| 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. |
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