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The Middle Ear - The Protective Function of the Chain of Auditory Ossicles in Response to Changes in Atmospheric Pressure

Video in TIB AV-Portal: The Middle Ear - The Protective Function of the Chain of Auditory Ossicles in Response to Changes in Atmospheric Pressure

Formal Metadata

Title
The Middle Ear - The Protective Function of the Chain of Auditory Ossicles in Response to Changes in Atmospheric Pressure
Alternative Title
Das Mittelohr - Die Schutzfunktion der Gehörknöchelchen-Kette bei Änderungen des atmosphärischen Luftdruckes
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF Signature
C 1713
Publisher
Release Date
1990
Language
English
Other Version(s) German
Producer
IWF (Göttingen)

Technical Metadata

IWF Technical Data
Video ; F, 14 min

Content Metadata

Subject Area
Abstract
The ear, functioning as a recipient of pressure, does not only respond to acoustic pressure but also to changes in the static (atmospheric) ambient air pressure. The movements of the tympanic membrane thus caused are several million times greater than during the hearing process. With a view to protecting the sensitive inner ear, the chain of auditory ossicles relies on a complex mechanism in reaction to oscillations of such intensity. Hammer and anvil are diverted. It was with high-grade X-ray enlargements of inner ear preparations that it has been possible for the first time to show the movements which uncouple the inner ear from excessive eardrum shifts. Explanation of X-ray sequences by models and animation.
Keywords auditory ossicles ear / anatomy ear / physiology middle ear /physiology ossicle
IWF Classification Hals-Nasen-Ohrenheilkunde Physiologie (Medizin) Medizin medicine physiology (medicine) otorhinolaryngology (ear, nose and throat)
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