-The pinna concentrates sound waves into the ear canal/ meatus; the sound waves strike the ear drum; causing it to vibrate and transform sound waves into vibrations; vibrations from the eardrum are transmitted to the malleus; which amplifies and transmits to the incus; then to the stapes; the stapes vibrates; amplifies and passes the vibrations to the oval window; from the oval window the vibrations are transmitted to the perilymph of the cochlea; vibrations in the fluids of the cochlea disturbs the sensory hair cells which generate nerve impulse; which is transmitted to the brain for interpretation; through the auditory nerve;