天气预报 > 其他 > 口咽部后壁平对第几颈椎
口咽部后壁平对第几颈椎
更新时间: 2020-09-26 00:00:00  

口咽部后壁对第四至第六颈椎,咽是一个前后略扁的漏斗形肌性管道,位于第1-6颈椎的前方,上起颅底,下至第6颈椎下缘移行为食管,咽的后壁及侧壁完整,而前壁不完整,分别与鼻腔、口腔和喉腔相通。

颈椎,指颈椎骨,位于头以下、胸椎以上的部位。位于脊柱颈段,共7块,围绕在颈髓及其脊膜的四周。由椎间盘和韧带相连,形成向前凸的生理弯曲。

关键词: 颈椎

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