How Your Ears Hear Sounds in 5 Easy Steps

Most worthwhile projects or goals need a number of steps and perseverance as time passes to accomplish and accomplish. High-value projects and goals almost invariably require careful planning, several steps over a period of time and perseverance to stick with it to see the project right through to the end. That is also true about anything like deciding to find out how your ears hear sounds. This is how you ear accomplishes that amazing achievement in only 5 simple steps.

Step 1. Vibrating objects, such as the reverberating strings of a piano or the vocal cords of a person speaking, create percussive air waves in the surrounding air. These minute air pressure waves cause the tympanic membrane of your ear drum to vibrate with the at a frequency corresponding to the sound. This is really crucial since the first step is for the energy pattern of the sound to enter your inner ear. If you don’t really do that step, efficiently because for example you have wax in your ear, you hearing ability becomes very much reduced.

Step 2. The three bones of the middle-ear transmit the mechanical movements to the oval window, a membrane on the surface of the cochlea. This is a crucial step that will need a healthy ear. The main reason why is that vibrations of the oval window must produce pressure waves in the fluid within the cochlea

Step 3. The cochlea transduces the energy of the vibrating fluid into action potentials. The main reason is because you want your ear to allow the stapes vibrating against the oval window to in turn create a traveling pressure wave in the fluid of the cochlea that passes into the vestibular canal.

Step 4. This minute pressure wave travels around the tip of the cochlea and via the tympanic canal, before dissipating as it strikes the round window. To elaborate on that a bit, the waves in the vestibular canal push downward on the cochlear duct and the so-called basilar membrane.

Step 5. The “basilar” membrane vibrates up and down in response to these pressure waves, and its hair cells alternately brush against and then pull away from the so-called “tectorial membrane”. Deflection of the hairs opens tiny “ion” channels at the molecular scale in the plasma membrane of the hair cells. From this point onward, the sound has entered our brains neurotransmitter system from the hair cell and the frequency of the sound enters the sensory neuron with which the hair cell synapses. So, to the non-biologist, and non-medically trained we would say that the brain has heard the sound at this point.

Finally, if you have read the above step closely, you’ll succeed in understanding the action of the ear in sending hearing to the brain, and will then take pleasure in the fruits of this success! You should congratulate yourself and allow yourself to become satisfied and somewhat proud. You set out to attain your goal and you succeeded! Now enjoy!

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