facial bones Flashcards
1
Q
inferior nasal conchae
A
thin bones projecting from the nasal cavity
2
Q
lacrimal bones
A
- in the eye socket
- the lacrimal sac can be punctured during tissue building
3
Q
mandible
A
- largest bone of the face
- this is a check point for facial curvature
4
Q
angle of the mandible
A
- widest part of the jaw
- where the ramus joins the inferior border of the body of the mandible
- it influences the form of the head from a frontal view
- measurement is similar to the distance between zygomatic bones
5
Q
ramus
A
- vertical portion of the mandible
- has the mandibular condyle and coronoid process
6
Q
coronoid process
A
- located on the mandible
- shaped like a crow beak
- the anterior process of the ramus to which the tempolaris muscle attaches
7
Q
mandibular condyle
A
- located on the mandible
- posterior process of the ramus
- rounded eminence at the articulation end of the mandible
- goes in the mandibular fossa
8
Q
body (of the mandible)
A
- part of the mandible
- the horizontal portion
- has the alveolar margin which holds your teeth
9
Q
alveolar process
A
- on the mandible
- holds 16 sockets for teeth
- inferior set of teeth sets lightly with those of the maxilla (affects surface contour)
- loss of teeth will change appearance
10
Q
mandibular symphysis
A
- on the mandible
- vertical line found along the midline on the body of the mandible
- two portions meet at a 110 degree angle
11
Q
mental protuberance
A
- on the mandible
- triangular, midline elevation found along the external surface of the body of the mandible.
- contributes to the formation of the prominence of the chin and its continuous: superiorly with the mandibular symphysis
12
Q
mental tubercle
A
- on the mandible
- paired bony prominence on each side of the mental protuberance
13
Q
alveolar crest
A
- on the mandible
- between the mental eminence and incisor teeth
- surface recedes
- responsible for recession of central plane of lower integumentary lip
14
Q
maxilla
A
- two fused bones
- there are three processes (frontal, palatine, zygomatic)
- holds the top teeth
15
Q
nasal spine
A
- in the maxilla
- used to anchor mouth closure
- the 2 maxilla bones fuse to form inferior margin of the nasal cavity
- send out a small sharp spur
- projection creates bony anatomical limit of the nose
16
Q
alveolar margin (process)
A
- in the maxilla
- thickest and most spongy part of the maxilla
- sockets of 16 teeth
- in adulthood its vertical dimension is increased due to development
17
Q
frontal process
A
- in maxilla bone
- extends superiorly and anteriorly besides a nasal bone
- articulates with frontal bones
- forms most of lateral margin of nasal cavity and medial margin of orbital cavity
- influences the lateral wall of the nose
- most anterior portion of the cheek
18
Q
incisive fossa
A
- in the maxilla
- boney depression in the central front area of the undersurface of the bony hard palate, directly behind the incisors
19
Q
palatine process
A
- in the maxilla
- forms greater part of the roof of the mouth
- floor of the nasal cavity
- not a surface bone
- has influence on the surface form
20
Q
zygomatic process
A
- in the maxilla
- elongated triangular structure
- just forward to join surface of zygomatic bone
- provides direction of anterior natural concavity of the cheek
21
Q
nasal bones
A
- creates the bridge of the nose
- articulation of the two
- anchor cartilage
- lies directly inferior to the glabella
- frontal and lateral surfaces widen as they descend
22
Q
vomer bone
A
inferior portion of the nasal septum
23
Q
zygomatic bones
A
- further part of cheeks
- like a diamond
- creates prominence of the cheek
- determines width of anterior plane of face
- greatest width of anterior plane of face
- ***but the zygomatic arch is the greatest width
24
Q
temporal process
A
- part of zygomatic bone
- surface of a zygomatic bone that articulates with the zygomatic process of the temporal bone
- creates arch of the cheek
25
Q
frontal process
A
- part of the zygomatic bone
- articulates with the frontal bone
- creates the lateral border of the eye socket
26
Q
maxillary process
A
- part of the zygomatic bone
- articulates with the maxilla
- on the inferior and medial region and creates the inferior and lateral border of the eye socket
27
Q
infants skulls
A
- 1/4 of body length
- face makes 1/8 of skull
- more bulbous frontal and parietal bones
- fontanelles
- thinner bones
28
Q
elderly skulls
A
- loss of mass
- larger eye sockets
- reduction in angle of the brow, nose, and maxilla
- increase in the angle of the jaw to 140 degrees
29
Q
race in relation to skulls
A
- some differences but slight
- caucasian, native american, asian, african