EAR

The ear consists of three parts: the outer ear, the middle ear, and the inner ear. Hearing begins when sound waves make it to the middle ear, causing the ear drum to vibrate. Explore the different parts and conditions of the ear.
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Why do my ears pop when I dive in the deep end of the pool?

Your ears are very sensitive to the air or water pressure around them. But just what happens when you dive into that pool?

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  • What causes tone deafness?

    What causes tone deafness?

    As you watch someone happily murder every song he belts out at the karaoke bar, you have to wonder whether it's caused by the growing bar tab, a total lack of embarrassment or simple tone deafness. Why do some of us hear music so differently? See more »

  • Why do loud noises cause your ears to ring?

    Why do loud noises cause your ears to ring?

    Back away from that speaker, turn down that iPod and put down that power tool unless you want the ringing in your ears to remain permanent. Sound can hurt you, and that ringing may be the first sign. See more »

  • Why do my ears pop when I dive in the deep end of the pool?

    Why do my ears pop when I dive in the deep end of the pool?

    Your ears are very sensitive to the air or water pressure around them. But just what happens when you dive into that pool? See more »

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