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ANAT 316 > The Skull > Flashcards

The Skull Flashcards

(178 cards)

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1
Q

Two components of the skull

A
  1. Facial Skeleton (Viscerocranium)

2. Cranial Vault (Neurocranium)

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2
Q

How many bones in the facial component

A

14

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3
Q

How many bones in the cranial component

A

8

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4
Q
A

Frontal Bone

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5
Q
A

Parietal Bone

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6
Q
A

Orbit

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7
Q
A

Lacrimal

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8
Q
A

Temporal

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9
Q
A

Mandible

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10
Q
A

Maxilla

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11
Q
A

Zygomatic Bone

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12
Q
A

Nasal bones

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13
Q

Which bones cannot be seen from a frontal view?

A

the occipital bone and the palatine bones

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14
Q

Only bone not directly attached to the skull

A

the mandible

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15
Q

How many teeth do the maxilla and mandbile contain?

A

16 each

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16
Q

The maxilla and mandible each feature an ____________ which contains the teeth

A

alveolar process

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17
Q
A

Superior orbital notch (or foramen)

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18
Q
A

Inferior orbital foramen

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19
Q
A

Mental foramen

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20
Q

What do foramina allow?

A

the passage of nerves

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21
Q
A

Sphenoid

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22
Q
A

Nasal

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23
Q
A

Orbit

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24
Q
A

Maxilla

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25
Mandible
26
Styloid process
27
Mastoid process
28
Occipital
29
Frontal
30
Parietal
31
Temporal
32
Zygoma
33
The zygomatic arch is made up of:
the temporal process of the zygomatic bone and the zygomatic process of the temporal bone
34
What part of the sphenoid bone do we see in the lateral view?
The greater wing (above the zygomatic arch) and the lateral pterygoid plate (below the zygomatic arch)
35
What are the sections of the temporal bone? (2)
1. The squamous (flat) section above | 2. The petrous (not flat) section below
36
What makes up the temporal fossa? (3)
The squamous temporal bone with the greater wing of the sphenoid bone and the lower portion of the parietal bone make up the depression
37
What is the name of the 'ear hole' on the temporal bone?
The external acoustic meatus
38
Coronal suture
Where the frontal bone joins the parietal bone
39
Lambdoid suture
Where the parietal bone is united with the occipotal bone
40
Pterion
The area where the parietal, frontal, sphenoid and temporal bones join
41
Saggital suture
Where the paired parietal bones unite
42
Superior nuchal line
a feature of the occipital bone for muscle attachement
43
Occipital condyles articulate with
the atlas at the atlanto-occipital joint
44
Foramen magnum
- Located between the condyles | - Spinal cord passes through it
45
3 main sutures of the cranium
1. Coronal 2. Sagittal 3. Lambdoid
46
Coronal Suture
47
Sagittal Suture
48
Lambdoid Suture
49
Occipital Bone
50
Frontal Bone
51
Parietal Bone
52
Parietal Bone
53
Nasal choanae
54
Vomer Bone
55
Hard palate
56
Palatine bones
57
Palatine Process of the Maxilla
58
Pterygoid Plates
59
Medial pterygoid plate
60
Lateral pterygoid plate
61
Inferior orbital fissure
62
Foramina ovale
63
Foramina spinosum
64
Occipital condyles
65
Styloid process
66
Mastoid process
67
Zygomatic arch
68
Temporal process of the zygomatic bone
69
Zygomatic process of the temporal bone
70
Carotid Canal
71
Stylomastoid Foramen
72
Foramen Magnum
73
Jugular Foramen
74
External Acoustic Meatus
75
Foramen Lacerum
76
Incisive Foramen
77
Optic Canal
78
Superior Orbital Fissure
79
Foramina Rotundum
80
Foramen Ovale
81
Foramina Spinosum
82
Foramina Lacerum
83
Internal Acoustic Meatus
84
Jugular Foramen
85
Hypoglossal Canal
86
Foramen Magnum
87
Jugum of the Sphenoid Bone
88
Lesser Wing of the Sphenoid Bone
89
Anterior Clinoid Processes
90
Greater Wing of the Sphenoid Bone
91
Sella Turcica
92
Posterior Clinoid Process
93
Occipital Bone
94
Clivus
95
Temporal bone
96
Parietal Bone
97
Frontal Bone
98
Crista Gali of Ethmoid Bone
99
Cribriform Plate of the Ethmoid Bone
100
Characteristics of the frontal bone (6)
- Vertical plate - The forehead - Horizontal plate - Roof of the orbit (floor of the anterior cranial fossa) - Frontal sinuses - Supraorbital notch
101
Frontal Bone (internal view)
102
Cribriform plate
103
Crista galli (ethmoid bone)
104
Floor of anterior cranial fossa (Roof of orbit)
105
Characteristics of the parietal bones (5)
- united by the saggital suture - form walls and roof of the cranium - articulate with the frontal bone at the coronal suture - articulate with the sphenoid and occipital bone at the lambdoid suture - articulate with the temporal bone at the squamous suture
106
Characteristics of the occipital bone (4)
- forms the back and the posterior portion of the base of the skull - foramen magnum - hypoglossal canals - occipital condyles
107
Sphenoid bone (anterior view)
108
Lesser wing
109
Sphenoid sinus
110
Superior orbital fissure
111
Greater wing
112
Pterygoid canal
113
Pterygoid process
114
Medial plate
115
Lateral plate
116
Foramen rotundum
117
Orbital surface of greater wing
118
Sphenoid bone (superior view)
119
Superior orbital fissure
120
Anterior clinoid process
121
Optic groove
122
Optic canal
123
Lesser wing
124
Greater wing
125
Sphenoidal spine
126
Posterior clinoid process
127
Sella turcica
128
Foramen spinosum
129
Foramen ovale
130
Foramen rotundum
131
Tuberculum sellae
132
Cribiform plate
133
Crista galli
134
Superior concha
135
Middle concha
136
Perpendicular plate
137
Crista galli
138
Cribiform plate
139
Nasal septum
140
Inferior concha
141
Middle concha
142
Superior concha
143
Air cells
144
Inferior concha
145
Maxillary sinus
146
Frontal process
147
Palatine process of maxilla
148
Superior alveolar process
149
Maxillary bone
150
Horizontal process of palatine
151
Palatine bone
152
Maxilla (Above: medial view; Below: anterior view)
153
Palatine shelf
154
Sinus
155
Infraorbital foramen
156
Nasal bone
157
Mandible
158
Coronoid process
159
Articular process
160
Ramus
161
Angle
162
Body
163
Mandibular foramen
164
Palatine bones (anterior view)
165
Vertical plate of ethmoid
166
Nasal chamber
167
Horizontal plate
168
Vertical plate of palatine bones
169
Vomer
170
Hyoid bone (anterior view)
171
Body
172
Lesser Cornu (horns)
173
Greater Cornu (horns)
174
What are zygomatic bones?
- Cheek bones - Has frontal, maxillary, and temporal processes - Contributes to the wall and lateral border of the orbit and the later half of the inferior border and floor of the orbit
175
What is the lacrimal bone
- small bone located on the medial wall of the orbit - partially forms the opening of the nasolacrimal canal - contributes to the lateral nasal wall
176
What are nasal bones?
- two small bones that form the bridge of the nose
177
What is the hyoid bone?
- hangs below the floor of the mouth - supported by various muscles - the larynx is suspended from it
178
Hyoid bone

ANAT 316 (9 decks)

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