Health Information Management

Tip: Brush up on outer ear anatomy

APCs Insider, May 2, 2014

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The part of the ear that is visible on the sides of your head is a segment of the external ear (outer ear).
The pinna (helix), at the top, and the earlobe (lobule), at the bottom, simulate a cupped or conical effect as a way to capture sounds and funnel them into the ear via the external auditory canal. The size and shape of this portion of the auditory system is designed to create an acoustic effect that will enhance the vibrations entering the passageway to the middle ear on their way to the brain.
 
This tip is adapted from “ICD-10-CM anatomy refresher: Ears” in the May issue of Briefings on APCs.



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