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    Orthopedics

    The Inner Ear: Understanding the Balance System

    Balance is a group effort of your eyes, inner ear, joints, and muscles. They each send signals to the brain about body position and head movement. The brain uses this information to balance the body. When you have an inner ear problem, the brain may get conflicting signals. This can cause symptoms, such as the feeling of spinning (vertigo).

    The inner ear sends signals

    Inside the inner ear are three semicircular canals. Each canal contains tiny hairs, crystals, and fluid. These structures help the canals sense up-and-down, forward-and-backward, and side-to-side motion. Nerves carry the signals from the canals to the brain.

    Cross section of ear showing outer, middle, and inner ear with closeup of semicircular canals.

    The brain interprets signals

    Signals from all over your body travel to the brain. Once the signals arrive, the brain decides what they mean. Sometimes signals conflict. Have you ever sat on a stopped train and watched a moving train go by? When that happens, your eyes signal that you're moving. But your inner ear and body signal that you're still. The brain weighs conflicting data, such as this, and decides what's true. The result is balance.

    Online Medical Reviewer: Marianne Fraser MSN RN
    Online Medical Reviewer: Rita Sather RN
    Online Medical Reviewer: Stacey Wojcik MBA BSN RN
    Date Last Reviewed: 8/1/2023
    © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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