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Medical Term:

external acoustic meatus


the passage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; it consists of a bony (inner) portion and a fibrocartilaginous (outer) portion, the cartilaginous external acoustic meatus.

Synonym(s): meatus acusticus externusTA, acoustic meatus1, antrum auris, auditory canal, ear canal, external auditory meatus

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.