Dictionary of Biological Psychology
(from Latin, meare: to go) The term meatus indicates an opening: the auditory meatus is a passageway associated with the AUDITORY SYSTEM.
The external auditory meatus (also known as the auditory canal) is a connecting passage between the outer ear (the PINNA) and the EARDRUM; the internal auditory meatus is a passageway through the TEMPORAL BONE, giving nerves access from the ear to the CENTRAL NERVOUS SYSTEM.
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