![]() ![]() ![]() Together with their supporting cells they form a complex neuroepithelium called the basilar papilla, or organ of Corti. With further advancements in understanding how the brain processes sound, researchers and audiologists can continue to make strides in providing better hearing solutions. human ear - Human ear - Hearing, Cochlea, Organ of Corti: Arranged on the surface of the basilar membrane are orderly rows of the sensory hair cells, which generate nerve impulses in response to sound vibrations. Understanding this science can be valuable for both individuals who have normal hearing as well as those with hearing loss. ![]() It's incredible to think about how our brains process sound and help us make sense of our environment. The science behind hearing helps to explain how we interpret and understand the sounds that come into our ears. For those with hearing loss or auditory processing disorder, more listening effort is allocated to picking up the words or environmental sounds, with fewer mental resources available for higher-level processing. Why is it important to understand the science behind hearing? Hearing is a complex sense that helps us communicate and make sense of the world around us.Ī normal auditory system funnels sound from the outside, down the ear canal, and up to the brain, where it is processed and interpreted. The timbre of sounds we perceive is different from pitch, and humans can distinguish between these different sounds thanks to this processing ability. Higher level processing in the planum temporale helps us to determine whether an instrument is an oboe, violin, or bassoon. unfamiliar talker, accents, and so on.), and other nuances within the conversation. The brain then translates these electrical impulses as sound.When the brain perceives speech, a lot of higher-level processing helps us to understand language, information about the speaker (e.g., male vs. The auditory nerve sends these impulses to the brain. Once the sound waves reach the inner ear, they are converted into electrical impulses. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea). The vibrations are then passed to 3 tiny bones in the middle ear called the ossicles. When a sound is made outside the outer ear, the sound waves, or vibrations, travel down the external auditory canal and strike the eardrum (tympanic membrane). Semicircular canals.This contains receptors for balance. Vestibule.This contains receptors for balance. ![]() The eustachian tube is lined with mucous, just like the inside of the nose and throat.Ĭochlea.This contains the nerves for hearing. The eustachian tube helps to equalize the pressure in the middle ear. Equalized pressure is needed for the proper transfer of sound waves. The bones are called:Įustachian tube. A canal that links the middle ear with the back of the nose. Ossicles. Three small bones that are connected and transmit the sound waves to the inner ear. Middle ear (tympanic cavity), consisting of: The auditory nerve is composed of the cochlear nerve and vestibular nerve, which run, respectively, from the cochlea to the cochlear nucleus and from the. The tympanic membrane divides the external ear from the middle ear. This is the tube that connects the outer ear to the inside or middle ear. This is the outside part of the ear.Įxternal auditory canal or tube. The ear is the organ of hearing and balance. ![]()
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