![]() ![]() ![]() As a consequence, these hair fibres are essential to our hearing ability. In the brain the electrical impulses are translated into sounds which we recognise and understand. When the hair fibres move, they send electrical signals to the auditory nerve which is connected to the auditory centre of the brain. The hair fibres in the cochlea are all connected to the auditory nerve and, depending on the nature of the movements in the cochlear fluid, different hair fibres are put into motion. The function of the auditory nerve is to transmit signals from the internal ear to the brain. What is the auditory nerve? The auditory nerve is a bundle of nerve fibres that carry information between the cochlea in the inner ear and the brain. There are approximately 24,000 of these hair fibres, arranged in four long rows. When the fluid moves inside the cochlea, thousands of microscopic hair fibres inside the partition wall are put into motion. This hole is necessary, in ensuring that the vibrations from the oval window are transmitted to all the fluid in the cochlea. However, in order for the fluid to move freely in the cochlea from one side of the partition wall to the other, the wall has a little hole in it (the helicotrema). These membranes form a type of partition wall in the cochlea. Unilateral hearing loss - Single sided deafnessīut what exactly is the cochlea and how does it work? The cochlea resembles a snail shell or a wound-up hose and is filled with a fluid called perilymph and contains two closely positioned membranes.These examples are programmatically compiled from various online sources to illustrate current usage of the word 'auditory nerve.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Jeremy Hillpot, Discover Magazine, This type of hearing loss, which affects many people, is currently untreatable it isn’t helped by hearing aids or cochlear implants, both of which depend on the auditory nerve to send the final signals to the brain. 2023 The electric charge stimulates the auditory nerve. Jennifer Ouellette, Ars Technica, 22 Mar. 2011 Beethoven-Haus Bonn An autopsy identified severe liver damage (evidence of cirrhosis) as the likely cause of death and significant dilation of the auditory nerve. Christopher Linstrom, Discover Magazine, 31 Jan. 2022 For the middle ear muscle reflex, the afferent limb is the auditory nerve the efferent limb is the facial nerve for the stapedius muscle and the trigeminal nerve for the tensor tympani muscle. Brian Robinson, Discover Magazine, 20 Oct. 2023 These nerve endings translate the vibrations into electrical impulses, then send the electrical impulses along the auditory nerve to your brain. Robert McCoppin, Chicago Tribune, 28 Apr. ![]() David Begnaud, CBS News, Cochlear implants must be done soon after hearing loss so that the auditory nerve that sends noise signals to the brain remains intact, Clarice Boswell’s surgeon, Dr. IEEE Spectrum, Once activated, the stimulation of the auditory nerve sends signals to the brain, which then interpret them as sound for that ear. Recent Examples on the Web Cochlear implants currently require digital signal processing, which involves receiving a sound, converting it from analog to digital, and processing the digital signal before stimulating the auditory nerve.
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