Every time you talk to a friend or listen to the crashing waves at Vero Beach, your ears are hard at work bringing sound to your brain in a fraction of a second. But how exactly do they accomplish this? Let’s explore the anatomy and function of your ears to uncover their role in your hearing.
The Anatomy of Hearing
Each ear has three main sections that work together to transform sound waves into signals your brain can understand.
Outer Ear: Collecting Sound
The outer ear is the part most people think of when they hear the word “ear.” It includes the visible structure (the pinna or auricle) and the ear canal. Its primary job is to gather sound waves from the environment and channel them inward towards the eardrum.
Middle Ear: Amplifying Sound
Your middle ear is responsible for amplifying sounds. Sound waves travel through the ear canal and vibrate the eardrum. These vibrations pass through the ossicles, three tiny bones in the middle ear, that amplify the vibrations before they reach the inner ear.
Inner Ear: Processing Sound
The inner ear is where sound vibrations turn into something your brain can understand. Vibrations from the middle ear enter the cochlea, a fluid-filled, spiral structure. Inside the cochlea are thousands of microscopic hair cells that respond to specific sound frequencies. These cells convert the vibrations into electrical signals, which travel to your brain through the auditory nerve. Once there, your brain processes the signals as sound.
How Does Hearing Loss Develop?
Anything that interrupts the path of sound through your ears can cause hearing loss. A few temporary and permanent causes include loud noise exposure, aging, genetics, infections and illness, earwax blockage, torn eardrum and medication side effects.
How Can I Protect My Hearing?
Although some causes of hearing loss, like aging or genetics, are beyond your control, you can take steps to protect your hearing from other preventable factors, like loud noise exposure. Take a few of the following steps to safeguard your hearing:
- Keep the volume on your music below 80 dB
- Avoid sticking objects, like cotton swabs and fingers, into your ear canal
- Keep water out of your ear when possible
- Seek prompt treatment for infections and illnesses
- Make an appointment for a safe, professional ear cleaning when necessary
Take charge of your hearing health today by scheduling a comprehensive hearing test with one of our specialists at Aaron's Hearing Aid & Audiology Center.