Eardrum

eardrum
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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Eardrum (Umbo) - Ossicles (Malleus, Incus & Stapes) - Stapedius - Tensor tympani - Eustachian tube (Torus tubarius)
Inner ear/Labyrinth
Bony labyrinth (Vestibule) - Membranous labyrinth
Oval window - Helicotrema - Round window ...

Inside of your ear is a thin tissue known as the tympanum, or eardrum. The vibrations in the air cause your eardrum to begin vibrating. Behind your eardrum are three tiny bones called the hammer, the anvil, and the stirrup.

Hearing involves the actions of the external ear, eardrum, ossicles, and cochlea. In hearing, sound waves in air are converted into vibrations of a liquid then into movement of hair cells in the cochlea.

pass down the auditory canal of the outer ear
strike the eardrum (tympanic membrane) causing it to vibrate
these vibrations are transmitted across the middle ear by three tiny, linked bones, the ossicles: ...

The sound is transmitted by air pressure changes to the eardrum, the inner ear ossicles (hammer, anvil and stirrup), and finally the oval window of the cochlea.

tympanic Relating to the tympanum that separates the outer and middle ear (eardrum).
type specimen. A specimen deposited in a museum that formally defines the name of the species that it represents.

See also: Trans, Organ, Cells, Sense, Brain