鼻前庭的介绍

2025-03-16 07:55:49
推荐回答(3个)
回答1:

鼻前庭位于鼻腔内,是由鼻翼所围成的扩大的空间。鼻前庭前端为鼻孔,与外界相通。鼻腔借鼻阈分为鼻前庭和固有鼻腔两部分。

鼻前庭被覆正常皮肤结构,表面有毛囊、皮脂腺、汗腺等附属器。有滤过和净化空气的功能,可以滞留吸入的尘埃。

鼻前庭的前部相当于鼻尖的内角处,有一向外膨隆出的隐窝,为疖肿、痤疮好发之处。



扩展资料

鼻腔被鼻中隔分为左右两腔、前有鼻孔与外界相通,后连通于鼻咽部。鼻中隔因位置常偏向一侧,所以左、右鼻腔的大小和形态多不对称。

鼻腔前部为鼻前庭,后部为固有鼻腔,衬以粘膜,可分为嗅部和呼吸部,有嗅觉及温暖湿润、净化被吸入空气的作用。

鼻旁窦位于鼻腔周围的颅骨内,为含气的空腔,与鼻腔相通,其粘膜与鼻腔粘膜相连。鼻旁窦参与湿润和加温吸入的空气,并对发音起共鸣作用。

参考资料来源:百度百科--鼻前庭

参考资料来源:百度百科--鼻

回答2:

鼻前庭位于鼻腔的前下份,主要由鼻翼围成,内面衬有皮肤,长有鼻毛,具有滤过和净化空气的功能,对吸入的空气形成阻力。

回答3:

概念:是鼻腔前下方鼻翼内面较宽大的部分,前界为鼻孔,后界为鼻阈。鼻阈是皮肤与鼻粘膜的分界处。

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