The axial skeleton skull and sinuses only

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created 9 years ago by Stun1
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1

Skull

Composed of cranial and facial bones

2

Frontal

Anterior portion of the cranium; forms the forehead, superior part of the orbit and anterior part of the cranial floor

3

Parietal

Forms the sides of the cranium

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Sagittal suture

Midline articulation point of the two parietal bones

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Coronal suture

Point where parietals meet the frontal bone

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Temporal

Inferior to parietal bone ( think ears )

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Squamous suture

Suture between Temporal bone and parietal bone

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Zygomatic process

Part of the Temporel bone. A bridge like projection that joins with the zygomatic bone.

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External acoustic meatus

Opening in Temporal bone. A canal leading to eardrum

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Styloid

Needlelike projection inferior to the external acoustic meatus on temporal bone. Serves as an attachment point for muscles and ligaments of the neck.

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Zygomatic Process

Thin bridge of bone that joins with zygomatic bone

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Mastoid Process

Rough projection, attachment site for neck muscles, found on temporal bone

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Jugular Foramen

Allows passage of jugular vein, at junction of occipital and temporal bones

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Occipital Bone

Forms floor and back wall of the skull

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Lamboid Suture

Where the occipital bone joins the parietal bones

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Foramen Magnum

Allows spinal cord to connect with brain

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Occipital Condyles

On each side of the foramen magnum, rest on first vertebra

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Maxilla

Maxilla
Upper jaw, carry upper teeth

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Palatine Bones

Palatine Bones
Form posterior part of hard palate (And part of the orbit)

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Zygomatic Bones

Cheekbones

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Nasal Bones

Form bridge of nose

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Vomer Bone

Single bone in median line of nasal cavity, forms most of nasal septum

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Mandible

Lower jaw, joins temporal bones on each side of the face, largest and strongest bone of the face

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Hyoid Bone

Not directly articulated with any other bone, (greater horn and lesser horn)

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Carotid canal

Opening medial to the styloid process that allows the internal carotid artery to enter the cranial cavity. Part of Temporal bone

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Jugular foramen

Opening medial to styloid process through which the internal jugular vein and cranial nerves pass. Part of Temporal bone

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Sphenoid

Bat shaped bone forming a plateau across the width of the skull.

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Greater wings

Part of sphenoid. anterior to the temporal bones. form part of the orbits of the eyes

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Sella turcica

The saddle shaped region in the sphenoid midline which nearly encloses the pituitary gland

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Lesser wings

Bat shaped portions of the sphenoid, anterior to the sella turcica

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Foramen oval

Opening posterior to the sella turcica that allows a branch of cranial nerve to pass.

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Ethmoid

Irregularly shaped bone anterior to the sphenoid. Forms the roof of the nasal cavity, upper nasal septum, and part of the medial orbit walls.

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Crista galli

Part of ethmoid bone. Vertical projection to which the Dura mater attaches