寰椎前弓 - Arcus anterior atlantis

影像

描述

The anterior arch forms about one-fifth of the ring: its anterior surface is convex, and presents at its center the anterior tubercle for the attachment of the Longus colli muscles; posteriorly it is concave, and marked by a smooth, oval or circular facet (fovea dentis), for articulation with the odontoid process (dens) of the axis.

The upper and lower borders respectively give attachment to the anterior atlantooccipital membrane and the anterior atlantoaxial ligament; the former connects it with the occipital bone above, and the latter with the axis below.


结构高低级

大体解剖 > 骨, 骨骼系统 > 中轴骨骼 > 脊柱 > 颈椎 > 寰椎 > 寰椎前弓

翻译