ORO2 W3 Cervical Bones; Internal Skull Sagittal View

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13 Terms

1
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There are 7 cervical vertebra. Each has a central _________. What passes through here?

Vertebral Foramen. 

Spinal cord passes through (and accessory tissues) 

<p>Vertebral Foramen.&nbsp;</p><p>Spinal cord passes through (and accessory tissues)&nbsp;</p>
2
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What are the identifying features of the Atlas (cervical bone 1) ?

  • Articulates with the SKULL on the occipital condyles.

  • It has 2 lateral masses connected by anterior arch and posterior arch to form a irregular ring.

  • no body and no spine

<ul><li><p>Articulates with the SKULL on the occipital condyles. </p></li><li><p>It has 2 lateral masses connected by anterior arch and posterior arch to form a irregular ring. </p></li><li><p>no body and no spine </p></li></ul><p></p>
3
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Which part of the Atlas is palpable?

Lateral masses.

  • palpable between mastoid process of temporal bone and angle of the mandible

<p>Lateral masses.</p><ul><li><p>palpable between mastoid process of temporal bone and angle of the mandible </p></li></ul><p></p>
4
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What are the identifying characteristics of the Axis?

  • Dens = odontoid process

  • Body = inferior to the dens

  • Spine = posterior to the body

<ul><li><p>Dens = odontoid process</p></li><li><p>Body = inferior to the dens</p></li><li><p>Spine = posterior to the body </p></li></ul><p></p>
5
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The _________ of the Axis articulates with the inferior articulating surfaces of the Atlas.

Superior articular process  

<p>Superior articular process&nbsp;&nbsp;</p>
6
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What are the 5 parts of the Hyoid bone?

  1. Body

  2. paired lesser cornu (2)

  3. paired greater cornu (2)

<ol><li><p>Body</p></li><li><p>paired lesser cornu (2) </p></li><li><p>paired greater cornu (2)</p></li></ol><p></p>
7
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The hyoid bone forms the base of the _____ and ________.

Tongue and larynx

8
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What structure suspend the hyoid bone?

styloid process of the temporal bone by the paired stylohyoid ligaments.

fx of hyoid:

  • mobility for mastication, swallowing and speech 

9
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CN1 (olfactory nerve) passes through ________.

Perforated cribriform plate via several foramina. 

<p>Perforated cribriform plate via several foramina.&nbsp;</p>
10
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CN 5 (trigeminal) passes through ________.

Foramen rotundum

<p>Foramen rotundum </p>
11
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CN 12 (hypoglossal) passes through ________.

Hypoglossal canal

<p>Hypoglossal canal</p>
12
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Which cranial nerves pass through the internal acoustic meatus?

CN 7(facial) and CN 8 (vestibulocochlear) 

<p>CN 7(facial) and CN 8 (vestibulocochlear)&nbsp;</p>
13
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<p>Know this sectioning of the brain.</p>

Know this sectioning of the brain.