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Anatomy - facial bones Flashcards

1
Q

What is the smallest facial bone?

A

lacrimal

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2
Q

Where do the tear ducts pass?

A

lacrimal bone area

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3
Q

What joins the facial and nasal bone

A

Naison

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4
Q

List facial bones

A

nasal, lacrimal, zygomatic, maxillary, mandible, palatine, inferior nasal conchae, vomer

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5
Q

what does the nasal bone form

A

nose bridge

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6
Q

Nasal bone articulations

A

Opposite nasal bone, maxillae, frontal bone (naison), ethmoid plate

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7
Q

what facial bone articulates with all except mandible

A

maxillary

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8
Q

What skull bones do the maxillary articulate with

A

frontal and ethmoid

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9
Q

What does the maxillary bone form?

A

3/4 of the hard palate (formed in palatine process), part of orbit floor, part of the lateral walls and floor of nasal cavity

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10
Q

Hard palate purpose

A

helps chew, separates nasal cavity from oral cavity

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11
Q

Which facial bone forms cheek bones

A

Zygoma

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12
Q

Maxillary processes

A

Frontal process of maxillae, Zygomatic process of maxillae, Alveolar process of maxillae, Palatine process of maxillae

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13
Q

If palatine process is not fused together, what is needed, why?

A

surgery - because sucking is important as an infant

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14
Q

What forms the other 1/4 of the palate?

A

palatine bone

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15
Q

articulations of zygomatic bone

A

temporal, maxillary, sphenoid, frontal

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16
Q

What movement takes TMJ out of mandibular notch

A

Excursion

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17
Q

List paranasal sinuses

A

Frontal sinuses, sphenoid sinuses, ethmoid sinuses, maxillary sinuses

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18
Q

Largest, strongest, and only movable facial bone?

A

Mandible

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19
Q

Tip of chin is called?

A

Mental point

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20
Q

Foramen located in the mandible?

A

mental foramen

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21
Q

What forms the TM joint?

A

Condyle of mandible articulates with mandibular fossa (notch) of the zygomatic process of temporal bone

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22
Q

Mandibular fossa (notch) location?

A

Between mandibular condyle and coronoid

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23
Q

When imaging mandible laterally, how superior?

A

Past EAM to get all of mandible

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24
Q

What bones form the circumference of the orbit?

A

Frontal, zygomatic, maxillary

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25
What bones form the roof of the orbit?
Orbital plates of the frontal bones mainly, and lesser wing of sphenoid
26
What bones form the floor of the orbit?
Maxillary*, zygomatic, palatine
27
Blow out fracture of the orbit
Hit - fracture of maxilla - bleeding / fluid into maxillary sinuses
28
Medial wall of orbit bones
maxillary, ethmoid, lacriminal
29
Purpose of hyoid
supports tongue
30
Hyoid bone is suspended from?
Suspended from the styloid processes of the temporal bones
31
What to include on lateral nasal projection?
anterior nasal spine and acanthion
32
Zygomatic arch consist of?
temporal process of zygomatic bone and zygomatic process of the temporal bone
33
3/4 of the hard palate is located in what process?
palatine process
34
Location of inferior orbital fissure
between greater wing of sphenoid and maxillae
35
Location of infraorbital foramen
between maxillary branch of trigeminal nerve
36
Part between nose and teeth
Acanthion
37
Frontal process of maxillae articulates with what?
nasal bone and frontal bone
38
Facial bones are important for what?
chewing, expressions
39
Vertical part of the palatine bone ascends where?
Ascends between maxilla and pterygoid processes of sphenoid
40
What does the inferior nasal conchae help with?
Filter air before it passes to lungs
41
Vomer bone location
Floor of nasal cavity
42
mandible consist of
body, ramus, and angle/gonion
43
What process is located in ramus of mandible
coronoid process
44
What type of joint is the TM joint
hinge and gliding
45
What structural classification is the TM joint
synovial / diarthrosis (movable)
46
What do the sinuses do when you're sick?
communicate with nasal cavity
47
Purpose of paranasal sinuses
voice, decrease skull weight, moisten inhaled air, absorb shock
48
Most superior paranasal sinus
Frontal sinuses
49
Most inferior paranasal sinus
Maxillary
50
Most posterior paranasal sinus
Sphenoid
51
How far laterally and inferiorly for maxillary projection
Lateral edges of orbits and top of teeth
52
Largest paranasal sinus
maxillary
53
When imaging sphenoid sinuses, include how far posterior?
to EAM
54
Which paranasal sinus varies in size person to person
Frontal sinuses
55
Sphenoid sinuses location
Body of sphenoid
56
How far up for frontal sinuses collimation wise
hairline
57
There are 2 each of the paranasal sinuses, except for one, which one has more than 2?
Ethmoid sinuses have 3 (anterior, middle, posterior)
58
Location of maxillary sinuses
body of maxillae
59
What is the floor of the maxillary sinuses called
maxillary antrum
60
Open mouth projection (waters) shows which paranasal sinus?
sphenoid
61
Is the medial wall or lateral wall of the orbit the thickest? which is the thinnest?
Thickest: lateral, Thinnest: medial
62
lateral wall of orbit contains
Frontal process of zygoma and greater wing of sphenoid
63
What does the vomer bone form
inferior portion of the bony nasal septum
64
What muscles attach at the mandible condyle
temporal
65
C1 landmark for
mastoid tip
66
C2-3 landmark for
mandible angle/gonion
67
C3-4 landmark for
hyoid bone
68
what is the Anterior nasal spine called
acanthion
69
What bone is superior to orbital fissure
lesser wing of sphenoid
70
What bone is inferior to orbital fissure
greater wing of sphenoid
71
Whats the only bone the hyoid articulates with
temporal
72
When imaging TM J
have mouth open and closed

MRT (12 decks)

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