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Superior Articular Surface of Atlas
Skeletal System

Superior Articular Surface of Atlas

Facies articulares superior atlantis

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Description

The superior articular surfaces are the smooth, concave, superomedially facing articular areas found along the upper aspects of each lateral mass of the atlas (first cervical vertebra). They articulate with the articular facets of occipital condyles, forming the atlantooccipital joints.

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Articular Surface

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Describe articular surface including color (usually white, black if ochronosis, brown/green if hemochromatosis), crystalline deposits (both gout and chondrocalcinosis will produce chalky white deposits), erosions or pits, or eburnation (= bone that is markedly thickened and smooth [like ivory] due to complete loss of the overlying cartilage - do not mistake eburnated bone for cartilage!

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