The Middle Ear

The Tympanic Membrane is the first important structure in the Middle Ear.

The three Ossicles are the second important structure in the Middle Ear.

Using principles of leverage the Middle ear amplifies the sound signal.

Below is Diagram Figure A-16 from the text, page 395--of the Middle Ear (colors added).



The major contribution of the Middle Ear is the amplification of sound.

The Eustachian Tube equalizes the air pressure in the Middle Ear Cavity.

The Eustachian Tube is also a passage way for germs from the nose to the Middle Ear cavity.

A Middle Ear infection can cause a Conductive hearing called Otitis Media.

A Middle Ear infection can last for months and retard language development in very young children.

Otosclerosis is a conductive hearing loss caused by plague on the ossicles.