auditory ossicles

Each of the three small interarticulated bones of the middle ear that amplify the vibrations of the eardrum and transmit them to the internal ear.

malleus

Auricle of the middle ear transmitting vibrations to the incus from the ear drum (to which it is attached).

stapes

Auricle of the middle ear transmitting vibrations from the incus to the internal ear; at about .15 in long, the stapes is the smallest bone in the body.

incus

Auricle of the middle ear articulating with the malleus and the stapes.