| Term | Definition |
|
anvil/incus |
a tiny bone that passes vibrations from the hammer to the stirrup |
|
cochlea |
a spiral shaped, fluid-filled inner ear structure; it is lined with cilia that vibrate and cause a nerve impulse to form |
|
eardrum/tympanic membrane |
a thin membrane that vibrates when sound waves reach it |
|
Eustachian tube |
connects the middle ear to the back of the nose; it equalizes the pressure between the middle ear and air outside |
|
hammer/malleus |
a tiny bone that passes vibratiosn from the eardrum to the anvil |
|
nerves |
these carry electro-chemical signals from the inner ear to the brain |
|
outer ear canal |
the tube through which sound travels to the eardrum |
|
pinna/auricle |
the visible part of the outer ear. It collects sound and directs it into the outer ear canal |
|
semicircular canals |
three loops of fluid-filled tubes that are attached to the cochlea in the inner ear. They help us maintain our sense of balance |
|
stirrup/stapes |
a tiny, U-shaped bone that passes vibrations from the anvil to the cochlea. This is the smallest bone in the human body. |