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Axial Bones > Skull > Flashcards

Skull Flashcards

1
Q

skull has ____ bones

A

22

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2
Q

skull is divided into two parts

A

Calvarium/Cranium and Cranial Base/Facial Bones

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3
Q

forms forehead, superior part of orbits, and most of the anterior cranial fossa

A

Frontal Bone

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4
Q

contains sinuses

A

Frontal Bone

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5
Q

forehead, the most anterior part of the frontal area

A

Squamous

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6
Q

thickened part which lie under the eyebrows

A

Supraorbital Margin

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7
Q

This is where the forehead ends.

A

Supraorbital Margin

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8
Q

passageway of supraorbital artery and nerves

A

Supraorbital Foramen

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9
Q

Form most of the superior and lateral aspects of the skull

A

Parietal Bones

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10
Q

interlocking joints of the skull

A

Sutures

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11
Q

joint between the parietal and frontal bone

A

Coronal Suture

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12
Q

joint between the parietal and occipital bone

A

Lambdoid Suture

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13
Q

joint between the parietal and temporal bone

A

Squamous Suture

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14
Q

joint between two parietal bones

A

Sagittal Suture

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15
Q

Form inferolateral aspects of the skull and contribute to the middle cranial fossa

A

Temporal Bones

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16
Q

Best viewed on lateral position

A

Temporal Bones

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17
Q

Has 3 major parts

A

Temporal Bones

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18
Q

What are the 3 major parts of the temporal bones

A

Squamous, Tympanic, and Petrous

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19
Q

when the zygomatic process of the temporal bone meets the zygomatic bone, it forms an arch.

A

Zygomatic Arch

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20
Q

condylar process of the mandible articulates with the mandibular fossa

A

Temporomandibular Joint (TMJ)

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21
Q

through which the sound enters the ear, thus enables sound waves to reach the eardrum.

A

External Acoustic Meatus

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22
Q

supports the temporal brain

A

Middle Cranial Fossa

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23
Q

passage way of the jugular vein

A

Jugular Foramen

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24
Q

Transmits the internal carotid artery into the cranial cavity.

A

Carotid Canal

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25
between petrous temporal and sphenoid.
Foramen Lacerum
26
Most medial portion
Foramen Lacerum
27
transmits cranial nerves.
Internal Acoustic Meatus
28
which acts as an anchoring site for some neck muscles.
Mastoid Process
29
Can be felt as a lump just posterior to the ear.
Mastoid Process
30
The mastoid has many air cavities called
Mastoid Air Cells
31
needle like process which is not just for neck attachment but also for tongue muscles.
Styloid Process
32
allows passage of the maxillary division of cranial nerve V.
Foramen Rotundum
33
allows passage of the mandibular division of cranial nerve V.
Foramen Ovale
34
allows passage of the middle meningeal artery.
Foramen Spinosum
35
inferior view
Occipital
36
supports the cerebellum
Posterior Cranial Fossa
37
largest foramen of the skull, spinal cord passes through.
Foramen Magnum
38
located on each lateral side of the foramen magnum
Occipital Condyles
39
This is where C1 articulates.
Occipital Condyles
40
Most bulging part of the posterior skull.
External Occipital Protuberance
41
Keystone of the cranium; contributes to the middle cranial fossa and orbits
Sphenoid Bone
42
forms the center of the sphenoid bone.
Body of the Sphenoid
43
houses the pituitary gland
Hypophyseal Fossa of the Sella Turcica
44
processes of the sphenoid bone
Lesser Wing, Greater Wing, and Pterygoid Process
45
medial process, horn-like
Lesser Wing
46
projects laterally
Greater Wing
47
interior portion, which serves as an attachment for pterygoid muscles for chewing
Pterygoid Process
48
Helps to form the anterior cranial fossa; forms part of the nasal septum and the lateral walls and roof of the nasal cavity; contributes to the medial wall of the orbit
Ethmoid Bone
49
helps form the root of the nasal cavities and floor of the anterior cranial fossa
Cribriform Plate
50
the dura matter, specifically the falx cerebri of the brain is attached to this structure to help secure the brain in the cranial cavity
Crista Galli
51
inferior portion, which divides the nasal cavity from right to left.
Perpendicular Plate
52
the lower jaw
Mandible
53
Between each ramus and the body of mandible is a formed angle known as mandibular angle.
Paired Rami
54
articulate with the temporal bones in the TMJ of the jaw.
Condylar Processes
55
insertion points for the temporalis muscle
Coronoid Processes
56
permit the inferior alveolar nerves to pass.
Mandibular Foramina
57
allow blood vessels and nerves to pass to the chin and lower lip.
Mental Foramina
58
Form the upper jaw and parts of the hard palate, orbits, and nasal cavity walls
Maxilla
59
bony projection located at the midline of the maxilla (upper jaw) at the lower end of the nasal cavity.
Anterior Nasal Spine
60
allows passage of the the infraorbital nerve to the skin of face.
Infraorbital Foramen
61
Form the cheeks and part of the orbits
Zygoma
62
articulations of zygoma
Maxilla, Frontal Bone, Temporal Bone
63
Form the bridge of the nose
Nasal Bone
64
articulations of nasal bone
Maxilla, Frontal Bone, Perpendicular Plate
65
Form part of the medial orbit wall
Lacrimal Bone
66
houses the lacrimal sac, which helps to drain the tears into the nasal cavity.
Lacrimal Fossa
67
Form posterior part of the hard palate and a small part of nasal cavity and orbit walls
Palatine Bone
68
medial fusion point of the horizontal plates of the palatine bones which form the posterior part of the hard palate.
Median Palatine Suture
69
Inferior part of the nasal septum
Vomer
70
Lateral walls of the nasal septum
Inferior Nasal Conchae
71
is unique in that it is the only bone of the body that does not articulate directly with any other bone.
Hyoid Bone
72
Three bones in the middle ear that are among the smallest bones in the human body.
Auditory Ossicles
73
hammer
Malleus
74
anvil
Incus
75
stirrup
Stapes

Axial Bones (4 decks)

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