ch 11 facial bones, orbits, nasal bones
maxilla, frontal bone, and they zygomas
What bones of the face make up the circular base of the orbits?
lacrimal, ethmoid, sphenoid, and palatine
What bones of the face make up the inside cone of the orbits
optic foramen
a hole int he sphenoid bone located at the very posterior of the cone (apex)
cartilaginous
anteriorly the bony nasal septum is?
mouth, nasal cavity, orbit
each maxilla assist in the formation of three cavities of the face, what are the cavites?
maxilla
each separate bone has a body and 4 processes, frontal, zygomatic, alveolar, and palatine. what is the bone?
2
how many maxillary bones are there?
2
how many zygomatic bones
inferior orbital fissure
located between the maxilla, zygomatic bone, and the greater wing of the sphenoid
alveolar process
part of the maxilla that has eight teeth embedded in cavities along the inferior margin of this process.
nasal conchae
scroll shaped, thin and curved divide the nasal cavities into compartments to break the flow of air coming in through the nose
ramus
terminates in a "U" shaped notch on the mandible
optic foramen
the apex of the orbits corresponds with what?
septal cartilage
the cartilage anteriorly to the nasal septum is called
tempomandiublar fossa
the condyloid process fits into what on the temporal bone.
muscle attachments
the coronoid process cannot easily be felt, this serves for
mentum or mental protuberance
the depression below the symphysis menti is termed the what?
nasal septum
the facial bones are anchored at the midline below the what?
hard palate
the horizontal portion of the palatine bone makes up the posterior portion of what?
fingernail
the lacrymal bones are about the size of what?
coronoid process
the most anterior process of the mandibular notch
condyloid
the most posterior process of the mandibular notch
mucous membrane
the nasal conchae cleans and warms the air as it comes in contact with the what?
mandibular notch
the notch at the end of the mandible
seven bones
the orbits of the eyes are composed of how many bones?
apex
the point of the orbit cone which is most posterior is called what?
base
the rim of the cone chapped orbits is called the what?
37 degree angle
the shape of these orbits once the head is placed lateral and the OML is parallel to the floor projects medial at what degree?
30 degree angle
the shape of these orbits once the head is placed lateral and the OML is parallel to the floor projects superior at what degree?
ethmoid bone
the superior and middle nasal conchae are formed from what bone
pterygoia plate
the vertical portion of the "L" palatine bone extend between one maxilla and what part of the sphenoid bone
mental point
the very center of the mentum
temporal bone
the zygoma connects with the zygomatic process of what side bone, making up the zygomatic arch which is easily broken
cheekbone
the zygomatic bones make up the lower portion of each orbit and form the prominent part of what boney landmark?
mental foramina
these are located on each half of the mandible which serve as passageways for nerves and blood vessels
lacrimal bones
these bones are the thinnest and most delicate bones in the body, associated with the tear ducts
nasal bones
these two bones form the bridge of the nose once fused together.
mandible
thin and horseshoe shaped, largest of the facial bones, the only movable bone in the adult skull
vomer
thin and triangular bone with the surface marked by small furrow like depressions for blood vessels.
maxillary bone
this bone articulates with all other facial bones
palatine bone
this bone is located internally, "L" shaped
cleft palat
this is a congenital defect in which the palatine bones don't unite
sphenoid strut
this is a small piece of bone which is a portion of the lateral wall of the optic canal
superior orbital fissure
this is an opening between the greater and the lesser wings of the sphenoid bone located lateral to the optic foramen
ramus
this is superior to the gonion of the mandible
gonion
this is the angle of the mandible located at c4
maxillary bones
this is the largest immovable bones in the face
TMJ
this is the only movable joint in the skull
symphysis menti
this is where the two bodes of the mandible unit at the midline
palatine process
this part of the maxilla form the roof of the mouth, hard or bony palate, only seen in an inferior view
plowshare
vomer means
gonion and ramus
what do you see on a lateral view of the mandible
tempomandibular joint
what does TMJ stand for
body of mandible
what does a frontal view show of the mandible
tear
what does lacrimal mean?
zygomas
what is one zygomatic bone called
anterior and superior to the frontal processes of the maxillae
where are the nasal bones located in the face
anteriorly on the medial side of each orbit
where is the lacrymal located