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Parts of the Ear
| Term | Definition |
|---|---|
| pinna | collects sound and funnels it into the auditory canal |
| outer ear canal | also called the auditory canal; connects the outer ear with the eardrum |
| eardrum | thin sheet of muscle that vibrates in response to sound |
| ossicles | made up of the hammer, anvil, and stirrup; three bones that amplify the sound through vibrations |
| semicircular canals | three fluid-filled canals that send signals to the brain about your balance |
| cochlea | fluid-filled membrane that passes vibrations to tiny hairs that are connected to the auditory nerves |
| cilia | the tiny hairs on the cochlea that connect to the auditory nerves |
| nerves | send messages to your brain to be interpreted as sound |
| Eustacian tube | equalizes pressure between the two sides of your eardrum |