What Is the Purpose of the Eardrum?

As the sound makes its way inside of

the ear canal, it ends up vibrating

the tympanic membrane, which is

also known as the eardrum.

Your eardrum is essentially a very

fine piece of skin, which is less than a half of an inch wide. It is

located in between the middle ear and the ear canal.

The Eustachian tube connects the middle ear into the throat. Due

to the amount of air from within the atmosphere, your outer ear

and the air pressure upon both of your eardrums will remain

consistent. It is because of this balance that your eardrums are

able to move back and forth with ease.

The eardrums are extremely sensitive and rigid. Even the

smallest of fluctuations in air pressure will cause it to move back

and forth. It is connected to the tensor tympani muscle, which is

constantly working to pull it inside.

This action helps to keep the whole membrane tight so that it will

vibrate, regardless of what direction the sound wave is coming

from.

This miniscule piece of skin acts identical to that of the diaphragm

within a microphone. The drum is pushed back and forth because

of the rarefactions and the compressions of the different sound

waves.

Louder sounds because the eardrum to move at an increased

distance, while the higher pitched sounds cause it to move at an

increased rate of speed.

Your eardrum also works to protect your inner ear from being

exposed to any loud and low pitched sounds. Whenever the brain

receives any signals for noises, the eardrum will have some form

of a reflex. The stapedius and tensor tympani muscles will end up

contracting all of a sudden.

Due to the contractions, the eardrum will end up pulling the

bones within the ear in opposite directions, which causes the

eardrum to become more rigid in nature.

Whenever this occurs, the ear will not receive the level of noise

needed at the lower end of the speech spectrum, which causes

the loud noises to be lowered in sound.

Beyond just protecting your ear, this reflex ends up helping you

to concentrate on your hearing.

It helps to mask out the loud noises in the background to allow

you to focus your attention on the higher pitched sounds.

Amongst other factors, this also helps you to carry on a

conversation whenever you are in an extremely noisy

environment, such as a rock concert or an auditorium.

The reflex also jumps into motion to help you hear when you

begin talking. Otherwise, you would only end up hearing the

sound of your own voice and it would cancel out anyone else who

may be talking around you.

The eardrum is essentially the main element for sensing sounds

in your entire ear. All of the other components of your ear only

work to pass the information along that have already been

compiled at the eardrum.

As complex as the hearing process is, this is only a portion of it

and there is a lot more that goes into allowing us to hear the

sounds in the environment on a regular basis.

For More Information, Call Hearing Aids Evanston IL

At: (847) 453-3643

Or

Visit Us At:

http://hearing-aids-evanston-il.com/