Hearing is the fastest sense we have – it is faster than seeing. Indeed, light moves faster than sound, so that should preclude that seeing is faster. However, we must take into consideration the amount of time it takes for our brains to register information, and our auditory system works faster than our optical system.
Our outer ear picks up sound waves that travel through our ear canal to the eardrum. When sound waves hit the ear drum, a vibration is caused. These vibrations are sent to the malleus, incus, and stapes, the three tiny bones of the middle ear. These three bones are responsible for amplifying and increasing sound vibrations, which are then sent to the cochlea, a snail-shaped, fluid-filled structure located in the inner ear. Here, the vibrations cause the liquid inside the cochlea to ripple, which are detected by the inner ear hair cells. Inner ear hair cells move along with the ripples, causing electric signals that travel to the brain via the auditory nerve. Here in th brain, the auditory process is complete, with our understanding and recognition of the sound.