Redefining the Structure of the Human Ear: From Pressure Reception to Resonance and Bone Conduction

This study redefines the structural theory of the human ear. The tympanic membrane is not a resonant body but a pressure receptor, detecting air molecule momentum rather than re-radiating sound. The vocal cords serve as vibration generators, while the oral cavity and lips act as resonance and re-radiation structures. The external auditory canal is analogous to a stethoscope tube, functioning as a molecular continuity conduit of air. The ossicles are reinterpreted as converters from air conduction to bone conduction, bridging ectodermal sensory reception and mesodermal skeletal transmission. Finally, the cochlea provides a constant fluid environment (pressure, volume, chemical composition), reducing noise and enabling the detection of minimal deviations, modeled by the effective sensory equation: = +α⋅d(dt. This framework shifts the emphasis from resonance to pressure reception, continuity, and conversion, offering a unified physical-biological model of auditory mechanics.