Sound is made up of pressure waves, which can travel through air, liquid and solid objects. When these waves strike the outer ear, they are funnelled down the ear canal to the eardrum, which starts to vibrate. Its vibrations are magnified by the three bones in the middle ear. The stirrup acts like a piston, transferring these vibrations to the fluid of the inner ear. As the fluid moves, it excites special hair cells in the cochlea. These hair cells send Signals along the auditory nerve to the brain, which interprets the signals as sound. The brain is able to Concentrate on the sounds that it Wants to listen to and hold back the rest of the sound signals.
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Kalu dharmar
Sound is made up of pressure waves, which can travel through air, liquid and solid objects. When these waves strike the outer ear, they are funnelled down the ear canal to the eardrum, which starts to vibrate. Its vibrations are magnified by the three bones in the middle ear. The stirrup acts like a piston, transferring these vibrations to the fluid of the inner ear. As the fluid moves, it excites special hair cells in the cochlea. These hair cells send Signals along the auditory nerve to the brain, which interprets the signals as sound. The brain is able to Concentrate on the sounds that it Wants to listen to and hold back the rest of the sound signals.