Myofibrils are made up of complex proteins such as tropomyosin, myosin, actin, and troponin.
Myofibrils are known as bundles of protein filaments containing the contractile elements of the cardiomyocyte.
They are used for performing muscle contraction using the sliding filament. They are composed of complex proteins such as tropomyosin, myosin, actin, and troponin.
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