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| Internal acoustic meatus ： ウィキペディア英語版 |
Internal auditory meatus
The internal auditory meatus (also meatus acusticus internus, internal acoustic meatus, internal auditory canal, internal acoustic canal, or IAC) is a canal within the petrous part of the temporal bone of the skull between the posterior cranial fossa and the inner ear.
==Function==
The internal auditory meatus transmits the vestibulocochlear nerve, the facial nerve, and the labyrinthine artery (an internal auditory branch of the basilar artery).
It also contains the vestibular ganglion.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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