Auditory ossicles: The three small bones found in the middle ear (including the malleus, incus, and stapes) that transmit sound vibrations from the eardrum to the inner ear.
Cochlea:A spiral-shaped cavity forming a major part of the inner ear, responsible for converting sound vibrations into nerve impulses which are sent to the brain.
Tympanic membrane: Also known as the eardrum, it receives sound vibrations from the outer air and transmits them to the auditory ossicles