Cranial Bones & Bone Markings

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Frontal Bone

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1

Frontal Bone

front part of the cranium (forehead) including the upper part

<p>front part of the cranium (forehead) including the upper part</p>
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2

Supraorbital ridges

brow ridges

<p>brow ridges</p>
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3

Temporal bone (x2)

side of the human cranium (ear)

<p>side of the human cranium (ear)</p>
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4

External auditory (acoustic) meatus

hole into inner ear

<p>hole into inner ear</p>
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5

Mastoid process

bump behind ear

*highlighted part bottom left

<p>bump behind ear</p><p>*highlighted part bottom left</p>
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6

Styloid process

attachment for tongue and larynx muscles (shape like pointy needle)

<p>attachment for tongue and larynx muscles (shape like pointy needle)</p>
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7

Zygomatic process

part of zygomatic arc that makes up the "cheek" (side of cheekbones)

<p>part of zygomatic arc that makes up the &quot;cheek&quot; (side of cheekbones)</p>
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8

Occipital bone

back/base of the skull

<p>back/base of the skull</p>
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9

Foramen Magnum

opening for spinal cord

<p>opening for spinal cord</p>
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10

Occipital condyles

sits on the atlas (bumps above the foramen Magnum)

<p>sits on the atlas (bumps above the foramen Magnum)</p>
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11

Ethmoid bone

bones at the root of the nose (behind the bridge between the eyes)

<p>bones at the root of the nose (behind the bridge between the eyes)</p>
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12

Cribriform plate

holes allowing olfactory nerves to enter brain

<p>holes allowing olfactory nerves to enter brain</p>
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13

Olfactory Foramina

holes in cribriform plate

<p>holes in cribriform plate</p>
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14

Perpendicular plate

forms part of nasal septum

<p>forms part of nasal septum</p>
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15

Sphenoid Bone

butterfly-shaped bone at the base of the skull (behind eye socket)

<p>butterfly-shaped bone at the base of the skull (behind eye socket)</p>
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16

Sella Turcica

hold pituitary gland (concaved and seat-like)

<p>hold pituitary gland (concaved and seat-like)</p>
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17

Parietal Bone (x2)

2 skull bones between the frontal and occipital bones forming the top and sides of the cranium ("middle" of the cranium)

<p>2 skull bones between the frontal and occipital bones forming the top and sides of the cranium (&quot;middle&quot; of the cranium)</p>
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18

Sutures

immovable joints between bones

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19

Coronal Suture

the suture between the parietal and frontal bones

<p>the suture between the parietal and frontal bones</p>
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20

Sagittal Suture

the suture uniting the two parietal bones (running down the "middle"- "midsagittal")

<p>the suture uniting the two parietal bones (running down the &quot;middle&quot;- &quot;midsagittal&quot;)</p>
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21

Lambdoid Suture

connects the occipital bone to the parietal bones (towards the "back"/"base" of the skull-- triangle shaped)

<p>connects the occipital bone to the parietal bones (towards the &quot;back&quot;/&quot;base&quot; of the skull-- triangle shaped)</p>
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22

Squamous Suture

connects the parietal and the temporal bone (curved)

<p>connects the parietal and the temporal bone (curved)</p>
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