Description:
<jats:p>Piezoelectricity is conversion of mechanical energy to electric energy and vice versa. This property exhibits in noncentrocymetric materials. Bone is well-known piezoelectric material in living body. Eardrum is connected with bones (malleus, incus, stapes, and bony cochlea). Cochlea is snail-shaped and filled with fluid and hair cells (human electrodes). Fluid is centrocymetric; hence, it is nonpiezoelectric material. Acoustic pressure on eardrum sets mechanical energy to these bones. Bones convert mechanical energy to electric polarization, which is direct piezoelectric property. Electric charges generated in bones are transmitted through fluid as ±ions (like a car battery charger) and picked up by −/+ hair cells and auditory nerves for transmission to brain. Transmissions of ±charges through fluid generate movement of fluid. Cochlea replacement is required when hair cells in cochlea lose their power to transmit charges. Vocal cord surrounded by cricoid and arytenoid cartilages is known as vocal box/larynx. Larynx transforms pulse energy to sound energy (converse piezoelectric property). Vocal cord narrowing and opening its air passage from lungs can also produce sound. Present concept of ear function contradicts majority of doctor’s view, that is, fluid in cochlea transforms sound (mechanical) energy to electric energy, which is untrue.</jats:p>