generation and reception of sonic vibration
#1

what is generation and reception of sonic vibration ?
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#2

Physiological acoustics is the study of the transmission of sound and how it is heard by the human ear. Sound travels in waves, vibrations that cause compression and rarefaction of molecules in the air. The organ of the ear, the ear, has three basic parts that collect and transmit these vibrations: the outer, middle and inner ear. The outer ear is made up of the auricle, the outer part of the ear that can be seen, which acts to dump sound through the ear canal to the tympanum or tympanic membrane. The membrane is very sensitive to vibrations and also protects the middle and inner ear. When the eardrum vibrates, it establishes vibrations in the three tiny bones of the middle ear, hammer, anvil, and stirrup, which are often called a hammer, anvil, and stirrup because of their resemblance to those objects. These bones amplify the sound. The stirrup is connected to the oval window, the entrance to the inner ear, which contains a spiral-filled, liquid-filled chamber called the cochlea. When the vibrations are transmitted from the stirrup to the oval window, the fluid inside the cochlea is set in motion. Small hair covering the basilar membrane of the cochlea, a membrane that divides the cochlea longitudinally, move according to the wave pattern. Capillary cells convert the mechanical energy of the waveform into nerve signals that reach the auditory nerve and then the brain. In the brain, the sound is interpreted.
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