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Cranial Bones & Bone Markings

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22 Terms
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Frontal Bone
front part of the cranium (forehead) including the upper part
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Supraorbital ridges
brow ridges
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Temporal bone (x2)
side of the human cranium (ear)
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External auditory (acoustic) meatus
hole into inner ear
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Mastoid process
bump behind ear *highlighted part bottom left
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Styloid process
attachment for tongue and larynx muscles (shape like pointy needle)
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Zygomatic process
part of zygomatic arc that makes up the "cheek" (side of cheekbones)
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Occipital bone
back/base of the skull
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Foramen Magnum
opening for spinal cord
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Occipital condyles
sits on the atlas (bumps above the foramen Magnum)
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Ethmoid bone
bones at the root of the nose (behind the bridge between the eyes)
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Cribriform plate
holes allowing olfactory nerves to enter brain
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Olfactory Foramina
holes in cribriform plate
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Perpendicular plate
forms part of nasal septum
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Sphenoid Bone
butterfly-shaped bone at the base of the skull (behind eye socket)
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Sella Turcica
hold pituitary gland (concaved and seat-like)
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Parietal Bone (x2)
2 skull bones between the frontal and occipital bones forming the top and sides of the cranium ("middle" of the cranium)
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Sutures
immovable joints between bones
Coronal Suture
the suture between the parietal and frontal bones
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Sagittal Suture
the suture uniting the two parietal bones (running down the "middle"- "midsagittal")
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Lambdoid Suture
connects the occipital bone to the parietal bones (towards the "back"/"base" of the skull-- triangle shaped)
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Squamous Suture
connects the parietal and the temporal bone (curved)
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