Sphenoid bone - superior view

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9 Terms

1
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anterior clinoid process

G

  •  project laterally from the superoanterior portion of the body and extend to about the middle of each orbit

<p>G</p><ul><li><p>&nbsp;project laterally from the superoanterior portion of the body and extend to about the middle of each orbit</p></li></ul><p></p>
2
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foramen rotundum

H

  • a pair of small openings (ROS) in the greater

    wings for passage of certain cranial nerves

<p>H</p><ul><li><p>a pair of small openings (ROS) in the greater</p><p class="p1">wings for passage of certain cranial nerves</p></li></ul><p></p>
3
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foramen ovale

I

  • a pair of small openings (ROS) in the greater

    wings for passage of certain cranial nerves

<p>I</p><ul><li><p>a pair of small openings (ROS) in the greater</p><p class="p1">wings for passage of certain cranial nerves</p></li></ul><p></p><p></p>
4
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foramen spinosum

J

  • a pair of small openings (ROS) in the greater

    wings for passage of certain cranial nerves

<p>J</p><ul><li><p>a pair of small openings (ROS) in the greater</p><p class="p1">wings for passage of certain cranial nerves</p></li></ul><p></p><p></p>
5
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clivus

K

  • is a shallow depression that begins on the

    posteroinferior aspect of the dorsum sellae of the sphenoid bone and extends posteriorly to the foramen magnum at the base of the occipital bone 

  • forms a base of support for the pons and for the basilar artery.

<p>K</p><ul><li><p>is a shallow depression that begins on the</p><p class="p1">posteroinferior aspect of the dorsum sellae of the sphenoid bone and extends posteriorly to the foramen magnum at the base of the occipital bone&nbsp;</p></li><li><p>forms a base of<strong> support for the pons</strong> and for the <strong>basilar artery.</strong></p></li></ul><p></p>
6
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lesser wings

L

  • smaller pair of wings in the sphenoid bone

  • are triangular and are nearly horizontal

<p>L</p><ul><li><p><strong>smaller pair of wings</strong> in the sphenoid bone</p></li><li><p>are triangular and are nearly horizontal</p></li></ul><p></p>
7
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greater wings

M

  • form a portion of the floor of the cranium and a portion of the sides of the cranium.

<p>M</p><ul><li><p>form a <strong>portion of the floor of the cranium</strong> and <strong>a portion of the sides of the cranium</strong>.</p></li></ul><p></p>
8
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sella turcica

N

  • The central depression on the sphenoid body

  • This depression looks like a saddle from the side

<p>N</p><ul><li><p>The central depression on the sphenoid body</p></li><li><p>This depression looks like a saddle from the side</p></li></ul><p></p>
9
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dorsum sellae

O

  • Posterior to the sella turcica is the back of the

    saddle

<p>O</p><ul><li><p><strong>Posterior to the sella turcica </strong>is the<strong> back of the</strong></p><p class="p1"><strong>saddle</strong></p></li></ul><p></p>