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Watching muscles work

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Hank Hogan

When muscles contract, they do so thanks to thousands of tiny biological motors. The motors pull on filaments, which slide past one another, causing the muscles to become shorter, even though the filaments do not. Although this theory has been around for decades, researchers still have questions about the workings of sarcomeres — basic contractile units of striated muscle composed of myosin motors and associated actin filaments. Because of an inability to visualize individual sarcomeres in place, researchers previously studied muscle tissue by taking invasive measurements of cadavers and...Read full article

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    Published: September 2008
    biological motorsBiophotonicsfilamentsMicroscopymusclesNews & Features

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