Internal acoustic meatus
System
Sensory (Ear)
SNOMED CT
264484004
Internal acoustic meatus
Definition
Alternate def: The internal acoustic meatus (or internal auditory meatus ) is an opening on the medial surface of the petrous temporal bone. It is through this passageway that the facial nerve (cranial nerve VII) and vestibulocochlear nerve (cranial nerve VIII) pass to reach their sites of innervation. The vestibulocochlear nerve divides at the internal acoustic meatus to continue as separate vestibular and cochlear components. [MURDOCH:908]
The Internal acoustic meatus is a part of the Sensory (Ear).
Also identified as
Associated Diseases
| Disease | Involvement | Source |
|---|---|---|
| Internal auditory canal meningioma | Disease Has Primary Anatomic Site | NCIT · CC BY 4.0 |