Assertion: muscle fiber's sarcomere | /r/HasProperty | figure 10.2.2
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text: The Sarcomere A sarcomere is defined as the region of a myofibril contained between two cytoskeletal structures called Z-discs (also called Z-lines), and the striated appearance of skeletal muscle fibers is due to the arrangement of the thick and thin myofilaments within each sarcomere (Figure 10.2.2).