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4 August, 19:11

The sarcomere shortens when the myosin heads of the thick filaments. True or false

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  1. 4 August, 19:18
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    True

    Explanation:

    A muscle tissue get shortened only when the sarcomere changes structurally. Myosin form cross bridges with the actin as they head towards the thick filament. Myosin then pulls the thin filaments and shortens the sarcomeres thereby shortening the skeletal muscles. This process continues till the active sites on actin remain exposed and there is ample availability of calcium ion and ATP.

    Hence, the given statement is true
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