The atlas and axis Flashcards

1
Q

Where is the atlas and axis located?

A

C1 and C2 of the vertebrae.

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2
Q

What is the atlas?

A
  • Holds up the head.
  • Joins it to the Atlanto-occipital joint.
  • It is a ring of bone.
  • C1.
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3
Q

What is the axis?

A
  • Joins the atlas at the atlanto-axial joint.
  • C2.
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4
Q

What are the dens?

A
  • Is the result of the mass of bone that would have been the atlas’ body to fuse during development with the axis.
  • It has articular cartilage.
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5
Q

Does the atlas have spinous processes?

A

No.

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6
Q

What does the atlas have instead of spinous processes?

A

Posterior tubercles.

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7
Q

What is the atlanto occipital joint?

A

Between C1 and the base of the skull.

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8
Q

What is the atlanto axial joint?

A
  • Between C2 and C1.
  • Joins atlas and axis together.
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