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15 July, 20:25

As the sarcomere contracts which band becomes smaller? Which band remains the same?

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  1. 16 July, 00:18
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    Anatomy During Contraction

    -Sarcomere, itself, is shorter

    -H-zone is shorter (part of A-band that doesn't have actin filaments in it)

    -I-band gets shorter (part of sarcomere lacking myosin)

    -A-band stays the same size (zone that contains myosin)
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