Contraction

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Contraction occurs by the mechanism of the sliding filament theory. This refers to the overlapping of actin and myosin protein filaments. Myosin heads bind to the myosin binding sites on the actin filament and push the actin filaments towards the centre of the sarcomere, this is the power stroke and results in muscle contraction[1].

Reference

  1. ↑ Silverthorn, D (2012). Human Physiology. 6th ed. United States: Pearson. 406-407
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