Facial bones, Nasal Bones, & Mandible Info Flashcards
1
Q
How many facial bones are there and what are they?
A
- 14
- Nasal (2)
- Lacrimal (2)
- Maxillary (2)
- Zygomatic (2)
- Palatine (2)
- Inferior Nasal conchae (2)
- Vomer (1)
- Mandible (1)
2
Q
How many nasal bones do we have?
A
2
3
Q
How many lacrimal bones do we have?
A
2
4
Q
How many maxillary (maxilla) bones do we have?
A
2
5
Q
How many zygomatic (zygoma) bones do we have?
A
2
6
Q
How many palatine bones do we have?
A
2
7
Q
How many inferior nasal conchae do we have?
A
2
8
Q
How many vomer bones do we have?
A
1
9
Q
How many mandibles do we have?
A
1
10
Q
What is the nasion?
A
Junction of the two nasal bones with the frontal bone
11
Q
What do the nasal bones form?
A
Upper part of the nose bridge
12
Q
Nasal bones ______ in shape and size
A
Vary
13
Q
Nasal bones are _______ bones
A
Small, thin
14
Q
Besides the nasal bones, what forms the rest of the nose?
A
Cartilage
15
Q
What bones are small and thin?
A
Nasal bones
16
Q
What is the junction of the two nasal bones with the frontal bone called
A
Nasion
17
Q
What forms the bridge of the nose?
A
Nasal bones
18
Q
Which facial bone is small and thin?
A
Nasal bones
19
Q
Lacrimal bones are the _________ bones in the skull
A
Smallest
20
Q
What does lacrimal mean?
A
Tear
21
Q
Along with the _________ the lacrimal bone forms the __________ which contains the _________
A
- Maxilla
- Lacrimal fossae
- Lacrimal sacs
22
Q
The lacrimal bones contain a ________ which allows passage for the ________
A
- Lacrimal foramen
- Tear ducts
23
Q
What are the smallest bones in the skull?
A
Lacrimal bones
24
Q
Whats another word for tear?
A
Lacrimal
25
Which bone contains a lacrimal foramen to allow passage for the tear duct?
Lacrimal bone
26
Which bones form the lacrimal fossae, which contain the lacrimal sacs?
- Maxilla
- Lacrimal bone
27
What does the maxillary bones consist of?
- A centrally located body
- 4 processes projecting from the body
28
What do the maxillary bones help form?
The nasal cavity and orbit
29
The maxillary bone is the __________ of the face
Largest immovable
30
What does the maxillary bone form?
3/4 of the roof of the mouth
31
Besides the maxillary bone what else forms the roof of the mouth?
The other 1/4 is formed by the palatine bones
32
Which bones consists of a centrally located body and four processes projecting from the body?
Maxillary bone
33
How many processes does the maxillary bone consist of?
4
34
Which bone assists to form the nasal cavity and orbit?
Maxillary bone
35
What is largest and immovable bone of the face?
Maxillary bone
36
Which bone forms 3/4 of the roof of the mouth and which one forms the other 1/4?
- Maxillary bone (3/4)
- Palatine bone (1/4)
37
What are the four processes of the maxillary bone?
- Frontal process
- Zygomatic process
- Alveolar process
- Palatine process
38
Which process projects upward along the lateral border of the nose toward the frontal bone?
Frontal process
39
Which process projects laterally to unite with the zygomatic bone (aka zygoma)?
Zygomatic process
40
Which process supports the roots of 8 teeth on each bone?
Alveolar process
41
Which process forms the anterior roof of the mouth, called the hard palate?
Palatine process
42
What is the hard palate?
The anterior roof of the mouth
43
What is the anterior roof of the mouth called?
Hard palate
44
What does the palatine process form?
The anterior roof of the mouth called the hard palate
45
What does the alveolar process support?
The roots of 8 teeth on each bone
46
The zygomatic process projects _________ to ________ with the ____________
- laterally
- Unite
- Zygomatic bone (aka zygoma)
47
The frontal process projects _________ along the ________ of the _________ toward the ________
- Upwards
- Lateral border
- Nose
- Frontal bone
48
What does the maxillary bone also contain?
- The maxillary sinus
- Infraorbital foramen
- Anterior nasal spine
49
What bones contain the maxillary sinus, infraorbital foramen, and anterior nasal spine?
Maxillary bone
50
What bone contains the frontal, zygomatic, alveolar, and palatine processes?
Maxillary bone
51
Where is the anterior nasal spine found?
At the junction of the maxillary bones
52
What is the midpoint of prominence of the anterior nasal spine called?
acanthion
53
Where is the infraorbital foramen located?
Under each orbit
54
What is the infraorbital foramen a passageway for?
The infraorbital nerve and artery
55
What does the maxillary sinus empty into?
Nasal cavity
56
What is the acanthion?
The midpoint of the anterior nasal spine prominence
57
What is found at the junction of the maxillary bones?
Anterior nasal spine
58
What is located under each orbit?
Infraorbital foramen
59
What is the passageway for the infraorbital nerve and artery?
Infraorbital foramen
60
What sinus empties into the nasal cavity?
Maxillary sinus
61
What is another name for the zygomatic bones?
Zygoma or malar bones
62
What do the zygomatic bones help to form?
- Prominence of the cheeks
- Lower, outer portion of the orbits
63
What is the temporal process?
Part of the zygomatic bone that extends posteriorly to articulate with the zygomatic process of the temporal bone
64
Which process helps form the zygomatic arch?
Temporal process
65
What extends posteriorly to articulate with the zygomatic process of the temporal bone?
Temporal process
66
What does the temporal process help form?
Zygomatic arch
67
What bone helps form the prominence of the cheeks, and the lower, outer portion of the orbits?
