Relating to the space or relationship between the atlas vertebra and the odontoid process (dens) of the axis.
From 'atlanto-' (atlas) + 'odontoid' (the tooth-like projection of the axis vertebra), medical anatomical term.
The odontoid process looks like a little tooth poking through the atlas—a 1mm difference in this space can mean the difference between mobility and paralysis, showing how precision matters in the body.
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