Examlex
From which of the following countries did Italy gain independence?
Sarcomere
The basic unit of a muscle's cross-striated myofibril and the site of muscle contraction.
Myofilaments
The filaments of myofibrils, constructed from proteins, primarily actin, and myosin, which are essential for muscle contraction.
I Bands
I Bands are the light-appearing regions of a sarcomere in muscle fibers, reflecting areas where thin filaments do not overlap with thick filaments.
Z Lines
The boundaries in a striated muscle fiber that separate one sarcomere from the next, crucial for muscle contraction.
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