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What is the purpose of the eardrum
What is the purpose of the eardrum
What is the purpose of the eardrum
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What is the purpose of the eardrum


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  • 1. 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 veryfine piece of skin, which is less than a half of an inch wide. It islocated in between the middle ear and the ear canal.The Eustachian tube connects the middle ear into the throat. Dueto the amount of air from within the atmosphere, your outer earand the air pressure upon both of your eardrums will remainconsistent. It is because of this balance that your eardrums areable to move back and forth with ease.The eardrums are extremely sensitive and rigid. Even thesmallest of fluctuations in air pressure will cause it to move backand forth. It is connected to the tensor tympani muscle, which isconstantly working to pull it inside.This action helps to keep the whole membrane tight so that it willvibrate, regardless of what direction the sound wave is comingfrom.
  • 2. This miniscule piece of skin acts identical to that of the diaphragmwithin a microphone. The drum is pushed back and forth becauseof the rarefactions and the compressions of the different soundwaves.Louder sounds because the eardrum to move at an increaseddistance, while the higher pitched sounds cause it to move at anincreased rate of speed.Your eardrum also works to protect your inner ear from beingexposed to any loud and low pitched sounds. Whenever the brainreceives any signals for noises, the eardrum will have some formof a reflex. The stapedius and tensor tympani muscles will end upcontracting all of a sudden.Due to the contractions, the eardrum will end up pulling thebones within the ear in opposite directions, which causes theeardrum to become more rigid in nature.Whenever this occurs, the ear will not receive the level of noiseneeded at the lower end of the speech spectrum, which causesthe loud noises to be lowered in sound.Beyond just protecting your ear, this reflex ends up helping youto concentrate on your hearing.It helps to mask out the loud noises in the background to allowyou to focus your attention on the higher pitched sounds.
  • 3. Amongst other factors, this also helps you to carry on aconversation whenever you are in an extremely noisyenvironment, such as a rock concert or an auditorium.The reflex also jumps into motion to help you hear when youbegin talking. Otherwise, you would only end up hearing thesound of your own voice and it would cancel out anyone else whomay be talking around you.The eardrum is essentially the main element for sensing soundsin your entire ear. All of the other components of your ear onlywork to pass the information along that have already beencompiled at the eardrum.As complex as the hearing process is, this is only a portion of itand there is a lot more that goes into allowing us to hear thesounds in the environment on a regular basis. For More Information, Call Hearing Aids Evanston IL At: (847) 453-3643 Or Visit Us At: