What is the role of the eardrum? What does a normal eardrum look like?

Hello, the tympanic membrane is the boundary between the outer ear and the middle ear, its role is mainly to be able to effectively contact the vibration of the air, and then the sound transmitted by the influence of the moving waves, is a barrier of waterproof and airproof. Hope mine can help you!

Adjusting the balance of ear fluid, generating vibration feedback to the nerves, it produces hearing.

The tympanic membrane is the membrane that separates the outer and middle ears and is mainly used to transmit sound waves. This plays an important role in the auditory function of the human body.

To put it in layman's terms, the eardrum has two functions, one is to protect the inner ear from dirt and water from entering the inner ear, and the other is to amplify the sound.

One is to protect the inner ear from dirt and water, and the other is to amplify sound.

This can be heard.

If the eardrum is damaged, tinnitus occurs immediately and hearing loss occurs.

The normal tympanic membrane is the boundary between the middle and outer ear, presenting.

Oval shape, slightly concave in the middle, grayish-white, more transparent, and at an angle of about 45 degrees to the bottom of the ear canal. The eardrum is 8 mm wide and about 9 mm high, thick and tough. The eardrum can withstand a certain amount of air and water pressure and fight infection, and the eardrum transmits sound to convert sound energy into mechanical energy.

The eardrum is on the outside of the middle ear and is a membrane that separates the middle ear from the outer ear.

The tympanic membrane is an oval, pale gray translucent membrane located at the base of the external auditory canal as a boundary between the ear and the middle ear. The normal tympanic membrane is grayish-white with a light cone.

Hello, the normal tympanic membrane is oval, grayish-white in color, relatively transparent, and has a light cone; distinguish between the middle and outer ears; The middle is slightly concave inward, at an angle of about 45 degrees to the bottom of the ear canal.

The tympanic membrane is a translucent membrane, about 9 mm high, 8 mm wide, and nearly round thick, between the tympanic chamber and the external auditory canal. The tympanic membrane is a conical infundibulum similar to a 135-degree angle, with the concave surface facing the external auditory canal, the convex surface facing the tympanic chamber, the most concave part of the tympanic membrane is the tympanic umbilicus, and the end of the malleus stem is attached to the inner surface of the tympanic umbilicus.

A thin film that is translucent.

The normal eardrum of the human ear is grayish-white with a certain luster, called a light cone. Tension - spotlight, loose - no spotlight.

It is an oval, light gray, translucent film. It is located at the bottom of the external auditory canal and serves as the boundary between the outer and middle ears. The majority of the tympanic membrane is attached to the tympanic groove of the temporal tympanic, and a small part of the upper part is attached to the scales.

The part attached to the drum groove is more solid, called the tension part; The part attached to the scales is thin and loose, and is called the relaxation part. The tympanic membrane is concave inward, and the tip of the depression is called the tympanic umbilicus.

The normal tympanic membrane is a translucent membrane that is nearly round, between the tympanic chamber and the external auditory canal. The anterior inferior tympanic membrane is inclined inward, at an angle of about 45° to the base of the external auditory canal.

What is the function of the eardrum? Teacher, has a protective effect, the role of sound conduction, the role of pressurization, the first aspect, the tympanic membrane has a protective effect, tonifying the demon, is between the external auditory canal and the middle ear, can, protect the middle ear and the inner ear, if it appears, the tympanic membrane perforation, it may cause acute otitis media, severe, may cause inner ear infection, cause hearing loss, tinnitus, vertigo, the second aspect, the tympanic membrane, has the effect of conducting sound, when the external sound waves reach the eardrum, when the periosteum will vibrate, Then the sound waves are transmitted to the ossicular chain, so that it helps, the transmission of sound, the third aspect, Jia, mold, has a pressurizing effect, when the sound travels to the eardrum and then enters the inner ear, Jia, mold, has a pressurizing effect, helps. Improves listening.

The tympanic membrane is the dividing line between the external auditory canal and the tympanic cavity, and its function is to conduct sound through the eardrum vibration, to the ossicular chain, and finally to the inner ear, causing hearing. It can also increase the intensity of the sound, which is conducive to auditory perception.

Under normal circumstances, the eardrum is oval, grayish-white, and has a range of motion, which can close the tympanic chamber and separate the outer ear from the middle ear, so as to avoid the inflammation of the external auditory canal to the middle ear, causing otitis media. Avoid the occurrence of otitis media, and the occurrence of earache, pus, etc.

The eardrum is a membranous substance at the deep end of the external auditory canal, which is mainly the septum separating the external auditory canal from the tympanic chamber, and its main role is to conduct sound. Sound waves pass through the pinna into the external auditory canal and then vibrate the eardrum, which causes the ossicular chain attached to the eardrum to vibrate, which can then be transmitted to the inner ear and eventually produce hearing. If the eardrum is perforated due to otitis media or trauma, it will affect the vibration of the eardrum, and then it will affect the conduction of hearing, and the hearing will be partially reduced.

Of course, it will not be devoid of hearing at all, and tympanic membrane repair can be considered if necessary to improve the situation. The eardrum is generally difficult to see, because the outer ear prop has a certain curvature and depth, it is difficult for light to enter the deep part of the external auditory canal, and at the same time, the observer's head blocks the external light, so the eardrum cannot be seen clearly. The frontal mirror reflects light, and the observer can see the tympanic membrane through the small hole in the middle of the frontal mirror.

It should be the eardrum, which has a protective effect. The tympanic membrane is between the external auditory canal and the middle ear, which can protect the middle ear and the inner ear, if there is a perforation of the eardrum, it may cause acute otitis media, and severe cases may lead to inner ear infections causing hearing loss, tinnitus, and vertigo.

The eardrum is also known as the eardrum. It plays a very important role in the conduction function of hearing, which can drive the vibration of the ossicles in the middle ear, and another very important function of the eardrum is to protect against noise.

The eardrum is an important link in the entire auditory conduction pathway, and if it is damaged, it will affect hearing conduction. A simple perforation of the tympanic membrane has a slight effect on hearing, and the degree of hearing loss may be about 10 to 15 decibels. If the tympanic membrane is perforated and other inflammations occur, such as damage and adhesion of the ossicular chain caused by inflammation of the middle ear, then the hearing loss caused by it will be very serious.

Immobilization: Ensures that the hearing aid does not shift. The earmold is specially made for the individual's ear, and after the initial adaptation period, it will not be felt when it is worn.

Prevent whistling: Howling is caused by the earbuds not tightly integrated with the external ear canal, resulting in sound leakage. The right size earmold will send sound from the hearing aid into the ear without whistling, allowing you to listen to the sound at normal volume comfortably and accurately.

Improved acoustics: Earmolds help you understand sound waves by reducing noise and increasing the frequency of sound amplification required by the patient. Punching parallel holes in the earmold equalizes the pressure inside and outside the ear canal for a more comfortable fit.

The first aspect has a protective effect. The second aspect is that it has the effect of pressurization. The third aspect has the role of conducting sound.

Sound is mainly transmitted to the inner ear through two main pathways, the most important being air conduction.

The membrane, which divides the outer ear from the middle ear, is located at the bottom of the external auditory canal and is an oval-shaped, translucent membrane. The surface of the eardrum is shallow funnel-shaped, and when the eardrum is invaginated, the eardrum sinks in the direction of the middle ear. The cause of invagination of the tympanic membrane is due to an imbalance in the air pressure inside and outside the eardrum.

In the nasopharynx, there is a tube that opens downward, backward, and outward, and the other end opens in the anterior wall of the tympanic membrane, and this tube is called the eustachian tube.

Its role is to communicate the tympanic cavity with the nasopharynx, so that the atmospheric pressure of the tympanic cavity and the external auditory canal is equal to maintain the equalization of the tympanic membrane pressure. If secretory otitis media is present, it can lead to dysfunction of the Eustachian tube, causing an imbalance in the atmospheric pressure inside and outside the eardrum. In this way, due to the atmospheric pressure from the direction of the external auditory canal, the tympanic membrane will become inverted over time.

As long as the hearing is basically normal, mild tympanic membrane inversion is not a problem, if there is a person whose eustachian tube is blocked or narrowed, so that the tympanic cavity and the outside air pressure can not be balanced, not only the tympanic membrane is invaginated, but also the hearing is reduced, accompanied by tinnitus, ear stuffiness, this is pathology, medically called chronic non-purulent otitis media. Although it does not blew pus or water like purulent otitis media, symptoms such as deafness, ear tightness, and tinnitus are very depressing.

The above is an introduction to the function of the eardrum, I believe you have a certain understanding of it after reading it, then you must pay attention to his protection, it is best not to stay in the place of the big sound source for a long time, which may make the eardrum burst, and it will hurt your ears at that time, so I hope you can pay attention, and it is usually best not to listen to songs with headphones for a long time.

The role of conducting sound. It is part of the middle ear. In layman's terms, it is like a membrane on the surface of a drum, sound waves (sound) are transmitted to the eardrum, the eardrum vibrates, and then the vibration is transmitted down one by one, and finally the hearing is formed in the brain.

The eardrum is a translucent membrane with a height of about 9 mm, a width of about 8 mm, and a thickness of about 8 mm. The eardrum is at an angle of about 45° to the base of the external auditory canal, and it is more pronounced in newborns at about 35°. The tympanic membrane is divided into three layers, the outer epithelial layer, the middle fibrous tissue layer, and the inner mucosal layer.

The tympanic membrane is self-healing after perforation, but the healed tympanic membrane has only two layers and less fibrous tissue layer. The most concave part of the center of the tympanic membrane is the eardrum umbilicus, where the end of the malleus stem is attached. When you look at the eardrum, you can see a triangular reflective area called a light cone.

This can be heard.

If the eardrum is damaged, tinnitus occurs immediately and hearing loss occurs.

Signals of sound are transmitted to the brain.

Sound waves striking the eardrum cause it to vibrate, and the ossicles amplify the vibrations of the eardrum and transmit the vibrations to the inner ear.

The eardrum also stops debris such as bacteria from entering the middle ear and nell.

Custom earmolds.

The role of BAI.

In fact, in addition to transmitting sound and sound, the ear mold du also has the following three functions:

The customized ear model of the fixed DAO hearing aid is made completely according to the anatomical position of each part of the outer ear, and the physiological structures such as the earnail cavity, ear wheel and the bending direction of the external ear canal can ensure that the hearing aid is worn more firmly, which can not only avoid the hearing aid from being damaged due to dropping, but also improve the comfort of wearing.

Prevent whistling. Before the earmold, the hearing aid was connected to the ear canal with a number of earplugs of different sizes. Since earbuds don't necessarily fit into everyone's ear canal, whistling is often caused by insufficient sealing. The customized earmold has a better seal, which has the effect of suppressing whistling and improving the hearing effect of hearing aids.

Improves acoustics.

The length of the earmold channel port and the diameter of the sound hole opening directly affect the acoustic performance of the sound transmission process. Therefore, by correcting the shape and size of the earmold channel port, the lack of acoustic characteristics of the hearing aid can be made up to a certain extent, and the sound quality after hearing aid can be further improved.

The earmold of the hearing aid can be fixed, can be sealed, prevent whistling, and acoustic, which is conducive to sound conduction. It is best to decide whether to choose an earmold based on the wearer's personal feelings.

Hello, the eardrum is part of the outer ear and connects the ossicles to the auditory nerve receptors in the inner ear between the external auditory canal and the middle ear. The vibration of the eardrum pulls on the ossicles, creating a lever that conducts sound to the auditory nerve receptors in the inner ear to produce hearing.

The sound wave is converted into vibration and transmitted to the system.

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1. Fixed effect; 2. Prevent whistling; 3. Improve acoustic characteristics.