Any source of sound sends vibrations or sound waves into the air. These funnel through the ear opening, down the ear, canal, and strike your eardrum, causing it to vibrate. The vibrations are passed to the small bones of the middle ear, which transmit them to the hearing nerve in the inner ear. Here, the vibrations become nerve impulses and go directly to the brain, which interprets the impulses as sound (music, voice, a car horn, etc.).
Otolaryngology (pronounced oh/toe/lair/in/goll/oh/jee) is the oldest medical specialty in the United States. Otolaryngologists are commonly referred to as ENT physicians.
| 1546 | Account published of first documented successful tracheotomy |
| 1806 | Dutrochet introduces concept of vocal cord movement |
| 1898 | Carbon-type hearing aid first produced |
| 1924 | Otolaryngology specialty board (second such board in U.S.) is formed |
| 1984 | FDA approves first cochlear implant for marketing |
| 1988 | First wearable digital signal processing hearing aid produced |
Learn about the history of medical care of the ears, nose, throat, head, and neck.