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Rad Positioning > Chapter 11 - Facial Bones/Orbits/Nasal Bones > Flashcards

Chapter 11 - Facial Bones/Orbits/Nasal Bones Flashcards

(87 cards)

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1
Q

How many facial bones are there?

A

14

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2
Q

What are the 14 facial bones

A

2 maxillary
2 zygomatic
2 lacrimal
2 nasal
2 nasal conchae
2 palatine
1 vomer
1 mandible

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3
Q

What is the largest immovable bone of the face

A

Maxillary

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4
Q

Where are the maxillary bones anchored

A

Below the nasal septum

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5
Q

What are the 3 cavities that maxilla assists with

A

Mouth
Nasal cavity
One orbit

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6
Q

What are the 4 processes projecting from the body of maxilla

A

Frontal
Zygomatic
Alveolar
Palatine

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7
Q

What are embedded in cavities along the inferior margin of the alveolar process

A

Eight upper teeth

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8
Q

What do the palatine processes form

A

Roof of the mouth

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9
Q

Congenital defect where the palatine bones do not unite

A

Cleft palate

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10
Q

What forms the posterior part of the hard palate

A

Palatine bones

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11
Q

The zygomatic bones are located _______ to the zygomatic process

A

Lateral

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12
Q

The zymomatic bones form the prominent part of the __________ and make up the lower outer portion of each ________

A

Cheek
Orbit

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13
Q

What makes up the zygomatic arch

A

Zygomatic bone and zygomatic process of the temporal bone

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14
Q

Thinnest and most delicate bones of the body

A

Lacrimal and nasal bones

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15
Q

What does lacrimal mean

A

Tears

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16
Q

Lacrimal is the size and shape of a

A

Fingernail

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17
Q

Lacrimal is located _________ on the medial side of the orbit

A

Anteriorly

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18
Q

What forms the bridge of the nose

A

2 nasal bones

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19
Q

Where are the nasal bones in comparsion to the frontal process of the maxillae

A

Anterior and superior

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20
Q

Nasal conchae project from the ________ walls of the nasal cavities

A

Lateral

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21
Q

Superior and middle nasal conchae are formed from what bone

A

Ethmoid

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22
Q

Function of nasal conchae

A

Break the flow of air coming in through the nose

Cleans and warms the air as it comes in contact with the mucous membrane

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23
Q

Location of the vertical portion of the palatine bone

A

Between pterygoid plate of the sphenoid bone and maxilla

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24
Q

Horizontal portion of the palatine bone makes up

A

Posterior portion of the hard palate

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25
What does vomer mean
Plowshare
26
What makes up the nasal septum
Vomer and perpendicular plate of the ethmoid bone
27
Anteriorly the bony nasal septum is cartilaginous and called the
Septal cartilage
28
Where does a deviated septum usually occur
Junction between the septal cartilage and the vomer
29
Surface of the vomer bone is marked by:
Small furrow-like depressions for blood vessels
30
Where is the source of the noseblood when these is trauma to the nose
Vomer
31
What is the thin/horse-shaped bone
Mandible
32
What is the largest facial bone
Mandible
33
What is the only moveable bone in the skull
Mandible
34
Mandible is 2 bones from birth until:
1 year
35
Angle of the mandible is also known as
Gonion
36
Superior to the gonion is the
Ramus
37
Both mandible bodies unite to form the
Symphysis Menti
38
Frontal veiw of the mandible shows the
Body
39
The depression below the symphysis menti is the
Mentum
40
The very center of the mentum is the
Mental point
41
What serves as a passage way for nerves and blood vessels located on each half of the mandible
Mental foramen
42
What terminates in a "U" shaped notch
Ramus of the mandible
43
What is the notch of the ramus called
Mandibular notch
44
Each notch on the ramus has two processes, the most anterior process is the ___________ and the most posterior process is the ______
Coronoid process Condyloid
45
Where does the condyloid process fit into
TM fossa of the temporal bone
46
What is the only moveable joint in the skull
TMJ
47
What shape are the orbits
Cone
48
Orbits - rim of the bone is called the
Base
49
Orbits - the point of the cone whcih is most posterior is called the
Apex
50
The apex of the optic bone corresponds to the
Optic foramen
51
Due to the shape of the orbits, when the head is in a lateral position the OML is parallel to the floor and projects superiorly at a ______ angle and medial at a _________ angle
30 degree angle 37 degree angle
52
How many bones is the orbit composed of
7
53
What bones make up the circular base of the orbit
Maxilla Frontal Zygomas
54
What bones make up the inside of the cone of the orbit
Sphenoid Ethmoid Lacrimal Palatine
55
What are the 3 holes in the orbit
Optic foramen Superior orbital fissure Inferior orbital fissure
56
What is the optic foramen
A hole in the sphenoid bone located at the very posterior of the cone
57
What is the superior orbital fissure
An opening between the greater and lesser wings of the sphenoid bone located lateral to the optic foramen
58
Where is the inferior orbtial fissure
Located between maxilla, zygomatic bone, and the greater wing of the sphenoid
59
What is the small piece of bone which is a portion of the lateral wall of the optic canal
Sphenoid strut
60
What facial bones are located internally and not visible from the exterior skeleton
Palatine bones Vomer
61
What 2 facial bones are unpaired?
Mandible Vomer
62
Where is the anterior nasal spine
Upper part where the maxillae are united
63
What is the superior aspect of the anterior nasal spine
Acanthion
64
What is the air-filled cavity in the body of the maxillary bone
Maxillary sinus
65
What type of joint is formed by the two palatine processes
Synarthrodial
66
What part of the sphenoid is shown on the inferior view of the palatine bones
Pterygoid hamuli
67
Zygomatic bones are also knwon as
Malar bones
68
Inferior nasal conchae are also refered to as
Turbinates
69
The vomer forms what portion of the nasal septum
Inferoposterior
70
Where is the body of the mandible
Left angle around to right angle
71
What is the ridge that extends along the superior portion of the body of the mandible
Alveolar process
72
Flat triangular area below the symphysis menti
Mental protuberance
73
What ramus process cannot be palpated and does not articulate with another bone
Coronoid process
74
What are the two parts of the condyloid proces
Condyle/head and neck
75
What part of the condyloid process fits in the TM fossa
Condyle
76
When the mouth opens, the _______ and the _________ move forward
Condyle and fibrocartilage
77
TMJ is a two-part synovial joint. What divides the upper and lower portions
Artciular fibrous disk
78
What are the movement types of TMJ
Bicondylar Plane (gliding)
79
What type of joints are the teeth with the maxilla and mandible
Fibrous Gomphosis
80
What projection is used for open and closed mouth TMJ
Axiolateral (Schuller method)
81
Where is TMJ compared to the EAM
Anterior and slightly superior
82
What forms the roof of the orbit
Orbital plate of the frontal bone
83
What forms the lateral walls of the orbit
Zygoma
84
What forms the floor of the orbit
Zygoma and maxilla
85
What cranial nerve is the optic nerve
CN II
86
What cranial nerves go through the superior orbital fissure
CN III to CN VI
87
What cranial nerve run through inferior orbital fissure
CN V

Rad Positioning (39 decks)

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