Cervical Vertebrae

Cervical Vertebrae

Atlanto-occipital joint
Answer:

• Altanto-occipital joint is synovial joint

Atlanto-occipital joint Articular surfaces:

• Above-occipital condyles
• Below-superior anterior facets of the atlas vertebrae

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Atlanto-occipital joint Ligaments:

• Fibrous capsule
  • Surrounds the joint
• Anterior atlanto-occipital membrane
  • Extends from anterior margin of the foramen magnum to the upper border of the anterior arch of the atlas
• Posterior atlanto-occipital membrane
  • Extends from posterior margin of the foramen magnum to the upper border of the posterior arch of the atlas

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Atlanto-occipital joint Arterial supply:

• Vertebral artery

Atlanto-occipital joint Nerve supply:

• First cervical nerve

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Atlanto-occipital joint Movements:

• Flexion- around transverse axis
• Extension around transverse axis
• Lateral bending – around anteroposterior axis

Features of cervical vertebrae