Zygomatic bone
68
What is the hyoid not considered?
A facial bone
69
What is the hyoid?
A small U-shaped bone located at the base of the tongue
70
What holds the hyoid in position?
Stylohyoid ligaments
71
What is the only bone in the body that does not articulate with any other bone?
Hyoid bone
72
What is the small U-shaped bone located at the base of the tongue?
Hyoid bone
73
Which bone is held in position by stylohyoid ligaments?
Hyoid bone
74
The hyoid bone is the ______ bone in the body that _________
- Only
- Does not articulate with any other bone
75
What is the only movable joint in the skull?
Temporomandibular joint
76
Which joint is located anterior and slightly superior to the EAM?
Temporomandibular joint
77
What is the temporomandibular joint classified as?
Synovial, hinge-gliding joint
78
What is formed by the head of the condyloid process of the mandible fitting into the temporomandibular fossa of the temporal bone?
Temporomandibular joint
79
The temporomandibular joint is the ___________
Only movable joint in the skull
80
What joint in the skull is classified as a synovial, hinge-gliding joint?
Temporomandibular joint
81
Where is the temporomandibular joint located?
Anterior and slightly superior to the EAM
82
The Temporomandibular joint is formed by the _________ of the mandible ________ into the ____________
- Head of the condyloid process
- Fitting
- Temporomandibular foss of the temporal bone
83
What is the largest, densest bone of the face?
The mandible
84
What is the only movable bone in the adult skull?
Mandible
85
What is the body of the mandible?
Curved horizontal portion anterior to the angle
86
What is the rami of the mandible?
Two vertical portions
87
What is the mandibular angle?
Where the body and ramus articulate
88
What is the alveolar portion of the mandible?
Superior border of the body that supports the roots of the lower teeth
89
The mandible is the _______ of the face
Largest, densest bone
90
The mandible is the ________ bone in the ______ skull
- Only movable
- Adult
91
What is the curved, horizontal portion of the mandible anterior to the angle?
Mandibular body
92
What are the two vertical portions of the mandible?
Mandibular rami
93
What is the part of the mandible called where the body and ramus articulate?
Mandibular angle
94
What is the superior border of the body that supports the roots of the lower teeth?
Alveolar portion
95
Whats another name for the mandibular angles?
Gonion
96
Whats another name for the gonion?
Mandibular angles
97
What is the mental foramina?
Two tiny openings located on each half of the mandibular body
98
What does the mental foramina transmit?
Nerves and blood vessels
99
What is the mandibular notch?
U-shaped notch on upper portion of ramus
100
What is the condylar (condyloid) process of the mandible?
Posterior portion of upper ramus
101
What is the coronoid process of the mandible?
Anterior end of mandibular notch
102
What is the anterior end of the mandibular notch called?
Coronoid process
103
What is the posterior portion of the upper ramus called?
condylar (condyloid) process
104
What is the U-shaped notch on the upper portion of the ramus called?
Mandibular notch
105
What portion of the mandible transmits nerves and blood vessels?
Mental foramina
106
What are the two tiny openings located on each half of the mandibular body?
Mental foramina
107
Where does the vomer lie?
In the MSP of the floor of the nasal cavity
108
What does the vomer form?
The inferior part of the nasal septum
109
What is a deviated septum?
When the nasal septum is displaced laterally from the midline of the nose
110
Where does a deviated septum usually occur?
At the junction of the septal cartilage and the vomer
111
What does the surface of the vomer contain?
Multiple depressions for blood vessels
112
What is the main source of nosebleeds?
Vomer surface
113
What bones lies in the MSP of the floor of the nasal cavity?
Vomer
114
What bones forms the inferior part of the nasal septum?
Vomer
115
What is it called when the nasal septum is displaced laterally from the midline of the nose?
Deviated septum
116
What usually occurs at the junction of the septal cartilage and vomer?
Deviated septum
117
Which bone surface contains multiple depressions for blood vessels
Vomer
118
The surface of the vomer is the __________
source of nosebleeds
119
Which facial bone are long, narrow, and thin?
Inferior nasal conchae
120
Which bone is curled laterally, and has a scroll-like appearance?
Inferior nasal conchae
121
The inferior nasal conchae extends _________ & _________ from the __________ of the ___________
- Diagonally
- Inferiorly
- Lateral walls
- Nasal cavity
122
The inferior nasal conchae curl _______ and has a _______ appearance
- Laterally
- Scroll-like
123
The inferior nasal conchae are _______ bones
Long, narrow, thin
124
What bone extends diagonally & inferiorly from the lateral walls of the nasal cavity?
Inferior nasal conchae
125
Which nasal conchae are part of the ethmoid bone?
Superior & middle nasal conchae
126
The superior & middle nasal conchae are part of the ______ bone and is considered a _________ bone
- Ethmoid
- Cranial
127
What are the L-shaped bones that are composed of vertical and horizontal plates?
Palatine bones
128
The horizontal plate of the palatine bones _________ with the ________ to form the remaining ________
- Articulates
- Maxillae
- 1/4 of the roof of the mouth
129
The vertical plate of the palatine bones extends ________ between the __________ into the ________
- Upwards
- Maxillae
- Posterior nasal cavity
130
What part of the palatine bone helps to form a small part of the orbit?
Superior tips of the vertical plate
131
What are palatine bones?
L-shaped bones composed of vertical and horizontal plates
132
What do the superior tips of the vertical plate of the palatine bones help form?
Small part of the orbit
133
What articulates with the maxillae to form the remaining 1/4 of the roof of the mouth?
Horizontal plate of the palatine bones
134
What extends upwards between the maxillae into the posterior nasal cavity?
Vertical plate of the palatine bones
