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人体消化系统/咽
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外观
移至侧边栏
隐藏
摘自维基教科书,开放书目,为开放世界而设
<
人体消化系统
最新审核版本
于
2021 年 7 月 23 日
检查
。有
1 项待定修改
等待审核。
标有咽的颈部示意图。
咽位于口腔后部,是鼻腔和消化道交叉的区域。它将食物从口腔运送到食道。由于咽还服务于呼吸系统,它还通过一个称为
声门
的开口通向气管。
当食物被吞咽时,声门通过称为
会厌软骨
的叶状软骨闭合。
类别
:
书籍:人体消化系统
华夏公益教科书