Protecting Your Hearing. Raising Awareness About Excessive Noise. What is sound?. Vibrations or waves that move through the air or water. Caused by molecules bumping into each other. The faster a wave vibrates, the higher the sound; slower waves produce low sound
Protecting Your Hearing
Raising Awareness About Excessive Noise
into each other.
The ear is divided
into 3 parts:
-The outer ear or pinna,
funnels sound waves into the ear canal, which will lead to the eardrum. This is a membrane that stretches across the entrance to the middle ear.
-The middle ear has three tiny bones, the hammer, the anvil, and the stirrup. This is where waves become amplified.
Inside the inner ear is a coiled tube called the cochlea. It is filled with fluid, special “hair cells,” and nerve endings. It signals the brain, which lets you know what sound you heard. You will also find the semicircular canals which help control balance
Caused by damage to the tiny hair cells in the cochlea. It is permanent.
Band practice, football games, video arcades
Pep rallies, rock concerts
Video Games and arcades
Gas-powered lawn mowers and string trimmers
Turn it down!!
Wear ear plugs!!
Crank It Down!
National Hearing Conservation Association
Oregon Hearing Research Center