middle ear. three ossicles: malleus, incus, and stapes hammer, anvil, and stirrup

acoustic anatomical anatomy anvil auditory balance biological biology canal cavity cochlea cochlear couple cross detailed diagram directly drum ear eardrum education educational energy eustachian external hammer health hear hearing human illustration incus inner internal malleus medical membrane middle nerve organ ossicles outer oval science scientific section sense sensory sound stapes stirrup three tube tympanic use vector vestibular window