Acoustic signal transduction within the human auditory system follows a mechanism wherein air-borne sound wave vibrations are mechanically collected, amplified, and converted into hydrodynamic fluid displacement, ultimately generating electrical neural impulses. The core principle involves the sequential interaction of the outer ear (pinna and auditory canal), the middle ear ossicles (malleus, incus, stapes), and the inner ear structures (oval window, cochlea, and hair cells). This process belongs to the domain of biophysics and neurology, specifically detailing the mechanotransduction rule that bridges mechanical energy in air and fluid to electrochemical signals processed by the central nervous system.
The cochlea is the spiral inner-ear organ of the auditory system in which a bony (osseous) labyrinth encloses a membranous labyrinth, partitioning the cochlear cross-section into three fluid-filled s…