name the different meatuses in the head
- Superior meatus
- Middle meatus
- Inferior meatus
