LRA-225 Week 2 facial bone anatomy Flashcards
which 2 facial bones are unpaired from the skull?
vomer and mandible
how many facial bones are in the skull?
14
how many maxillae bones are in the skull?
2
how many zygomatic bones are there in the skull?
2
how many lacrimal bones are in the skull?
2
how many nasal bones are in the skull?
2
how many inferior nasal concha bones are in the skull?
2
how many palatine bones are in the skull?
2
how many vomer bones are in the skull?
1
how many mandible bones are in the skull?
1
what is the largest immovable facial bone?
maxillary bone
what is the largest movable facial bone?
mandible
where do the maxillary bones unite?
midline below the nasal septum
what 3 cavities does the maxilla form?
- mouth
- nasal cavity
- orbit
what are the 4 processes of the maxilla?
- frontal process
- zygomatic process
- alveolar process
- palatine process
what other structure does the maxillary bone have aside from the processes?
body
define acanthion
landmark where the nose and upper lip meet
define maxillary sinus
- an air filled cavity in each body of the maxilla
in what view can you see the palatine process?
inferior view of the maxilla
what structure is located on the anterior portion of the roof of the mouth?
- hard/bony palate
what type of joint are the 2 palatine processes?
synarthrodial joint/immovable
define cleft palate
congenital defect opening between the palatine processes that is caused by incomplete joining of the 2 bones
what bone forms the posterior part of the hard palate?
the horizontal portion of the palatine bones
what 2 cranial bones does the maxilla articulate with?
frontal and ethmoid
what 7 facial bones does the maxilla articulate with?
- zygoma
- lacrimal
- nasal
- palatine
- inferior nasal concha
- vomer
- adjacent maxilla
what bone forms the prominence of the cheeks and make up the lower outer portion of the orbits?
zygomatic bones
define zygomatic arch
a delicate structure that sometimes is fractured or “caved in” by a blow to the cheek
what bone projects posteriorly from the zygoma that connects with the zygomatic process of the temporal bone
zygomatic arch
what 3 cranial bones does the zygoma articulate with?
- frontal
- sphenoid
- temporal
what facial bone does the zygoma articulate with?
maxilla
what facial bones are the tinniest and most fragile?
lacrimal and nasal bones
what’s the origin of the term lacrimal
- “tear”
true or false: Much of the nose is made up of cartilage, and only the two nasal bones form the bridge of the nose.
true
what 2 cranial bones does the lacrimal bone articulate with?
frontal and ethmoid
what 2 facial bones does the lacrimal bone articulate with?
maxilla and inferior nasal concha
what 2 cranial bones does the nasal articulate with?
frontal and ethmoid
what 2 facial bones does the nasal articulate with?
maxilla and adjacent nasal bone
what two bones project from the lateral walls of the nasal cavity on each side and extend medially?
inferior nasal conchae/turbinates