Inner ear

The inner ear is the innermost part of the vertebrate ear. It is mainly responsible for sound detection and balance.^[1] In mammals, it consists of two main working parts inside a bony labyrinth: ^[2]

• The cochlea, dedicated to hearing; converting sound pressure patterns from the outer ear into electrochemical impulses which are passed on to the brain via the auditory nerve.
• The balance system. This has three semi-circular canals, which are set at right angles to each other.

Inner ear
Details
Artery	labyrinthine artery
Identifiers
Latin	auris interna
MeSH	D007758
TA	A15.3.03.001
FMA	60909
Anatomical terminology [edit on Wikidata]

Inner ear diagram

The inner ear is found in all vertebrates, with many variations in form and function. The inner ear is supplied with the eighth cranial nerve in all vertebrates.