Infected middle ear Eardrum (bulging) External - ear canal Pus Eustachian- tube (inflamed) - Ventilation tube FIGURE 21.9 Otitis Media Inset shows a ventilation tube placed in the eardrum to equalize middle ear pressure in individuals with chronically malfunctioning Eustachian tubes.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Why is otitis media painful?

Infected middle ear
Eardrum
(bulging)
External -
ear canal
Pus
Eustachian-
tube (inflamed)
- Ventilation tube
FIGURE 21.9 Otitis Media Inset shows a ventilation tube placed
in the eardrum to equalize middle ear pressure in individuals with
chronically malfunctioning Eustachian tubes.
Transcribed Image Text:Infected middle ear Eardrum (bulging) External - ear canal Pus Eustachian- tube (inflamed) - Ventilation tube FIGURE 21.9 Otitis Media Inset shows a ventilation tube placed in the eardrum to equalize middle ear pressure in individuals with chronically malfunctioning Eustachian tubes.
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