How We Hear

Sounds travel from the outer ear canal via the pinna right to the eardrum where sound vibrations travel to the middle ear. The middle ear consists of three tiny bones (ossicles) which connects the outer ear to the inner ear. The ossicles (Malleus, Incus and Stapes) are vibrated and then cause the sound to move into the inner ear or cochlea through the oval window. Within the cochlea are tiny hair cells and fluid, which vibrate and then send signals to the auditory nerve. The brain then uses this vibration as a signal which is interpreted as “hearing”.