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The unit of muscle contraction. Sarcomeres are bounded by Z lins - to which thin filaments attach. Thick filaments are found in the center of the sarcomere - overlapped by thin filaments over one another during contraction reduces the distance betwee

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1. The unit of muscle contraction. Sarcomeres are bounded by Z lins - to which thin filaments attach. Thick filaments are found in the center of the sarcomere - overlapped by thin filaments over one another during contraction reduces the distance betwee





 
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