Trace the path of a sound vibration from the tympanic membrane to the hearing receptors.?
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Ok the sound waves are shaking the tympanic membrane (eardrum) , the tympanic membrane passes on these vibrations to these 3 bones in the inner ear called ossicles. These ossicles are much smaller than the tympanic membrane, so they amplify the sound waves (shake more). One of the ossicles is attached to the oval window, so the shaking ossicle passes on the vibration to the oval window. The The oval window is right next to this big structure called a cochlea. It looks like a snail shell. The cochlea is divided into 3 regions: the vestibular duct, the cochlear duct, and the tympanic duct. They are all filled with fluid. So, the vibrating oval window shakes the fluid inside the vestibular duct, which passes on the vibrations to the cochlear duct, which passes vibrations to the tympanic duct, and reaches the round window and stops. The hearing receptors are located inside the cochlear duct. Whenever sound hits the cochlear duct, the hearing receptors detect it and send it to the brain. However, really low sound can go from vestibular duct to tympanic duct (bypass the cochlear duct) and hit the round window. But, ur Question asks for the pathway to the hearing receptors, so the sound ends at the cochlear duct. Hope that helped.
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I've these round things, called tympanums, which are my external ear drums that transmit sound to my middle and inner ears.  Your ear drums in stuck somewhere in your ears.\n\nI'm not answering any more frog questions.  Croak croak.
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Sound travels in a wave.  Actually travels best through a solid.
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This is a tried and true question of Philosophy.  The way one answers shows how human-centered your viewpoint of the natural world is.\nSound is a phenomenon with definite physical, scientifically testable characteristics, e.g. displacement of air molecules; nevertheless, if a HUMAN is not around to hear the sound, does it count? If there is no eardrum to be impacted by the airwaves, is it even a sound? Well, I would have to say that the first person here today has it right-- this is Yahoo Answers. Anything is possible. Except sound.
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Try the sonometer or the resonance experiment
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(1) The Sound is a  physical phenomenon that stimulates the sense of hearing. \n(2) In human beings, hearing takes place whenever vibrations of frequencies between about 15 and 20,000 hertz reach the inner ear.\n(3)  The hertz (Hz) is a unit of frequency equalling one cycle per second. Such vibrations reach the inner ear when they are transmitted through air, and the term sound is sometimes restricted to such airborne vibrational waves. Modern physicists, however, usually extend the term to include similar vibrations in liquid or solid media. Sounds of frequencies higher than about 20,000 hertz are called ultrasonic
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Middle ear visualization is difficult otoscopically* due to the usual opacity of the eardrum. Though various procedures have been developed, difficulties exist in determining effusion and other middle ear anomalies. Past studies have demonstrated the effectiveness of A-scan ultrasound for such purposes. The present study reports initial results of real-time B-scan sonography on patients with normal and effusion-filled middle ears. Consistent landmarks are seen in the normals. Fluid appears in the abnormals as a band or elliptical area of nonreflectance medial to the eardrum.\n \n*Otoscope- A lighted instrument that lets the physician see far down into the outer ear canal.
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By vibrating the molecules.
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Yeah, the sound in the shell is the echo of the blood flow. The only way I know of to hear the ocean from far away is a recording.
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Ringing of the ear is called Tinnitus.\nInside your inner ear, thousands of auditory cells maintain an electrical charge. Microscopic hairs form a fringe on the surface of each auditory cell. When they're healthy, these hairs move in relation to the pressure of sound waves. The movement triggers the cell to discharge electricity through the auditory nerve. Your brain interprets these signals as sound.\n\nIf the delicate hairs inside your inner ear are bent or broken, they move randomly in a constant state of irritation. Unable to hold their charge, the auditory cells "leak" random electrical impulses to your brain as noise.\n\nDamage to auditory cells in your inner ear most commonly results from:\n\nAge-related hearing loss (presbycusis). This process usually begins around age 60. \nNoise-related damage to your inner ear. This erosion of your hearing ability may result from excessive exposure to loud noise over a long period of time. Tractors, chain saws and weapons are common sources of noise-related hearing loss. Portable music devices, such as MP3 players or iPods, may become a common source of noise-related hearing loss in the future if people play these devices loudly for long periods. \nOther causes of tinnitus may include:\n\nLong-term use of certain medications. Aspirin used in large doses and certain types of antibiotics can affect inner ear cells. Often the unwanted noise disappears when you stop using these drugs. \nChanges in ear bones. Stiffening of the bones in your middle ear (otosclerosis) may affect your hearing. \nInjury. Trauma to your head or neck can damage your inner ear. \nCertain disorders of your blood vessels can cause a type of tinnitus called pulsatile tinnitus. These may include:\n\nAtherosclerosis. With age and buildup of cholesterol and other fatty deposits, major blood vessels close to your middle and inner ear lose some of their elasticity — the ability to flex or expand slightly with each heartbeat. That causes blood flow to become more forceful and sometimes more turbulent, making it easier for your ear to detect the beats. \nHigh blood pressure. Hypertension and factors that increase blood pressure, such as stress, alcohol and caffeine, can make the sound more noticeable. Repositioning your head usually causes the sound to disappear. \nTurbulent blood flow. Narrowing or kinking in a carotid artery or jugular vein can cause turbulent blood flow and head noise. \nMalformation of capillaries. A condition called A-V malformation, which occurs in the connections between arteries and veins, can result in head noise. \nHead and neck tumors. Tinnitus may be a symptom of a tumor in your head or neck.  \n\nSo as not to cause panic.  Maybe it's just a simple case of water trapped in your ear. or an infection called otitis media.  It would be prudent for you to go see an EENT for proper diagnosis. and treatment.  All you need might only be an ear irrigation.\n\nTinnitus is usually caused by a head injury, an infection, such as colds or sinus infection or sinusitis, a disease or exposure to loud sounds such as gunshots and explosions.\n\nIt can be a sign of hearing loss, or it can result from head injuries, or diseases that range from the common cold to diabetes. People who work with noisy equipment, such as power tools, can also get it. Or tinnitus may be initiated by a single loud noise, such as a gunshot or an explosion. It can also be a symptom of almost any ear disorder, including the following:\n\n Ear infections \n Blocked ear canal \n Blocked eustachian tube \n Otosolerosis \n Tumors of the middle ear \n Meniere's disease \n Damage to the ear caused by drugs (such as aspirin and some antibiotics) \n Hearing loss \n Blast injury from a blast or explosion \n\nTinnitus may also occur with other disorders such as anemia, heart and blood vessel disorders including hypertension and arteriosclerosis, and low thyroid hormone levels in the blood (hypothyroidism).\n\nA wide variety
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First, we must remember that sound is transmitted in the form of compression waves, or "longitudinal waves". In other words, the mechanism is through atoms or molecules (I will use the generic term "particles") bump into each other to transfer the energy. So, basically we have a series of elastic collisions where each particle bumps into the next, thereby transferring all of its energy.\n\nNow, the amount of energy being transferred is not dependent upon the frequency, but rather the amplitude of the sound wave. \n\nOn the other hand, the amount of POWER (energy per second) is related to frequency. The higher the frequency, the more often the particles bump into each other, so the more power is delivered.\n\nThe answer to your second question is that our skin cannot "feel" frequencies much above 100 cycles per second, probably less than that, due to its elasticity, it cannot resonate at higher frequencies. On the other hand, our eardrum is designed to vibrate at much higher frequencies, and in effect our ability to hear is a manifestation of our eardrum "feeling" the sound. Of course the eardrum itself is only a very small part of the process by which we hear sounds.\n\nHope this helps.
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tympanum or tympanic membrane
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http://www.webplaces.com/html/sounds.htm
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The cerumen glands. See the reference.
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DEFENSE MECHANISM FOR THE EAR.  TRAPS DIRT.  PROTECTS OUR HEARING
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Heres the PDF of the paper that explains the process and the quantitation of how they get the number. \n\nIn this study, the temporal shape of voice-induced nitric oxide (NO) signals in exhaled air has been investigated in eight healthy individuals by means of laser magnetic resonance spectroscopy. The results of the experimental part have been compared with calculated signals obtained by using a simple one-compartment model of the paranasal sinuses. In the experimental part, a rapidly increasing NO concentration has been found when the subjects started humming. After reaching a maximum, the emission starts to decrease with the shape of an exponential decay and finally reaches a constant level. The time constant of this decay (NO washout) is 3.0 ± 1.2 s. The peak height of the NO emission during humming increases when the time between two humming processes increases. When no voice-induced NO emission takes place, the NO concentration in the paranasal sinuses rebuilds again to a maximum concentration. The typical time constant for the NO recovery is 4.5 ± 3.2 min. A three-compartment model defining exactly the geometry and anatomy of the paranasal sinuses has been developed that is based on three main assumptions of the NO dynamics: 1) constant NO production of the epithelium in the sinuses; 2) the rate of the chemical reaction of NO with the epithelium of the paranasal sinuses is proportional to the NO concentration; and 3) the emission of NO from the sinuses (volume/s) is proportional to the NO concentration. It is shown that the three-compartment model under the experimental conditions can be reduced to a one-compartment model, which describes the complete temporal behavior of the NO exchange. \n\nlaser magnetic resonance spectroscopy; nitric oxide emission; noninvasive measurement
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Sound waves are longitudinal waves. They vibrate back and forth in the direction that they aremoving. Sound travels at about 1100 feet /sec.\n\nLight waves are transverse waves, part of the electromagnetic spectrum. they vibrate up and down similar to water waves. They travel at 186,000 miles/sec.