|Bone: Posterior arch|
|First cervical vertebra, or atlas. (Poster. arch labeled at bottom center.)|
|Latin||arcus posterior atlantis|
|Gray's||subject #21 99|
In a cervical vertebra, the posterior arch forms about two-fifths of the circumference of the ring: it ends behind in the posterior tubercle, which is the rudiment of a spinous process and gives origin to the Recti capitis posteriores minores.
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