下颌管 - Canalis mandibulae

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描述

The mandibular canal runs obliquely downward and forward in the ramus, and then horizontally forward in the body, where it is placed under the alveoli and communicates with them by small openings.

On arriving at the incisor teeth, it turns back to communicate with the mental foramen, giving off two small canals which run to the cavities containing the incisor teeth.

In the posterior two-thirds of the bone the canal is situated nearer the internal surface of the mandible; and in the anterior third, nearer its external surface.

It contains the inferior alveolar vessels and nerve, from which branches are distributed to the teeth.


结构高低级

大体解剖 > 骨, 骨骼系统 > 中轴骨骼 > 脑颅骨 > 下颌骨 > 下颌支 > 下颌孔 > 下颌管

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