Inner ear

The inner ear refers to the bony labyrinth, the membranous labyrinth and their contents. It may also be referred to as the vestibulocochlear organ, supplied by the vestibulocochlear nerve (CN VIII)It is divided into three main parts:

As the membranous labyrinth is slightly smaller than the osseous labyrinth, the two are separate by perilymph, which does not communicate with the endolymph contained in the membranous labyrinth.

Anatomy: Head and neck
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Article information

rID: 5581
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:
  • Vestibulocochlear organs
  • inner ears
  • Vestibulocochlear organ

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Cases and figures

  • Figure 1: anatomy of the inner ear
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  • Figure 2: middle and inner ears structures
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