| 11. | In the sarcoplasm are the myofibrils.
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| 12. | Between the myofibrils are the mitochondria.
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| 13. | The weakened contractile function of skeletal muscle is also linked to the state of the myofibrils.
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| 14. | Within the cells of the muscle are myofibrils, which themselves are bundles of protein filaments.
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| 15. | Most of the sarcoplasm is filled with myofibrils, which are long protein cords composed of myofilaments.
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| 16. | Each muscle fiber is composed of long tubes called myofibrils which in turn are composed of filaments.
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| 17. | Ultrastructural examination revealed a loss of lateral alignment of adjacent myofibrils with their Z-lines misaligned.
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| 18. | Myofibrils are complex strands of several kinds of protein filaments organized together into repeating units called sarcomeres.
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| 19. | This drug is known to have toxic effects on myofibrils, resulting in muscle pain and tenderness.
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| 20. | They are generally much smaller than the contractile cells and have few myofibrils which gives them limited contractibility.
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