![[前庭下区]单孔 - 耳 - 内耳 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/ear-illustrations/images/v3/b00f8d2ddf6d56180d756579fb6d2ce7416bab39cb21d1ab6e75af9efdd3f386?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=MTA4Niw2NzY&t=W-WJjeW6reS4i-WMul3ljZXlrZQ&tf=Tm90byBTYW5zIFND&tx=1086&ty=676&w=350&wk=1&s=230184691d24fd1386ef177ca0dd3a79)
[前庭下区]单孔
Foramen singulare
定义
在前庭下区（筛状中区）的下方和后方是单孔，即通向后半规管神经的开口。
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
![[前庭下区]单孔 - 颞骨岩部CT - 轴 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/rocher/images/v1/e2b7fdc646589c85209a420ceb312b3a4b487b7ce6c11d9c03cb9d8e08b34847?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MjU4LDIxMw&t=W-WJjeW6reS4i-WMul3ljZXlrZQ&tf=Tm90byBTYW5zIFND&tx=258&ty=213&w=200&wk=1&s=98d9c7198037cec32a67b9d88cfcf17d "[前庭下区]单孔 - 颞骨岩部CT - 轴 - e-Anatomy")
![[前庭下区]单孔 - 颞骨岩部CT - 冠状 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/rocher/images/v1/3d0eaeeb62d676eb3bc365549d0af2573dac1829725e7d985a03ba4d9abbaf6c?ar=640:670&auto=format,compress&bg=000000&fit=crop&p64=MjgzLDIzMQ&t=W-WJjeW6reS4i-WMul3ljZXlrZQ&tf=Tm90byBTYW5zIFND&tx=283&ty=231&w=200&wk=1&s=0f0e1ccc14e673ac391be9a3b7378be9 "[前庭下区]单孔 - 颞骨岩部CT - 冠状 - e-Anatomy")
![[前庭下区]单孔 - 耳 - 内耳 - e-Anatomy](https://cdn.imaios.cn/i/imaios-images/web/images/eanatomy/modules/ear-illustrations/images/v3/b00f8d2ddf6d56180d756579fb6d2ce7416bab39cb21d1ab6e75af9efdd3f386?ar=640:670&auto=format,compress&bg=FFFFFF&fit=crop&p64=MTA4Niw2NzY&t=W-WJjeW6reS4i-WMul3ljZXlrZQ&tf=Tm90byBTYW5zIFND&tx=1086&ty=676&w=200&wk=1&s=17fe3a867caa1feeff303ba02df2c0c9 "[前庭下区]单孔 - 耳 - 内耳 - e-Anatomy")
