Abstract
Skeletal muscle fiber is composed of a bundle of myofibrils which shows a characteristic striation pattern coming from a periodic array of sarcomeres.1 In each sarcomere, the hexagonal lattices of myofilaments composed of actin and myosin filaments are inter-digitated. The contractile force is produced by the interaction of myosin heads extruded from the myosin filaments with the actin filaments, which causes the two filaments slide with each other. The produced force is transferred to the both ends of the sarcomere via these filaments to Z-bands which mechanically link the adjacent sarcomeres.
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Yamada, T. et al. (2003). Molecular Organizations of Myofibrils of Skeletal Muscle Studied by Atomic Force Microscopy. In: Sugi, H. (eds) Molecular and Cellular Aspects of Muscle Contraction. Advances in Experimental Medicine and Biology, vol 538. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-9029-7_27
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DOI: https://doi.org/10.1007/978-1-4419-9029-7_27
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