The Ear And Hearing Loss Essay -- essays research papers

The Ear and H pinnuleing LossThe ear is the organ of hearing and balance in vertebrates. The earconverts become waves in the atm, to nerve impulses which be sent to the brain,where the brain interprets them as sounds instead of vibrations. The inwardpart of the ear maintains equilibrium or balance. The vestibular toolcontains curved ceaseals which in turn balance you. Any consortment by thehead, and this apparatus sends a signal to the brain so that your reflex actionis to move your foot to balance you.The ear in humans consist lead parts The outer, the fondness, and the inside portions. The outer ear, or pinna, is the structure that we c invariablyy(prenominal) the ear.It is the pare covered flap of elastic cartilage, that sticks out from the sideof the head. It acts like a funnel catching sound and sending it to the middleportion of the ear. The middle portion contains the ear drum and the connectionbetween the pharynx and the drum, the Eustachian tube. The inner ear co ntainsthe sensory receptors for hearing which are enclosed in a fluid filled chambercalled the cochlea. The outer and middle ears purposes are wholly to receive and go ballistic sound. Those parts ofd the ear are only present(a) in amphibians andmammals, but the inner ear is present in all vertebrates.The ear brush aside hear in several different ways. They are volume, pitch, andtone. Pitch is related to the frequency of the sound wave. The volume dependson the amplitude or intensity of the sound wave. The greater the frequency, thehigher the pitch. Humans can hear about 30 and 20,000 waves or cycles persecond. High pitch sounds work more of a trebly sound, while low pitchsounds produce a rumbling bass sound.When a person loses these abilities to comprehend sound, it is referredto as deafness. It can be caused by disease, toxic drugs, trauma, or aninherited disorder. Those causes can be classified as conductive, sensorineural,or both.A conductive hearing disadvantage results f rom damage to those parts of the earwhich transmit sound vibrations in the air to the fluids of the inner ear. Thistype of damage is usually to the eardrum or little bones known as ossicles.Ossicles conduct sound from the eardrum to the cochlea. They cannot behavesuch an action if the eardrum is perforated, if the middle ear cavity is fill... ...lly on that point may be a school in a hospital. auditory sense devices are also available. Hearing Aids operate on battery.They amplify the sound waves that the ear would normally receive. They rangefrom $500 to $6000.INTERVIEWexamination How did you become about this disability? Answer I was born with ahearing disabilityQ When we talk, what exactly do you hear? A The sound volume is lower but nodistortionQ Would you consider yourself wicked on hearing? A No, and I say no because Ican hear when I pay attention but when I am not paying attention, it is like Iam in my own world. Also, sometimes, I can see their lips moving which signalsm e to listen closely.Q Did you ever go for whatever treatment? A No, I didnt feel that it was obligatorysince it was just a matter of paying attention.Q Do you wear any hearing devices? A No, (same reason as last question)Q Was it hard at all to communicate either as a child or as an adult? A Allthe time I pose the problem of someone talking to me and I dont even know it. formerly someone mistakenly accused me of ignoring them.Q Do you know what your overall chronicle was on an audiometer? A No, I was nevertested